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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- 51 | Issue-1 (Jan-Mar) | Year 2019

Energy budgeting and economics of weed management in dry direct-seeded rice
P. Nagarjun, G.N. Dhanapal, M.T. Sanjay, S.B. Yogananda and R. Muthuraju
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00001.7 | Volume: 51 Page No:1-5 |
Address & Email | Article preview | View PFD | Download

Abstract:

A field experiment was conducted at Main Research Station, Hebbal, Bengaluru during Kharif 2016 and Kharif 2017 to study the effect of different herbicide combinations and weed management methods on yield, energetics and economics of dry direct-seeded rice. The experiment consisted of 12 treatments and replicated thrice in RCBD design. Among various weed management treatments hand weeding at 20, 40 and 60 DAS recorded significantly highest paddy grain and straw yield in hand weeding at 20, 40 and 60 DAS (5.50 and 7.22 t/ha, respectively) and found at par with application of bensulfuron-methyl + pretilachlor as pre-emergence fb bispyribac-sodium (5.39  and 7.16 t/ha, respectively). Weedy check recorded significantly lowest yield (1.40 and 2.32 t/ha, respectively). Among the various herbicide combinations, sequential application of bensulfuron-methyl + pretilachlor as pre-emergence fb bispyribac-sodium was found to be the most energy and economically efficient weed management strategy in dry direct-seeded rice and had maximum value of total output energy (169090 MJ/ha), net energy returns (157444 MJ/ha), energy use efficiency (14.52), net returns (` 59,276/ha) and benefit cost ratio (2.93).

Email

nagarjunp009@gmail.com

Address

Department of Agronomy, University of Agricultural Sciences, GKVK, Bengaluru, Karnataka 560 065
Weed management effect to increase grain yield in dry direct-seeded rice
Y.M. Ramesha, S.R. Anand, D. Krishnamurthy and Manjunatha Bhanuvally
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00002.9 | Volume: 51 Page No:6-9 |
Address & Email | Article preview | View PFD | Download

Abstract:

An experiment was conducted during Kharif 2016 and 2017 at Agricultural Research Station, Dhadesugur, University of Agricultural Sciences, Raichur, Karnataka, India, to study the bio-efficacy of weed control practices on weeds and grain yield of dry-seeded rice. The dominant grassy weeds in fields were Echinochloa sp. Panicum repens, Cynodon dactylon, Bracharia mutica, Digitarias sanguinalis, Commelina communis and Leptochloa chinensis. Broad-leaf weeds were Eclipta alba, and Ludwigia parviflora and Cyperus sp. as sedge. Results revealed that, pre-emergence application of pretilachlor + pyrazosulfuron-ethyl (600 + 15 g/ha) recorded significantly lower weed dry weight at 15, 30 and 45 DAS during Kharif 2016 and 2017, higher weed control efficiency at 15, 30 and 45 days after sowing (DAS) (82.6, 80.2 and 80.6% during Kharif 2016 and 82.1, 82.7 and 80.2%, respectively during Kharif 2017, respectively) and higher rice grain yield (4.92 and 4.98 t/ha during Kharif 2016 and 2017, respectively) and which was at a par with twice hand weeding at 20 and 40 DAS.

 

Email

rameshaym@gmail.com

Address

Agricultural Research Station (University of Agricultural Sciences), Dhadesugur Karnatka 584 167, India
Penoxsulam influence on weed complex and productivity of transplanted rice and its residual effects in rice-wheat cropping system
Dharam Bir Yadav, Narender Singh, Anil Duhan, Ashok Yadav and S.S. Punia
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00003.0 | Volume: 51 Page No:10-14 |
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Abstract:

