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Indian Journal of Weed Science


Print ISSN: 0253-8050
Online ISSN: 0974-8164

NAAS rating: 5.17

Chief Editor

J.S. Mishra
Dr. J.S. Mishra
Principal Scientist, Division of Crop Research,
ICAR Research Complex for Eastern Region,
Bihar Veterinary College, Patna - 800014 (Bihar)
Mobile - +91 9494240904
Email- editorisws@gmail, jsmishra31@gmail.com

Associate editors

Bhagirath S. Chauhan

Dr. Bhagirath Singh Chauhan
Queensland Alliance for Agricultureand Food Innovation
Level 2, Queensland Bioscience Precinct
The University of Queensland
St Lucia QLD 4069, Australia
Email: b.chauhan@uq.edu.au
A.N. Rao
Dr. A.N. Rao
Hydarabad, INDIA
Mobile Number: +91 9440372165
Email: adusumilli.narayanarao@gmail.com

CALL FOR RESEARCH PAPER

Indian Journal of Weed Science is inviting your articles, review article, Research article and Research note on all topics of weed science. IJWS welcomes quality work that focuses on research, development and review. We are looking forward for strict compliance to the modern age standards in all these fields. Authors across the globe are welcome to submit their research papers in the prestigious journal fulfilling the requisite criterion.

Indian Journal of Weed Science (IJWS) is inviting papers for the VOL-53, ISSUE-1 March-(2021)


Article submission guideline

Enter your login details for IJWS below. If you do not already have an account you will need to.. Register here
Author login
  • Author Instruction
  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.

CALL FOR RESEARCH PAPER

Indian Journal of Weed Science is inviting your articles, review article, Research article and Research note on all topics of weed science. IJWS welcomes quality work that focuses on research, development and review. We are looking forward for strict compliance to the modern age standards in all these fields. Authors across the globe are welcome to submit their research papers in the prestigious journal fulfilling the requisite criterion.

Indian Journal of Weed Science (IJWS) is inviting papers for the VOL-51, ISSUE-4 December-(2019)


Article submission guideline

Enter your login details for IJWS below. If you do not already have an account you will need to.. Register here
Author login
  • Author Instruction
  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.
Read More

Guidelines for Authors

Indian Journal of Weed Science is a quarterly journal publishing original research article, research notes, opinion articles and review articles (invited or with prior approval of the title reflecting substantial contributions of the author) covering all areas of weed science research. All contributions must be of a sufficient quality to extend our knowledge in weed science.

The papers submitted should not have been published or communicated elsewhere. Authors will be solely responsible for the factual accuracy of their contribution. Manuscript should not carry any material already published in the same or different forms.

  • Style of Invited paper
  • Style of Research Article
  • Style of Research note

Format

Full length article should be suitably divided into the following sub-sections; ABSTRACT, Key words, INTRODUCTION, MATERIALS AND METHODS, RESULTS AND DISCUSSION and REFERENCES. The heading, introduction need not be mentioned in the text.

Title

The title of article should be informative but concise and should not contain abbreviations. It should indicate the content of the article essential for key word indexing and information retrieval. It should be set in small and bold letters. A good title briefly identifies the subject, indicates the purpose of study and introduces key terms and concepts. Title should not be started with the waste words like 'a study of', 'effect of', 'influence of' , 'some observations on', 'a note of' etc. The title should indicate preferably English name or most popular common name of the crops or organisms studied, wherever relevant. Scientific name can be given in abstract and introduction. Authority for such a name should be given at first mention in the text. A short title should be given for running headlines and should cover the main theme of the article.

Author(s) name(s) and affiliations

The name(s) of the author(s) should be given in small letters with sentence case separated by 'comma' or by 'and'. Institute name where the research was carried out should be given in italics. If authors are of different institutes, these can be mentioned by allotting number like 1, 2 or 3 as superscript over the name of author. The affiliation of such author may be given below of the corresponding author email address. Sometimes authors retire and change frequently and wish to give their current address, this should be given as foot note. Email address of main author or corresponding author should be given at the bottom.

Abstract

The abstract should contain at least one sentence on each of the following: objective of investigation (hypothesis, purpose, collection, result and conclusions). Give complete scientific name for plants or other organisms and full name of any symbol or abbreviations used. There is a need to mention place, name and priod of study in abstract. Emphasis should be given to highlight the results and the conclusion of the study. It should not exceed a total length of 200-250 words. Abstract should not have the words like 'will be explained or will be discussed'.

Key words

(5 6) should be given at the end of the abstract and should be arranged alphabetically. Each key word should be started with capital letter and separated by comma ( , ) from other words.

Introduction

Introduction should be brief and to the point, cover the problem and should justify the work or the hypothesis on which it is based. In introduction, a detail review is not necessary. However, to orient readers, important references about previous concepts and research should be given. It should briefly state the currently available information and should identify the research gap that is expected to be abridged through this investigation. Give preference to recent references from standard research publication unless it is of historical importance or a landmark in that field.

Materials and Methods

This part should begin with information relating to period/season/year and place of study, climate or weather conditions, soil type etc. Treatment details along with techniques and experimental design, replications, plot size etc. should be clearly indicated. Use of symbols for treatments may be avoided and an abbreviation should be fully explained at its first mention. Crop variety, methodology for application and common cultivation practices should be mentioned. Known methods may be just indicated giving reference but new techniques developed and followed should be described in detail. Methods can be divided into suitable sub-headings, typed in bold at first level and in italics at second level, if necessary.

Results and Discussion

Results may be reported and discussed together to avoid duplication. Do not mention and recite the data in the text as such given in the table. Instead interpret it suitably by indicating in terms of per cent, absolute change or any other derivations. Relate results to the objectives with suitable interpretation of the references given in the introduction. If results differ from the previous study, suitable interpretation and justification should be given. Repeated use of statements like 'our results are in agreement’ or ‘similar results were reported’ 'should be avoided. At the end of results and discussion, conclusion of the study should be given in 2-3 sentences along with suggestion for further study, if any. All statistical comparisons among treatments may be made at P=0.05 level of probability.

Acknowledgement

The authors may place on record the help and cooperation or any financial help received from any source, person or organization for this study. This should be very brief.

References

Only relevant and recent references of standard work should be quoted. Preference should be given to quote references of journals over proceedings or reports. In general, not more than 15 references should be quoted in full paper and 5 in short communication. However, in review article, emphasis should be given to quote more references with each valid statement/findings in the text. There is no need to give references for standard procedures of soil and plant analysis, and for routine statistical analysis in practice, only the methodology may be indicated. As a thumb rule, all the references quoted in the text must appear at the end of the article and vice-verse. It has been decided to use full name of the journal after the year 2011 onwards. Therefore, references should include names of all authors, year, full title of the article quoted, full name of the journal in italics (no abbreviations), volume number (in Bold), issue number (in brackets) and pages. For books, monographs, theses etc. full title in italics, publisher or university name, volume no., if any, and relevant page range or total no. of pages should be given. The list of references should be arranged alphabetically on author's names and chronologically per author. Author name should be started with surname and initial letter with capital letter. There is no need to separate author's initials by full stop but it should be given in capital letters without gap. Each author name should be separated by comma (,) and last author name by ‘and’. A few examples of correct citation of references for Indian Journal of Weed Science are given below:

Singh Samunder, Punia SS, Yadav A and Hooda VS. 2011. Evaluation of carfentrazone-ethyl + metsulfuron-methyl against broadleaf weeds of wheat. Indian Journal of Weed Science 43(1&2): 12-22.

Neeser C and Varshney Jay G. 2001. Purple nutsedge; biology and principles for management without herbicides, Indian Journal of Pulses Research 14(1): 10-19.

Naseema A, Praveena R and Salim AM. 2004. Ecofriendly management of water hyacinth with a mycoherbicide and cashew nut shell liquid. Pakistan Journal of Weed Science Research 10(1&2): 93-100.

Arya DR, Kapoor RD and Dhirajpant. 2008. Herbicide tolerant crops: a boon to Indian agriculture, pp 23-31. In: Biennial Conference on Weed Management in Modern Agriculture: Emerging Challenges and Opportunities. (Eds. Sharma RS, Sushilkumar, Mishra JS, Barman KK and Sondhia Shobha), 27-28 February 2008, Patna. Indian Society of Weed Science, Jabalpur.

Anonymous. 2006. Long-term herbicide trial in transplanted lowland rice-rice cropping system, pp 62-68. In: Annual Progress Report, AICRP on Weed Control, Tamil Nadu Agricultural University, Coimbatore.

DWSR. 2010. Annual Report, 2010-11, pp 35-37. Directorate of Weed Science Research, Jabalpur.

Gopal B and Sharma KP. 1981. Water hyacinth (Eichhornia crassipes) the most troublesome weeds of the world. Hindasia Publisher, New Delhi, 129 p.

Sushilkumar, Sondhia S and Vishwakarma K. 2003. Role of insects in suppression of problematic alligator weed (Altemanthera philoxeroides) and testing of herbicides for its integrated management. Final Report of ICAR Adhoc Project, 39 p.

For Web references: the full URL should be given and the date when the reference was last accessed. e.g. http://www.faostat.fao.org (accessed 21 May 2019)

Length

Paper TypeMaximum Length (including tables and figures)
Research Article6000 words
Research note4000 words
Review8000 words
Mini-Review5000 words

Units, abbreviations and nomenclature

For physical units, unit names and symbols, the SI system should be employed. Biological names should be given according to the latest international nomenclature. Upon its first use in the title, abstract and text, the common name of a weed should be followed by the scientific name (genus, species and authority) in parentheses. If no common name exists in English, the scientific name should be used only. At the first mention of an herbicide or other chemical substance, give its generic name only. Trade names should not be used. Biological and zoological names, gene designations and gene symbols should be italicized. Yield data should be reported in kg/ha or t/ha. All such letters such as viz., et al., in situ, ex situ, Rabi, Kharif, i.e., etc. should be italicized.

Tables and figures

Tables and figures should be concise and limited to the necessary minimum. We encourage the authors to set tables and figures at the appropriate places in the article but if it is not possible, the same may be given separately. The title should fully describe the contents of the table and explain any symbol or abbreviations used in it. The standard abbreviations of the units of different parameters should be indicated in parentheses. Vertical lines should not be given in the tables and horizontal lines should be used to separate parameters and end of the table.

Figures may be preferred in place of table. In no case the same data should be presented by both tables and figures. While presenting data through line graphs, vertical bars, cylinders, pie charts etc, the same should be preferred with black lines or bars having different clear symbols and shades. The graphs chosen with colours reproduce poorly and should not be given unless it became necessary.

Some useful tips

Avoid numerals and abbreviations at the beginning of a sentence. Don't use superscript for per hectare, ton or meter (kg ha-1 or t ha-1) instead use kg/ha or g/m2, t/ha, mg/g, ml/l etc. Prefer to mention yield data in t/ha only. If it becomes necessary, give yield in kg/ha but not in quintal. Don't use lakh, crores or arabs in text, instead give such figures in million. Only standard abbreviations should be used and invariably be explained at first mention. Avoid use of self-made abbreviations like iso., buta., rizo., etc. Don't use first letter capital for names of plant protection chemicals but it should be used for trade names. Use of treatment symbols like T1 T2 T3 etc. should be avoided. All weights and measurements must be in SI or metric units. Use % after double digit figures, not per cent, for example 10% not 10 per cent. In a series of range of measurement, mention the units only at the end, e.g. 3,4,5 kg/ha instead of 3 kg/ha, 4 kg/ha and 5 kg/ha. Nutrient doses as well as concentration in soil and plant should be given in elemental form only, i.e. P and K should not be given as P2O5 K2O. A variety may be mentioned within single quotes in italic such as 'Pusa Basmai', 'Kufri Sinduri' etc. Statistical data should be given in LSD (P=0.05) instead CD (P=0.05).

Authors are requested to see the recent issue of the journal to prepare the manuscript as per the journal's format.

Manuscript submission

Manuscripts must conform to the journal style (see the latest issue). Correct language is the responsibility of the author. After having received a contribution, there will be a review process, before the Chief Editor makes the definitive decision upon the acceptance for publication. Referee's comments along with editors comments will be communicated to authors as scanned copy/soft copy through email. After revision, author should send back the copy of revised manuscripts to the Chief Editor, ISWS by e-mail only.

Editorial Board reserves the right to suitably modify, accept or reject the MS in view on the reviewer's advice.

We encourage submission of paper only by electronically via E-mail as one complete word document file. When preparing your file, please use only Times New Roman font for text (title 16, all heads 14 and text of 12 point, double spacing with 1.5" margin all the sides) and Symbol font for Greek letters to avoid inadvertent character substitutions.

All manuscripts should be submitted Online (http://www.isws.org.in/login_IJWS.aspx). For authors unable to submit their manuscript online

To see sample copy to prepare the manuscript, please Log on: http://www.isws.org.in/IJWSn/Journal.aspx

Peer Review Policy

All published articles in Indian Journal of Weed Science (IJWS) are subjected to rigorous peer review processes based on initial editor screening and anonymized refereeing by two referees. The ultimate purpose of peer review is to sustain the originality and quality of research work and filtration of poor quality and plagiarized articles. Peer review assures research quality.

Paper Publication Process –

  • Manuscripts are received online in the editorial office with the certificate that MS has not been sent for consideration in any other journals for consideration.
  • Manuscripts are checked by office for its style and pattern and for plagiarism. If plagiarism is more than 20%, it is not considered and sent back to author for revision and re-submission.
  • If MS is found fit at Editorial office in context to plagiarism and style and pattern, it is sent to Chief Editor for further processing.
  • If chief Editor find the MS suitable for consideration, he shall suggest two name of referees as reviewers either from editorial board or from other institutions of concern discipline for reviewing the MS.
  • Editorial Office shall send the MS for double blind review to the reviewers suggested by Chief Editor.
  • Comments of double -blind reviewers will be sent to corresponding author without disclosing the identity of the reviewers to address the comments and re-submission of MS.
  • In case, one reviewer rejects while other accept the MS, it is sent to third reviewer suggested by Chief Editor.
  • Revised MS is again sent to reviewers to see whether their comments are addressed suitably.
  • On agreeing by the reviewers, the MS is again sent to Chief Editors with comments of reviewers and reply of author to take the final decision.
  • The final decision of Chief Editor is communicated to authors.