Field experiments were conducted to evaluate the bio-efficacy of penoxsulam 2.67% w/w (2.5% w/v) OD applied as post-emergence (PoE) in transplanted rice and its residual effect in succeeding wheat crop at CCS Haryana Agricultural University, Regional Research Station, Karnal. Penoxsulam 22.5 g/ha reduced the density (0.0 to 0.7/m2) and dry weight (0.0 to 6.3 g/m2) of grassy weeds during 2011 and 2012 and was similar to weed free check. Penoxsulam at 22.5 g/ha resulted in similar dry weight of grassy and broad-leaf weeds with all other herbicidal treatments, and was superior to bispyribac-sodium 20 g/ha in controlling grassy weeds during 2012 and bispyribac-sodium 20-25 g/ha in controlling broad-leaf weeds during both the years. It provided almost complete control of sedges. The grain yield under penoxsulam 22.5 g/ha (5.68 t/ha in 2011 and 6.89 t/ha in 2012) was at par with its higher dose (25 g/ha) and more than its lower dose (20 g/ha). It also resulted in net returns (` 31921-55372/ha) and B:C ratio (2.03-2.68) almost similar/higher to recommended post-emergence herbicides. Weeds growing throughout the crop season reduced the grain yield of rice to the tune of 37.5 and 43.4% during 2011 and 2012, respectively. Penoxsulam 22.5 g/ha also performed well against weed complex in adaptive trials at farmers’ fields during Kharif 2017. There was no phyto-toxicity of penoxsulam even up to 50 g/ha on transplanted rice crop and also there was no residual phyto-toxicity on the succeeding wheat during 2011-12 to 2013-14. It also did not leave any detectable residual carry-over at harvest in soil, straw and rice grain when applied up to 45 g/ha.

Email

dbyadav@gmail.com

Address

CCS Haryana Agricultural University, Hisar, Haryana 125 004, India
Effect of crop intensification and establishment techniques on weed infestation under different cropping system
Indu Bala Sethi*, Rohitashav Singh, V.K. Singh, Sumit Chaturvedi, Ajit Pratap Singh, Dushyant Prabhakar and Jodh Pal Singh
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00004.2 | Volume: 51 Page No:15-22 |
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Abstract:

The field experiment was conducted during 2015-16 and 2016-17 at Norman E. Borlaug Crop Research Center, Pantnagar G.B Pant University of Agriculture & Technology, Pantnagar, U.S. Nagar (Uttarakhand) India, to study the crop intensification and establishment techniques influence on weed management under irrigated rice-wheat system. The experiment was laid out in a randomized block design with nine treatments and replicated thrice. The nine cropping sequence were evaluated for productivity. Density of these weeds was significantly affected by crop intensification and establishment techniques during both the years. In Kharif season, total weed density was recorded significantly lower in treatment rice (TPR) – wheat while the highest total weed density was recorded in rice (DSR) –vegetable pea – maize grain treatment during both the years. Weed density as affected by crop rotations maize (B) (cob + fodder) + cowpea (B) + sesbania (F)-2:1:2 - vegetable pea (B) + toria (F)-3:1 – groundnut (B) + mentha was found to be the the superior in terms of weed suppression.

Email

indubalasethia2012@gmail.com

Address

G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand 263 145, India
Effect of tillage and weed control in direct-seeded rice-wheat cropping system
Sushma Saroj Surin, A.B. Ekka, M.K. Singh and R.R. Upasani
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00005.4 | Volume: 51 Page No:23-26 |
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Abstract:

The present experiment was carried out in a split-plot design with four tillage practices in the main plot and three methods of weed control practices in sub plot with four replications at agronomical research farm of Birsa Agricultural University, Ranchi during 2009-10 to 2010-11 to find out the effective tillage methods adopted in direct-seeded rice and wheat with different weed control methods. Results revealed that in direct-seeded rice density of grassy, broad-leaved weeds and sedges accounted for 23.1, 59.2 and 17.7% and in wheat, grassy and broad-leaved weeds accounted for 5.7 and 94.3% respectively of total weed density. Conventional tilled plots had more number of weeds per unit area as compared to zero tilled. Conventional tilled both rice and wheat produced 25.3, 11.9 and 11.4% higher mean rice equivalent yield compare to mean yield due to other tillage combination. Two hand weeding (20 and 40 DAS for rice and 25 and 50 DAS for wheat) and application of recommended herbicides being at par gave higher rice equivalent yield than weedy check.