Peer Review Policy

The practice of peer review is to ensure that only good science is published. It is an objective process at the heart of good scholarly publishing and is carried out by all reputable scientific journals. Our reviewers therefore play a vital role in maintaining the high standards of the (Indian Journal of Weed Science) Journal of Management and Research and all manuscripts are peer reviewed following the procedure outlined below.

Initial manuscript evaluation

The Editors first evaluate all manuscripts. In some circumstances it is entirely feasible for an exceptional manuscript to be accepted at this stage. Those rejected at this stage are insufficiently original, have serious scientific flaws, have poor grammar or English language, or are outside the aims and scope of the journal. Those that meet the minimum criteria are passed on to experts for review.

Authors of manuscripts rejected at this stage will be informed within 2 weeks of receipt.

Type of Peer Review

The (Indian Journal of Weed Science) employs double blind review, where the reviewer remains anonymous to the authors throughout the process.

How the reviewer is selected

Reviewers are matched to the paper according to their expertise. Our reviewer database contains reviewer contact details together with their subject areas of interest, and this is constantly being updated.

Reviewer reports

Reviewers are asked to evaluate whether the manuscript:

  • Is original
  • Is methodologically sound
  • Follows appropriate ethical guidelines
  • Has results which are clearly presented and support the conclusions
  • Correctly references previous relevant work

Reviewers are not expected to correct or copyedit manuscripts. Language correction is not part of the peer review process. Reviewers are requested to refrain from giving their personal opinion in the "Reviewer blind comments to Author" section of their review on whether or not the paper should be published. Personal opinions can be expressed in the "Reviewer confidential comments to Editor" section.

How long does the peer review process take?

Typically the manuscript will be reviewed within 2-8 weeks. Should the reviewers' reports contradict one another or a report is unnecessarily delayed a further expert opinion will be sought. Revised manuscripts are usually returned to the Editors within 3 weeks and the Editors may request further advice from the reviewers at this time. The Editors may request more than one revision of a manuscript.

Final report

A final decision to accept or reject the manuscript will be sent to the author along with any recommendations made by the reviewers, and may include verbatim comments by the reviewers.
Chief Editor's Decision is final
Reviewers advise the Editors, who are responsible for the final decision to accept or reject the article.

Special Issues / Conference Proceedings

Special issues and/or conference proceedings may have different peer review procedures involving, for example, Guest Editors, conference organizers or scientific committees. Authors contributing to these projects may receive full details of the peer review process on request from the editorial office.

Becoming a Reviewer for the (Indian Journal of Weed Science)

If you are not currently a reviewer for the (Indian Journal of Weed Science) but would like to be considered as a reviewer for this Journal, please contact the editorial office by e-mail at (editorisws@gmail.com), and provide your contact details. If your request is approved and you are added to the online reviewer database you will receive a confirmatory email, asking you to add details on your field of expertise, in the format of subject classifications.

Editorial Board

Editorial office:

Office Manager, Indian Society of Weed Science, ICAR-Directorate of Weed Research, Maharajpur, Jabalpur, India 482 004

Publisher Address:

Secretary, Indian Society of Weed Science, ICAR-Directorate of Weed Research, Maharajpur, Jabalpur, India 482 004

Principal Scientist
Division of Crop Research
ICAR Research Complex for Eastern Region
Bihar Veterinary College, Patna - 800014 (Bihar)

Chief Editor J.S. Mishra 9494240904 jsmishra31@gmail.com

The University of Queensland
St Lucia QLD 4069, Australia

Associate Editor Bhagirath Singh Chauhan b.chauhan@uq.edu.au

Consultant,
ICRISAT,
International Crops Research Institute for Semi-Arid Tropics
Patancheru, Hyderabad

Associate Editor A.N. Rao 9440372165 adusumilli.narayanarao@gmail.com

Editors

Professor,
Department of Agronomy, CCSHAU,
Hisar-125 004 (Haryana)

Ashok Kumar Yadav 9416995523 aky444@gmail.com

Professor & Head,
Division of Agronomy
FoA, Main Campus,
Chatha, SKUAST-Jammu (J&K)

B.C. Sharma 9419152428 drbhagwati@gmail.com

Principal
Vanavarayar Institute of Agriculture
Affiliated to TNAU)
Manakkadavu, Pollachi-642103 (Tamil Nadu)

C. Chinnusamy 9443721575 chinnusamyc@gmail.com

Scientist,
ICAR - Directorate of Weed Research,
Jabalpur (Madhya Padesh)

Dibakar Ghosh 8989190213 dghoshagro@gmail.com

Principal Scientist
Department of Agronomy,
Assam Agricultural University
Jorhat - 785013 (Assam)

I.C. Barua 9435094326 iswar_barua@yahoo.co.in

Principal Scientist
PJTSAU, Hyderabad-30 (Telangana)

M. Madhavi 9491021999 molluru_m@yahoo.com

Assistant Agronomist
Directorate of Agriculture (Govt. of WB)
Kolkata 700001, West Bengal

Malay Kumar Bhowmick 9434239688 bhowmick_malay@rediffmail.com

Associate Professor
(Soil Science & Agrl. Chemistry)
Anbil Dharmalingam Agricultural College & Research Institute (TNAU),
Trichy (Tamil Nadu)

P. Janaki 9443936160 janakibalamurugan@rediffmail.com

Assistant Chemist (Residue),
Department of Agronomy,
Punjab Agricultural University
Ludhina-141 004 (Punjab)

Pervinder Kaur 9646105418 pervi_7@yahoo.co.in

Sr. Agronomist, Directorate of Extension Education
Punjab Agricultural University
Ludhiana – 141004 (Punjab)

Simerjeet Kaur 9814081108 simer@pau.edu

College of Horticulture,
Vellanikkara. Thrissur – 680 656, (Kerala)

T. Girija 9447004940 girijavijai@gmail.com

Principal Scientist,
Directorate of Maize Research,
Pusa Campus, New Delhi-110012

C.M. Parihar 9013172214 pariharcm@gmail.com

Indexing Indexing & Abstracting Services


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Volume- 42 | Issue-1&2 Supplymentary (Jan-Jun) | Year 2010

Current status of zero tillage in weed management
V. Pratap Singh, Abnish Kumar and Akshita Banga
Review article | DOI: IJWS-2010-42-1&2 Supplymentary-1 | Volume: 42 Page No:1-9 |
Address & Email | Article preview | View PFD | Download

Abstract:

Rice and wheat are the major cereals in India hence  rice-wheat system provides the staple grain supply for a large portion of the world's population and mainly this system is critically important for global food security. Twenty five per cent of the total rice area of the country is grown in rotation involving wheat, whereas 40% of wheat is grown in rotation with rice. The rice-wheat cropping system with zero tillage is the best cropping system with lower risk as it has major benefits such as improving water use efficiency, reduced cost due to saving in the fuel and labour, timely planting of crops, results in higher yield, reduced weed density and has a positive environmental impact. Hence, zero tillage are divisible nature and flexible in operation allowing farmers to benefit from than under driver situation. Tillage influences weed infestation, and thus interaction between tillage and weed control practices are commonly observed in crop production. Adequate tillage checks and delays emergence of weeds and provides a more favourable environment for early crop establishment. This paper presents current status of zero tillage in context to weed management in India.

Email

vpratapsingh@rediffmail.com

Address

G.B. Pant University of Agriculture & Technology, Pantnagar (Uttarakhand)
Integrated weed management in marigold under irrigated sub-tropical conditions of Jammu & Kashmir
Anil Kumar, B.C. Sharma, Rakesh Kumar, Parshotam K. Sharma and Veena Wazir
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-2 | Volume: 42 Page No:10-13 |
Address & Email | Article preview | View PFD | Download

Abstract:

A field experiment was conducted during the rabi seasons of 2007-08 to 2009-10 to find out the relative efficiency of weed management practices in marigold (Tagetes erecta Linn). The results indicated that a significantly higher weed control efficiency was achieved with the treatments of two hand weedings (20, 40 DAS) followed by trifluralin 1.0 kg/ha pre-plant incorporation (PPI) + 1HW. The data on yield and yield attributing characters viz., plant height stem diameter, number of leaves/plant, number of flowers/plant and flower yield were significantly influenced by various weed management treatments. The highest flower yield 29140 kg/ha was recorded with the application of two hand weedings which was at par with trifluralin 1.0 kg/ha pre-plant incorporation fb 1HW. Significantly lowest flower yield of marigold was recorded in weedy check plots.

Email

anillau@gmail.com

Address

Division of Agronomy, FoA, SKUAST-J, Chatha, Jammu, (Jammu & Kashmir)
Influence of sowing time and weed control methods on weed flora and productivity of direct seeded upland rice
R.R. Upasani, R. Thakur and M.K. Singh
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-3 | Volume: 42 Page No:14-16 |
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Abstract:

The field experiments were conducted during kharif seasons of 2008 and 2009 at the Agronomy Research Area, Birsa Agricultural University, Ranchi on sandy loam soil to study the effect of sowing time and weed control methods on weed flora and productivity of direct seeded upland rice. Results showed that broad leaf weeds constituted 56%, grasses 40% and sedges 4% of the total weed population at 30 days after sowing. Post monsoon sown direct seeded rice produced significantly higher grain (1967 kg/ha) and straw (2967 kg/ha) yield with net return of Rs 9465/ha and benefit: cost ratio of 1.92 than pre monsoon sown crop owing to higher total and effective tillers, grains/ panicle and 1000- grain weight along with lower weed density, weed dry matter and higher weed control efficiency. Grain yield of rice was statistically at par among pretilachlor + safener 0.5 kg/ha and butachlor 1.5 kg/ha + one hand weeding at 25 days after sowing (DAS) but significantly higher than other weed control methods except weed free. Application of pretilachlor + safener 0.5 kg/ha was remunerative in direct seeded rice as it had higher net return (Rs 9459/ha) and benefit: cost ratio (1.98).

Email

raaviupasani68@gmail.com

Address

Department of Agronomy, Birsa Agricultural University, Ranchi, (Jharkhand)
Effect of pre-and post-emergence herbicides on weed infestation and productivity of soybean
Rakesh Chandra Nainwal, S.C. Saxena and V. Pratap Singh
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-4 | Volume: 42 Page No:17-20 |
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Abstract:

A field experiment was conducted during kharif 2008 and 2009, to study the effect of different pre-and post-emergence applications of herbicide on weed infestation and grain yield of soybean [Glycine max (L.)Merr.]. Among the different herbicides, the highest seed yield was recorded with lone application of diclosulam 18 g/ha as pre-emergence supplemented with one hand weeding at 20 DAS and application of diclosulam 18 g/ha as pre-emergence followed by haloxyfop 100 g/ha as postemergence. However, these were significantly at par with weed-free treatment. The highest weed control efficiency and the lowest weed biomass were recorded in weed-free treatment followed by application of diclosulam 18 g/ha as pre-emergence with one hand weeding at 20 DAS. Application of diclosulam as pre-emergence also performed better over the standard check either applied pendimethalin as pre- or post-plant incorporation of fluchloralin before the sowing of the seed.

Email

nainwal.rakesh@gmail.com

Address

Department of Agronomy, G. B. Pant University of Agriculture and Technology, Pantnagar (Uttrakhand)
Sorption of oxadiargyl and butachlor in selected soils of Andhra Pradesh
P. Chandrasekhar Rao, Ch. S. Rama Lakshmi, M. Madhavi, A. Sireesha and G. Swapna
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-5 | Volume: 42 Page No:21-26 |
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Abstract:

Adsorption-desorption was studied by batch equilibrium technique at 37+1 C at different concentrations of oxadiargyl and butachlor in selected soils of Andhra Pradesh. Desorption isotherms showed a considerable hysteresis which was more prominent when desorption was carried out at higher concentrations of adsorbed oxadiargyl and butachlor. Desorption isotherms at lowest level of adsorbed herbicide concentration were close to adsorption isotherms. The cumulative desorption after five desorption steps was significantly different for all the initial concentrations of adsorbed herbicide for all the soils. Desorption of these herbicides was higher in Alfisol than Vertisol, might be attributed to low organic carbon and low clay content. The variation in per cent desorbed may be due to heterogeneity involved in different soils, that vary widely in type and energy of bonding. Desorption isotherms confirmed to Freundlich's equation and the Freundlich's constants increased with increasing initial concentration of adsorbed herbicide thus confirming the irreversible nature of the adsorption of oxadiargyl and butachlor on these soils

Email

sitaramalakshmi20@yahoo.com

Address

AICRP Weed Centrol, ANGRAU, Rajendranagar, Hyderabad (Andhra Pradesh )
Efficacy of imazethapyr against monocot weeds in groundnut
Megha Dubey, Smita Singh, M.L. Kewat and J.K. Sharma
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-6 | Volume: 42 Page No:27-30 |
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Abstract:

A field experiment was conducted during kharif seasons of 2008 and 2009 at Livestock Farm, JNKVV, Jabalpur, to evaluate the efficacy of imazethapyr against weeds in groundnut. Eight treatments comprising of five doses of imazethapyr 50, 100, 150, 200 and 300g/ha alone, combined application of imazethapyr + chlorimuron (100+24 g/ha), hand weeding twice (20 and 40 DAS) including weedy check were laidout in randomized block design with three replications. The experimental field was infested with monocot weeds like Cyperus iria (44.08%) Echinochloa colona (30.51%) and Dinebra retroflexa (25.39%) at 40 DAS during both the years among the sedges and grassy weeds. The efficacy of imazethapyr at lowest rate (50 g/ha) was poor, which improved with the increase in application rates from 150 to 300 g/ha. However, combined application of imazethapyr at lower rate 100 g/ha with chlorimuron 24 g/ha paralyzed the weed growth identically (98.1%) to that of hand weeding twice (98.6%) and attained the superior values of yield attributes (13.5 pods/plant, 2.4 kernels/pod) as well as higher pod and haulm yields (12.83 and 21.21 q/ha). The latter treatment was also found more remunerative as it fetched the maximum values of net monetary returns (Rs 14096/ha) and benefit:cost ratio (1.8) and surpassed the recommended practice of weed control viz., hand weeding twice which recorded the inferior values of net monetary return (Rs 10194/ha) and B:C ratio (1.4) due to more cost of weed control.