Email

sushmasarojsurin5@gmail.com

Address

Department of Agronomy, Birsa Agricultural University, Ranchi, Jharkhand 834 006, India
Control of broad-leaved weeds in wheat under eastern sub-Himalayan plains
B. Mitra, R. Barman and T. Mondal
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00006.6 | Volume: 51 Page No:27-31 |
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Abstract:

A study was undertaken during winter seasons of 2016-17 and 2017-18 at Uttar Banga Krishi Viswavidyalaya, Coochbehar, West Bengal to assess the comparative efficacy of various herbicides and to identify the effective herbicides for controlling broad-leaved weed flora in wheat. The experiment was laid out in a Randomized Block Design (RBD) with eleven herbicides combination viz. halauxifen-methyl ester+ florasulam 40.85% WG + polyglycol; metsulfuron methyl 20 WG + surfactant; carfentrazone 40 DF; 2,4-D Na 80 WP; 2,4-D E 38 EC; metsulfuron + carfentrazone +surfactant; 2,4-D-Na + carfentrazone; 2,4-D E + carfentrazone , halauxifen-methyl + florasulam+ carfentrazone + surfactant including a weedy check and weed free treatment. It was revealed that Polygonum alone constituted almost 72% of the total broad leaved weed population in both the years. Among the herbicidal treatments, metsulfuron + carfentrazone + surfactant recorded significantly lesser weed population (10.0 and 2.3/m2 during 30 and 60 days after spraying of post-emergence herbicides, respectively) vis-à-vis weed dry weight (11.2 and 4.5 g/m2 during 30 and 60 days after spraying of post-emergence herbicides, respectively) . This combination also recorded the highest broad leaf weed control efficiency (90.1 and 99.0% at 30 and 60 days after spraying, respectively) with the lowest weed index 6.0.The new molecule halauxifen-methyl ester + florasulam in combination with carfentrazone recorded 88.1 and 94.0% weed control efficiency. It was noted that Polygonum was killed by halauxifen-methyl ester + florasulam 40.85% WG + polyglycol, but it could not control Physalis minima, the second most important weed after Polygonum. Weed free treatment recorded significantly higher grain yield (5.39 t/ha) followed by metsulfuron + carfentrazone + surfactant treated plots (5.04 t/ha), the best performed treatments among various post-emergence herbicides combination used in the experiment. According to the linear regression, wheat crop was likely to produce very poor grain yield (less than 1.50 t/ha) when weed biomass exceeds 400 g/m2.

Email

bipmitra@yahoo.com

Address

Uttar Banga Krishi Viswavidyalaya, Pundibari, Coochbehar, West Bengal 736 165, India
Comparative study on weed control efficacy of different pre-and post-emergence herbicides in Kharif maize
Mahesh Kumar and Jasbir Singh Chawla
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00007.8 | Volume: 51 Page No:32-35 |
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Abstract:

A field experiment was conducted at Research Farm of Punjab Agricultural University, Ludhiana during Kharif 2016 and 2017 to find out the best chemical weed management practices in maize. Ten treatments were evaluated in a randomized block design with three replications. Treatments consisted of pre-emergence (PE) and post-emergence (PoE) herbicide applications along with weed-free check and weedy check. Experimental results indicated that pendimethalin 1.0 kg/ha as PE fb atrazine 0.75 kg/ha + 2,4-D amine 0.4 kg/ha at 25 DAS as PoE recorded lowest weed index (4.9 and 3.9% respectively, during Kharif 2016 and 2017) followed by treatment atrazine 1.5 kg/ha as pre-emergence fb tembotrione 120 g/ha as PoE at 25 DAS (5.6 and 4.4%, respectively). Grain yield was significantly higher (6.71 and 6.67 t/ha, respectively) with treatment weed-free than all other treatments however, it was statistically at par with treatment pendimethalin 1.0 kg/ha as PE fb atrazine 0.75 kg/ha + 2,4-D amine 0.4 kg/ha at 25 DAS as PoE (6.38 and 6.41 t/ha, respectively during Kharif 2016 and 2017) followed by atrazine 1.5 kg/ha as PE fb tembotrione 120 g/ha as PoE at 25 DAS (6.34 and 6.37 t/ha,  respectively).