Email

meghadubey33@yahoo.com

Address

Department of Agronomy, College of Agriculture, JNKVV, Jabalpur (Madhya Pradesh)
Weed shift and grain yield as influenced by tillage and weed management methods in rice-wheat cropping system in Chattisgarh
A.P. Singh, T. Chowdhury, S.S. Kolhe, M.C. Bhambri and B.L. Chandrakar
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-7 | Volume: 42 Page No:31-36 |
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Abstract:

A field experiment was conducted in rainy season of 2005, 2006 and 2007 with direct seeded line sown rice as first crop and wheat as subsequent crop in winter season at the University farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh, India to understand the effect of tillage systems and weed control methods on weed flora and grain yield of rice-wheat cropping system. The weeds found in initial two year consisted of Echinochloa colona, Ischaemum rugosum, Fimbristylis miliacea, Cyperus iria, Alternanthera triandra, Cynotis axillaris and Croton bonplandianum. In third Year, Setaria glauca emerged as new weed and Fimbristylis miliacea got disappeared, whereas in wheat, broad leaf weeds like Melilotus indica and Chenopodium album dominated the weed flora. In the initial two years, the grain yield of rice was not influenced significantly due to tillage methods, but during 2007, the grain yield was significantly higher by 10.24% under zero tillage than conventional tillage. Among the different weed control practices, farmer's practice produced maximum grain yield which was significantly superior over recommended herbicide and unweeded check and the increase in yield was to the tune of 48.09 and 96.64%, respectively, in order. During dry season, significantly higher grain yield of wheat by 5.55% was recorded under conventional tillage than zero tillage. Significant variation in grain yield and yield attributes was also registered due to various weed control treatments. Grain yield of wheat was significantly higher under herbicidal treatment i.e. pendimethalin 1.0 kg/ha as preemergence followed by metsulfuron 2.0 g/ha as post-emergence by 10.0 and 31.3%, respectively, as compared to farmer's practice i.e. two hand weeding and weedy check.

Email

apasingh@yahoo.com

Address

Department of Agronomy, Indira Gandhi Krishi Vishwavidyalaya, Raipur (Chhattisgarh)
Weed flora of cotton and clusterbean in Haryana
S.S. Punia, Dharambir Yadav, Amrit Pal Brar, Yash Pal Malik and Ramesh Yadav
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-8 | Volume: 42 Page No:37-41 |
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Abstract:

A survey of weed flora of cotton and clusterbean in south-western Haryana revealed that a total of 22 species were found to infest cotton crop, out of which 7 were grassy, one was sedge and 14 were broad leaf weeds. On the basis of IVI values, Trianthema portulacastrum, Dactyloctenium aegypticum, Echinochloa colona, Digera arvensis and Cyperus rotundus were found highly associated with cotton crop in all districts. T. portulacastrum alone constituted 48.7-56.8% of total weed flora with IVI values of 58.1-72.7 in all the districts, was the most dominant weed of cotton crop. Similarly cluster bean crop was found to infest with 25 major weeds of which 9 were grassy, 2 were sedges and 14 were broad leaf weeds viz., Digera arvensis, Cleome viscosa T. portulacastrum, Cyperus rotundus, Physallis minima, D. aegypticum, Corchorus tridens, Mollugo verticillata and Cucumis callosus. Digera arvensis constituting 43.2 to 69 % of total weed flora alone was the most dominant weed of cluster bean crop in all the districts except Bhiwani and Mahender Garh where C. viscosa was the most dominant weed with a relative density of 34.4 and 27.9 % and IVI values of 41.4 & 33.3, respectively. Among grassy weeds, Dactyloctenium aegypticum was the major grassy weed in all districts except in Mewat where Echinochloa colona was the most dominant weed with IVI value of 27.9. Mollugo verticillata, a weed of loamy sand soils showed its presence in Bhiwani, Mahender Garh, Jhajjar and Rewari only

Email

jagir@hau.ernet.in

Address

Department of Agronomy, CCS HAU, Hisar (Haryana)
Effect of different herbicides on weeds and yield of zero tilled wheat
V.C. Dhyani, R.D. Misra, Anand Prakash and Sumit Chaturvedi
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-9 | Volume: 42 Page No:42-47 |
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Abstract:

A field experiment was carried out to study the effect of doses and stage of application of various herbicides namely sulfosulfuron, isoproturon and metribuzin during rabi 2003-04 and 2004-05 at Pantnagar. All the herbicides reduced dry matter of weeds at 60 days more effectively when they were applied at higher rates and after first irrigation. Annual weeds and total weeds were higher in conventional tillage than zero tillage under weedy situation while perennial weeds were more in zero tillage. Under zero tillage, sulfosulfuron at 25 g/ha after first irrigation recorded highest grain yield viz., 4431 kg/ha and 3924 kg/ha during 2003-04 and 2004-05, respectively. Weed control efficiency (94% during both experimental years) too was highest in this treatment. However, two hand weeding at 30 and 45 days stage under conventional tillage recorded highest yield among all the treatments. Use of herbicides under zero tillage fetched higher net returns than hand weeding at 30 and 45 days after sowing.

Email

dhyanivipin@gmail.com

Address

Department of Agronomy, G.B. Pant University of Agricultural & Technology, Pantnagar (Uttarakhand)
Weed seed bank and weed flora dynamics as influenced by weed management practices in wheat and rice under wheat-rice cropping system
Purshotam Singh, Parmeet Singh, Narinder Panotra, K.N. Singh and S.K. Sawhney
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-10 | Volume: 42 Page No:48-52 |
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Abstract:

To study the effect of weed control methods on weed seed bank and composition of weed flora in wheat and rice under wheat-rice system, a field experiment was conducted at crop research center of GBPUAT, Pantnagar during rabi and kharif of 2001-02 and 2002-2003. The weed seed bank studies revealed that application of herbicides has no significant effect on the weed seed bank of soil. Weed control treatments isoproturon + hand weeding in wheat and butachlor + hand weeding in rice recorded less number of weed seeds (14450, 3800 and 605 of Phalaris minor, Chenopodium album and Melilotus alba, respectively in wheat and 2650, 2048 and 4265 of Echinochloa colona, Echinochloa crusgalli and Paspalum scrobiculatum, respectively in rice). Under the influence of different weed management practices, there was significant negative relationship of grain yield with weed dry weight and weed seed bank in both wheat and rice. Among herbicide treatments, isoproturon (1.0 kg/ha) + hand weeding; butachlor (1.5 kg/ha) + hand weeding followed by isoproturon (1.0 kg/ha) +2,4-D (0.5 kg/ha); butachlor (1.5 kg/ha) fb 2,4-D (0.5 kg/ha) + organic matter through Sesbania aculeata were found effective in reducing total weed population, weed dry matter and weed seed density there by increasing yield of wheat and rice.

Email

drpurshotam@gmail.com

Address

Dept. of Agronomy, Sher-e-Kashmir University of Agricultural Sciences and Technology (Jammu & Kashmir)
Effect of weed management on growth and yield of finger millet
Adikant Pradhan, A.S. Rajput and A. Thakur
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-11 | Volume: 42 Page No:53-56 |
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Abstract:

The experiment comprising 12 weed management practices with different herbicidal doses and hand weeding was conducted on light textured soil of S.G. College of Agriculture and Research Station, Jagdalpur, during kharif season of 2004, 2005 and 2006. Digitaria sangunalis, Eleusine indica, Setaria gluaca, Cyperus rotundus and Echinochloa colona among monocot and Celosia argentea, Commelina benghalensis, Spilanthus ecmela and Euphorbia geniculata among broad leaf weeds were dominant. Irrespective of weed management practices, density and dry weight of weeds and weed control efficiency were higher in pre-emergence application of oxyfluorfen 0.50 kg/ha + one hand weeding at 20 DAS (60.18) over weedy check. The control was highest under oxyfluorfen 0.50 kg/ha + two hand weeding at 30 and 45 DAS, followed by oxyfluorfen 0.25 kg/ha + two hand weeding at 30 and 45 DAS.

Email

adi_197753@rediffmail.com

Address

S.G. College of Agriculture and Research Station, Jagdalpur (Chhattisgarh)
Efficacy of tillage and weed management practices on weed infestation and yield of wheat
Dhiman Sen, Rohitashav Singh and Radhey Shyam
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-12 | Volume: 42 Page No:57-61 |
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Abstract:

Effect of tillage methods and weed management practices on weed infestation and yield of wheat was studied during 2002-2003 and 2003-2004. Density and dry weight of total weeds recorded lower under zero till and bed planting system as compared to conventional tillage for initial year. In second year, it was again recorded lowest under zero tillage, but increasing trend was observed under bed planting situation. Number of spikes as well as grain yield was not influenced by tillage methods during first year, but was found maximum under zero till situation in the next year. Excellent suppression of weeds and thereby higher yields were obtained under two hand weeding under conventional system. Under weedy situation, zero till system was found better because of lesser weed emergence.

Email

rohitash_1961@rediffmail.com

Address

G.B. Pant University of Agriculture & Technology Pantnagar, U.S. Nagar (Uttarakhand)
Impact of weed management practices on simulation of dry matter in maize through empirical models
Mohammad Yousuf Fakoor, T.V. Ramachandra Prasad, G.R. Denesh and H.V. Nanjappa
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-13 | Volume: 42 Page No:62-66 |
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Abstract:

A field experiment was conducted during kharif 2007 at the Main Research Station, University of Agricultural Sciences, Hebbal, Bangalore, under irrigated conditions to know the pattern of dry matter production in maize using empirical models under weed management practices. Empirical models simulated the crop growth (dry matter production) of maize by 98% indicating that competition of weed types did not alter the pattern of growth of maize, but cumulatively affected the total dry matter at harvest, where as, the linear function predicted the crop growth by 92 to 94%. Differentiating quadratic and linear functions indicated that dry matter production efficiency (DMPE) were improved by 34 to 46% in hand weeding or atrazine treatments due to elimination of weed competition over unweeded control. Competition of grassy weeds (in 2,4-D EE treatment) lowered the DMPE by 24% over atrazine treatment with less weed competition, while competition from broad leaf weeds and sedge lowered the DMPE by 22%. Thus grasses showed higher competitive ability, followed by broad leaf weeds and sedges.

Email

tvramachandraprasad@rediffmail.com

Address

AICRP Weed Control, Main Research Station, University of Agricultural Sciences, Hebbal, Bangalore (Karnataka)
Productivity of rice as affected by planting method and weed management
Deeba Hassan, R.R. Upasani, R. Thakur, M.K. Singh and A.N. Puran
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-14 | Volume: 42 Page No:67-69 |
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Abstract:

A field experiment was conducted during kharif seasons of 2008 and 2009 at the research farm of Birsa Agricultural University, Ranchi with the objective to study the effect of establishment and weed control methods on weed dynamics and productivity of rice. Results indicated that transplanting of rice recorded reduced weed population as well as dry matter with higher weed control efficiency resulting in higher grain yield. Among weed control methods, application of pyrazosulfuron as pre emergence 20 g/ha + mechanical weeding (40 days after sowing) with lower weed population and weed dry matter had higher weed control efficiency as well as grain yield. Transplanting associated with application of pyrazosulfuron + mechanical weeding produced maximum and significantly higher grain yield (4244 kg/ha) of rice.

Email

upasani.ravikant@gmail.com

Address

Department of Agronomy, Birsa Agricultural University, Kanke, Ranchi (Jharkhand)
Distribution of weed flora of Indian mustard in Haryana
S.S. Punia, Dharambir Yadav, Amrit Pal Brar, Ramesh Yadav and Yash Pal Malik
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-15 | Volume: 42 Page No:70-72 |
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Abstract:

A Survey of weed flora of Indian mustard (Brassica juncea L.) in south-western Haryana conducted during 2004-05 revealed that a total of 29 species were found to infest mustard fields, out of which 3 were grassy, 26 were broadleaf weeds. Asphodelus tenuifolius Chenopodium album, Melilotus indica, Trigonella polycerata, C. murale, Cynodon dactylon, Orobanche aegyptiaca, Carthamus oxycantha, Avena ludoviciana and Convolvulus arvensis were found highly associated with mustard crop in all districts. Asphodelus tenuifolius was the dominant weed in all districts except Hisar where relative density (R.D.) of C. album was more. Malwa parviflora a robust dicotyledonous weed which was considered to be weed of non cropped areas has also shown its presence in Jind, Jhajjar, Hisar, Rohtak and Mewat districts. Infestation of parasitic weed Orobanche aegyptiaca was more in Bhiwani, Rewari, Mahender Garh, Jhajjar and Gurgaon districts where crop is grown in light textured soils( loamy sand) and irrigated by sprinkler.