Email

maheshkumarvats@pau.edu

Address

Department of Plant Breeding and Genetics, Punjab Agricultural University Ludhiana, Punjab 141004, India
Weed dynamics, growth pattern, yield and economics of linseed under different weed management practices
Sanjay K. Dwivedi* and C.S. Puhup
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00008.X | Volume: 51 Page No:36-39 |
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Abstract:

A field experiment was conducted during Rabi season of 2016-17 and 2017-18 at Research cum Instructional Farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh to study weed dynamics, growth pattern, yield and economics of Linseed (Linum usitatissimum L.) under weed management practices. The experiment consisted ten treatments replicated thrice using the linseed variety ‘RLC-92’.The plant population, plant height and number of branches varied significantly among different weed management treatments. Linseed seed yield was significantly higher (1.94 t/ha) with hand weeding twice, which was statistically at par with isoproturon + metsulfuron-methyl (1 kg + 4 g/ha) post-emergence treatment (PoE), metsulfuron-methyl (4   g/ha) PoE and pendimethalin (1 kg/ha) pre-emergence treatment (PE) followed by (fb) metsulfuron-methyl (4 g/ha) PoE. Density and biomass of weed was the  lowest and weed control efficiency was higher with hand weeding twice 21 and 45 days after seeding (DAS) followed by isoproturon + metsulfuron-methyl (1 kg + 4 g/ha) PoE and metsulfuron-methyl (4 g/ha) PoE. The gross return was maximum with hand weeding twice 21 and 45 DAS while net return was maximum with isoproturon + metsulfuron-methyl (1 kg + 4 g/ha) PoE. The highest benefit: cost ratio (3.91) was recorded with metsulfuron-methyl (4 g/ha) PoE due to higher seed yield coupled with lower cost of chemical treatment.

Email

sanjayigau@gmail.com

Address

Department of Agronomy, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur 492 012
Terpenoid from essential oil of Cyperus scariosus and its biological activity on chilli
Komalpreet Kaur*, Divya Utreja, Pooja Sharma, Seema Bedi and I.S. Grewal
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00009.1 | Volume: 51 Page No:40-44 |
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Abstract:

Allelopathic effect of the essential oil of wild sedge- Cyperus scariosus, it’s polar and non-polar fractions, isolated compound-cyprene and its derivatives: cyprene epoxide and cyprene alcohol were screened for germination studies on chilli (Capsicum annuum L.). Chilli is a vegetable crop in Punjab which is having trouble shooting problem during its germination stage, which leads to the interruption in growth curve of the seedling. Treatment of seeds with oil, its fractions and its derivatives lead to stimulatory effect (approx. 75-100%) in terms of primary root and shoot length with collateral increase in dry and fresh weight of seedlings over control at 20 days. Oil and its polar fraction found to be the most effective in enhancing the root length and shoot length, and acts as potent plant growth regulator at the concentration of 0.5 µg/mL.