Email

jagir@hau.ernet.in

Address

Department of Agronomy, CCS HAU, Hisar (Haryana)
Parthenium infestation and its estimated cost management in India
Sushilkumar and Jay G. Varshney
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-16 | Volume: 42 Page No:73-77 |
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Abstract:

Management of risk by a pest in agriculture is one of the major concerns of the decision makers and policy planners. There is always risk of introduction of alien weed seeds along with the imported cereals. This study revealed that how much cost may be involved in management of an alien introduced weed in due course mentioning example of Parthenium which got introduced into India in 1955 along with imported cereals. Initially Parthenium was a problem in waste and vacant land. Reports started to appear about its infestation in field crops after 1980. In general, about 35 million hectare land has been estimated to be infested with Parthenium currently. The increase of Parthenium infestation in crop area in recent past is alarming. For the management of Parthenium, two hand weeding or two chemical sprays are essentially required to get complete relief. It was estimated that 182000 or 18200 crores will be required per year to mitigate the problem by manual labour and Rs 119000 million or 11900 crores are required to manage the weed by Chemical method besides Rs 880 crores for treatment of health and about 10 crores on researchable issues related to biological control in particular and integrated management in general including people awareness programmes. Therefore, since 1955, it would have cost Rs 2067160 million or 206716 crores to manage the parthenium in India by manual labour The losses caused by this weed may be much higher if we take into consideration the cost involved in restoration of biodiversity and aesthetic value already lost due to Parthenium

Email

sknrcws@gmail.com

Address

National Research Centre for Weed Science, Maharajpur, Adhartal, Jabalpur( Madhya Pradesh)
Effect of chemical and crop establishment methods on weeds and yield of rice and their residual effects on succeeding wheat crop
Jai Kumar, Anil Kumar and B.C. Sharma
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-17 | Volume: 42 Page No:78-82 |
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Abstract:

A field experiment was conducted on sandy loam soil at Research Farm of SKUAST-J, Chatta, Jammu during the years 2006 and 2007 to study the effect of weed management and crop establishment methods on weeds and grain yield of rice as well as residual effect of treatments (applied to rice) on weeds and yield of wheat. There was severe competition between Echinochloa crusgalli and Echinochloa colona with rice and between broad leaf weeds and wheat. Phalaris minor infestation was lower during the experiment. Among weed management methods, maximum yield of rice ( 4256 kg/ha and 4393 kg/ha) during 2006 and 2007, respectively was recorded in the treatment where mechanical hoeing using conoweeder (at 15 and 30 DAT) was done during the first and second years of study. Fenoxaprop-p-ethyl (0.06 kg/ha, 20 DAT) + 1 HW at 30 DAT, metasulfuron methyl + chlorimuron ethyl (0.004 kg/ha, 20 DAT) + 1 HW at 30 DAT and fenoxaprop-p-ethyl (0.06 kg/ha, 20 DAT) and metasulfuron methyl + chlorimuron ethyl (Almix 0.004 kg/ha, 20 DAT) were the next best treatments. However, metasulfuron methyl + chlorimuron ethyl (0.004 kg/ha) was found to be more effective against broad leaf weeds and very little to sedges, hence failed to control major grassy weeds during the experiment. Among the establishment methods of rice, conventional and system of rice intensification (SRI) methods were at par with respect to grain and straw yield. The residual effect of treatments (applied to rice) was not well pronounced on weed population, weed dry matter accumulation by weeds and yield of wheat during both the years. Under wheat establishment methods, the two tillage systems did not produce significant variation with respect to total weed population, weed dry matter accumulation and grain yield. However, conventional tillage exhibited a marginal edge over zero tillage during both the years.

Email

anillau@gmail.com

Address

Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu (Jammu & Kashmir)
Efficacy of haloxyfop, a post-emergence herbicide on weeds and yield of soybean
V. Pratap Singh, S.P. Singh, A. Kumar, Neeta Tripathi and R.C. Nainwal
Full length articles | DOI: IJWS-2010-42-1&2 Supplymentary-18 | Volume: 42 Page No:83-86 |
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Abstract:

A field experiment was conducted at G.B. Pant University of Agriculture & Technology, Pantnagar, Uttrakhand to evaluate the bio-efficacy of haloxyfop (10 EC), a post-emergence herbicide for weed control in soybean during kharif of 2007 and 2008. The experiment was conducted in randomized block design by taking eight treatments comprising, haloxyfop (10 EC) at 75, 100 and 125 g/ha, quizalofop 50 g/ha, fenoxaprop 100 g/ha, hand weeding (twice at 30 and 45 DAS), weed free and weedy. To evaluate the bio-efficacy of herbicides against grassy weeds, the broad leaf weeds were removed at 20 days after sowing of crop. The experimental field was mainly infested with Eleusine indica, Digitaria sanguinalis, Eragrostis japonica and Brachiaria species. Haloxyfop 100 g/ha was found effective when applied as post emergence to grassy weeds as compared to other treatments. This dose was found at par with haloxyfop 125 g/ha and better than Haloxyfop 75 g/ha. There was no phytotoxic effect on the crop due to haloxyfop. Untreated plot recorded 43 and 47% lower grain yield respectively in 2007 and 2008, as compared to weed free treatment. Application of fenoxaprop and quizalofop recorded comparable weed density with haloxyfop at 100 and 125 g/ha during the years.

Email

vpratapsingh@gmail.com

Address

Department of Agronomy, G.B. Pant University of Agriculture & Technology, Pantnagar (Uttrakhand)
Influence of irrigation schedules based on IW:CPE ratios and herbicidal weed control in isabgul
J.R. Parmar, M.V. Patel, J.J. Patel, A.B. Parmar and S.N. Shah
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-19 | Volume: 42 Page No:87-90 |
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Abstract:

Application of isoproturon was most effective for the control of all weeds, which resulted 99.32% weed control efficiency and 49.0% higher mean seed yield over unweeded control. The higher water use efficiency (WUE) (3.61 kg/ha mm) was observed under 0.4 IW:CPE ratio and higher net return (Rs/ha 28904) were obtained under the treatment combination (0.4 IW:CPE ratio and application of isoproturon 0.5 kg/ha as pre-emergence). The interaction effect of irrigation schedule and herbicidal weed control practices was found non-significant in some cases

Email

janakagri@gmail.com

Address

Department of Agronomy, Anand Agricultural University, Anand (Gujarat)
Identification of threshold level of horse purslane in irrigated cowpea
C. Chinnusamy, A. Senthil, G. Prabu Kumar and N.K. Prabhakaran
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-20 | Volume: 42 Page No:91-94 |
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Abstract:

A field experiment was conducted during kharif 2007 at Tamil Nadu Agricultural University, Coimbatore to study the effect of different densities of Trianthema portulacastrum on growth and yield of cow pea. Plant height, leaf area and dry matter production of cow pea was reduced with increase in weed density from 0 to 64 weeds/m2 in all growth stages. The infestation of 16 weeds/m2 of Trianthema portulacastrum significantly decreased the dry matter production of cow pea (36.3 g/plant) compared to zero weeds/m2 (64.5 g/plant). The maximum yield reduction (34.8%) was observed with 64 weeds/m2. It was concluded that the population of 8 weeds/m2 of T. portulacastrum is the threshold value for cow pea

Email

chinnusamy@hotmail.com

Address

Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore (Tamil Nadu)
Performance evaluation of different weeding tools in maize
S. Shekhar, S. Chandra and D.K. Roy
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-21 | Volume: 42 Page No:95-97 |
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Abstract:

An experiment was conducted to evaluate the field performance of power weeder for interculturing operation in maize crop (Zea mays L.) to compare the cost of operation of power weeder in maize vis-a-vis grubber, wheel hoe and 'Khurpi' as control treatment. Power weeder having the higher field capacity (0.067 ha/hr) was found most efficient tool for weeding, particularly in view of time taken in operation followed by the wheel hoe (0.009 ha/hr), grubber (0.008 ha/hr) and 'Khurpi' (0.002 ha/hr). The highest field efficiency was attained in case of 'Khurpi' (94.73%) followed by wheel hoe (90.54%), grubber (84.40%) and power weeder (76.39%). The highest weeding efficiency (99.44%) was recorded in treatment 'Khurpi' followed by grubber (96.8%), wheel hoe (94.64%) and power weeder (89.8%). The plant injury was highest under power weeder (1.94%) followed by wheel hoe (1.01%), grubber (0.76%) and 'Khurpi' (0.46%). The cost of operation of 'Khurpi' was maximum (Rs. 4051/ha) followed by power weeder (Rs. 1350/ha), grubber (Rs. 1158/ha) and wheel hoe (Rs. 1152/ha). In spite of the marginal higher cost of operation of power weeder over other tools, power weeder ensures timeliness weeding in operation than other weeding tools.

Email

dr_dhirendra_krroy@yahoo.com

Address

Rajendra Agricultural University, Bihar, Pusa, Samastipur (Bihar)
Efficacy of new herbicides in kharif pigeonpea under south Saurashtra condition
Babulal Meena, B.K. Sagarka and R.R. Pisal
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-22 | Volume: 42 Page No:98-100 |
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Abstract:

Panicum colonum, Celosia argentea, Commelina benghalensis, Eragrostis major, Cyperus rotundus and Digera arvensis were the dominant weeds in pigeonpea. Integration of pendimethalin as preemergence, quizalofop ethyl as post-emergence and oxadiargyl as pre-emergence with one hand weeding and one interculture operation at 40 days after sowing (DAS) proved effective in reducing total weed density and dry weight of weeds. The maximum growth parameters, yield attributes and yield were significantly recorded under weed free condition which was closely followed by pendimethalin 900 g/ha as pre-emergence with one hand weeding and one inter-culturing at 40 DAS, quizalofop ethyl 40 g/ha as post-emergence with one hand weeding and one interculturing at 40 DAS and oxadiargyl 90 g/ha as pre-emergence with one hand weeding and one interculturing at 40 DAS. Chemical analysis of plant indicated that weed free treatment gave maximum N, P and K uptake in grain as well as in stover. Integration of pendimethalin, quizalofop ethyl and oxadiargyl with one hand weeding and one interculturing were found at par with weed free. The maximum net return was acquired under pendimethalin 900 g/ha as pre emergence with one hand weeding and one interculturing at 40 DAS closely followed by, weed free, quizalofop ethyl 40 g/ha as post emergence with one hand weeding and one interculturing at 40 day after sowing and oxadiargyl 90 g/ha as pre emergence with one hand weeding and one interculturing at 40 DAS.

Email

rrpagri@gmail.com

Address

Department of Agronomy, Junagadh Agricultural University, Junagadh (Gujarat)
Studies of weed control efficiency by application of post-emergence herbicides in soybean in Chhattisgarh plain
A. Pradhan, S.S. Kolhe and V. Singh
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-23 | Volume: 42 Page No:101-103 |
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Abstract:

Weeds infestation is very common in soybean which can reduce the yield potential drastically under kharif crop. It is two dimensional crop containing protein and oil. The weeds were rampant if they would not be controlled at proper time. To overcome the weeds problem of soybean, the study was carried out comprising different herbicides alone and in combination. The post-emergence application of lactofen 120g/ha + propaquizafop 60 g/ha was found having higher weed control efficiency with higher grain yield. All the recorded weed flora were found with reduce dry matter accumulation by combined application of herbicides rather than alone application

Email

adi_197753@rediffmail.com

Address

S.G. College of Agriculture & Res. Station, Jagdalpur, (Chhattisgarh)
Impact of tillage and weed control practices on weed flora and yield of wheat in direct seeded rice-wheat cropping system
Deepika Tiwari and M.L. Kewat
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-24 | Volume: 42 Page No:104-106 |
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Abstract:

A field experiment was conducted during rabi 2007-08 at NRC-Weed Science, Jabalpur (M.P.) to assess the effect of tillage and weed control practices on weed flora and yield of wheat in direct seeded rice-wheat cropping system. Yields were not influenced by any of the tillage packages adopted in wheat. But chemical weed control (clodinafop 0.060 fb 2,4-D 0.50 kg/ha) or integrated weed management practice (IWM) (clodinafop 0.060 fb 2,4-D 0.50 kg/ha + 1 HW at 40 DAS) after all the tillage packages increased grain and straw yields of wheat compared to weedy check plots. IWM practice (clodinafop 0.060 fb 2,4-D 0.50 kg/ha + 1 HW at 40 DAS) produced significantly higher grain yield of wheat than chemical control alone (clodinafop 0.060 fb 2,4-D 0.50 kg/ha). benefit per rupee of investment was higher in plots receiving clodinafop fb 2, 4-D in zero tilled wheat after conventional tillage in rice as well as IWM in wheat under zero tilled wheat after zero tillage in rice. Zero tilled wheat after zero tillage in rice had lower weed density and dry weight of weeds than other tillage (clodinafop 0.060 fb 2,4-D 0.50 kg/ha + 1 HW at 40 DAS) packages adopted in wheat after rice. Similarly post-emergence application of clodinafop 0.060 fb 2,4-D 0.50 kg/ha or integrated weed management in wheat, was found effective in curtailing the population including dry weight of dominant grassy and dicot weeds.

Email

tiwarideepika16@yahoo.com

Address

Department of Agronomy, JNKVV, Jabalpur (Madhya Pradesh)
Germination and density of weeds as influenced by waste water irrigation in wheat
P.J. Khankhane and Jay G. Varshney
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-25 | Volume: 42 Page No:107-108 |
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Abstract:

The impact of waste water irrigation on weeds in wheat was studied during rabi season of 2008. It was observed that higher weed density was recorded in waste water irrigated sites as compared with tubewell water. The effect of untreated drain water was subsequently tested on major weed such as Avena ludoviciana in lab. The results revealed that the drain water increased the weed germination and promoted the shoot and root length of A. ludoviciana in wheat.

Email

pjkhankhane@yahoo.com

Address

Directorate of Weed Science Research, Maharajpur, Jabalpur (Madhya Pradesh)
Studies on the threshold values of horse purslane in onion
C. Chinnusamy, A. Senthil, J. Bhuvaneswari and N.K. Prabhakaran
Short communications | DOI: IJWS-2010-42-1&2 Supplymentary-26 | Volume: 42 Page No:109-111 |
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Abstract:

A field investigation was carried out during rabi 2007 at Tamil Nadu agricultural University, Coimbatore to evaluate the threshold values of horse purslane (Trianthema portulacastrum) in onion. Increase in densities of T. portulacastrum increased the yield reduction linearly in onion crop. The maximum percentage of yield reduction was recorded with 64 weeds/m2 (54.8%) over the zero weeds/m2. The lowest yield reduction was with 4 weeds/m2 (8.8%) followed by 8, 16, 32 weeds/m2 ( 27.1, 38.61, 46.38% respectively). It is evident that a density of 4 weeds/m2 was the threshold value of Trianthema portulacastrum for onion crop to avoid significant yield reduction.

Email

chinnusamy@hotmail.com

Address

Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore (Tamil Nadu)

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