Email

komal-cm@pau.edu

Address

Department of Chemistry, Punjab Agricultural University, Ludhiana, Punjab 141 004
Weed management in stone fruit nectarine orchard with inorganic mulches and herbicides
Sumeet Sharma* and D.P. Sharma
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00010.8 | Volume: 51 Page No:45-49 |
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Abstract:

The study has assessed the efficacy of different orchard floor management treatments on weed management in ‘Snow Queen’ nectarine. The experiment was carried out in a randomized block design consisted of seven treatments having four replicates during the years 2016 and 2017. It has been found that the different orchard floor management treatments had a significant effect on weed density, weed fresh and dry weight, fruit quality and fruit yield of nectarine. All inorganic mulches (black polythene mulch, bicolour polythene mulch and nylon mulch mat) showed their superiority and provide complete elimination of weeds. Bicolour polythene mulch recorded maximum fruit size, weight, volume and TSS, whereas black polythene mulch recorded maximum fruit yield during both the years of study.

Email

sumeetpomology@gmail.com

Address

Department of Fruit Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh 173 230, India
Weed management effects on cotton growth and yield
K. Nalini* and C. Chinnusamy
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00011.X | Volume: 51 Page No:50-53 |
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Abstract:

Field experiments were conducted during winter seasons of 2008-09 and 2009-10 at Eastern Block Farm, Tamil Nadu Agricultural University, Coimbatore to study the efficiency of new formulation of pre-emergence herbicide pendimethalin 38.7% on growth and development of cotton with better weed management in a cost effective manner, under irrigated condition. Pendimethalin 38.7% was tried in four different doses, viz. 1.5, 2.0, 2.5 and 4.0 kg/ha and it was compared with pendimethalin 30% 1.0 kg/ha, early post-emergence herbicide trifloxysulfuron, power weeders and hand weeding. The pre-emergence application of pendimethalin (38.7%) at 2.0 kg/ha at 3 days after seeding (DAS) followed by hand weeding and earthing at 45 DAS did not show any phytotoxic effect on cotton and recorded lower weed density and biomass with increased the seed cotton yield by about 41.5% over unweeded control and higher net returns.

Email

naliniagr@gmail.com

Address

Department of Agronomy, TNAU, Coimbatore, Tamil Nadu 641 003, India
Biology of weed flora, weed dynamics and weed management in different fodder crops
Pijush Kanti Mukherjee*, Putan Singh, Shobha Sondhia1 and R.L. Sagar
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00012.1 | Volume: 51 Page No:54-61 |
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Abstract:

Appraisal has been made at the fodder farm of ICAR-IVRI, Izatnagar campus by following standard procedure adopted by AICRP on Weed Management (ICAR) during 2015 and 2016. Results revealed that Trianthema portulacastrum and Trianthema monogyna were widely distributed in the fodder farm during summer and rainy seasons. It produced flower continuously up to second fortnight of November with 224 to 504 seeds/plant and multiplied both by seeds (More than 80% germination of current seeds) and fragmented plant parts. Another broad-leaved weed Celosia argentea preferred the growing condition of fodder sorghum and it produced 1,716 to 3,496 seeds/plant. The broadleaved weed Coccinia grandis was associated with fodder maize and sorghum, and produced 2,934 to 4,428 seeds/plant. Numerous seed production capacity of these weeds supported its high profile emergence. Among the other weeds the grasses were widely distributed, whereas the sedges were appeared in patches. Three major broad-leaved weeds Coronopus didymus, Rumex dentatus and Cichorium intybus appeared during 1st, 2nd, 3rd and 4th cutting of berseem during winter season, respectively. The weeds Trianthema portulacastrum, Trianthema monogyna, Coccina grandis, Rumex dentatus and Cleome viscosa had shown the character of endozoochory dissemination. Uniform distribution of rainfall during 2015 caused rapid infestation of broad-leaved weeds (Trianthema sp., Coccinia grandis, Celosia argentea) whereas huge down pour within short period during monsoon season of 2016 caused submergence which, in turn, reduced infestation of broad-leaved weeds and side by side increased invasion of grasses. Mixed cropping of fodder maize (Variety ‘African Tall’) and fodder cowpea (Variety ‘Bundel Lobia 2’) controlled Trianthema sp. and maximum green fodder yield was obtained at 55 days after sowing beyond that cowpea showed competitive effect on maize. Turning the land from fodder sorghum to cowpea minimised distribution and seed production capacity of Celosia argentea. Mixed cropping of berseem (Variety ‘Wardan’) + gobhi sarson (Brassica napus var. napus) and berseem (Variety ‘Wardan’) + rye grass (Variety ‘Makkhan Grass’) reduced infestation of Coronopus didymus. Growing of dual purpose (grain-cum-green fodder) wheat variety ‘VL Gehun 829’ reduced infestation of resistant biotype of Phalaris minor.

Email

pkm_agronomy@yahoo.co.in

Address

ICAR-Indian Veterinary Research Institute (IVRI),Izatnagar, Bareilly, Uttar Pradesh 243 122, India
Assessment of soil fertility using Ageratum conyzoides in mid-hills of Arunachal Pradesh
V.K. Choudhary
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00013.3 | Volume: 51 Page No:62-66 |
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Abstract:

Growers of the hill ecosystem, assess soil fertility by visualizing the luxuriant growth of weeds (Ageratum conyzoides). Since a long time, they have been using this as a soil fertility indicator as indigenous knowledge. Thus, the present study was conducted to quantify weed density, crop performance, soil fertility status and correlate with growers view by enquiring from respondents. A total of 78 respondents were interviewed and their responses were filled in unorganized questioners. The major parameters viz. weed density, rice grain yield and chemical properties of soil were considered in this study. It was found that growers of the area have strong indigenous perceptions for assessment of soil fertility. Higher density, better rice grain yield and chemical properties of soils were found better indicator of soil fertility as per grower’s perceptions.

 

Email

ind_vc@rediffmail.com

Address

ICAR-Research Complex for NEH Region, Basar, Arunachal Pradesh 791 101, India
Utilization of water hyacinth as livestock feed by ensiling with additives
V.P. Indulekha, C. George Thomas and K.S. Anil
Research article | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00014.5 | Volume: 51 Page No:67-71 |
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Abstract:

Water hyacinth (Eichhornia crassipes (Mart.) Solms) is one of the most productive plants on earth, but it is also considered as the world’s worst aquatic weed. An experiment was carried out with the objective of utilizing it by converting to silage for its usage as animal feed. The quality and palatability of water hyacinth silage prepared with additives such as molasses, cassava powder, and rice bran were assessed. The   completely randomized design (CRD) with 12 treatment combinations and 3 replications, was used. The treatments included: combination of wilted and fresh water hyacinth with or without rice straw or guinea grass and using any of the additives such as molasses, cassava flour and rice bran.  Wilted water hyacinth plus cassava powder (10%), wilted water hyacinth plus rice straw (10%) plus cassava powder (10%), and wilted water hyacinth plus guinea grass (10%) plus cassava powder (10%) had good fodder quality due to low pH. The odour of these combinations was rated as either ‘good’ or ‘very good’. The quality of rice bran added silages was low in terms of pH, odour and palatability; although its nutritional quality was high.  Rice bran enhanced crude protein, crude fat and ash content of silages. Molasses ensured the quality of silage by lowering pH and enhancing intake. Cassava powder addition in general reduced the pH of the silage and enhanced the palatability of silage.

Email

indulka@gmail.com

Address

College of Horticulture, Kerala Agricultural University, Vellanikkara, Kerala 680 656, India
Herbicides for weed management in dry direct-seeded rice
N.V. Kashid*, V.T. Jadhav and Y.J. Patil
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00015.7 | Volume: 51 Page No:72-74 |
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Abstract:

A field experiment was conducted during the Kharif season of 2015 to 2017 for three years at Agricultural Research Station, Vadgaon Maval, Pune, Maharashtra to find out the efficacy of different weed control methods on dry direct-seeded rice and its economics. Pretilachlor 0.450 kg/ha as pre-emergence application (PE) at 2-3 days after sowing (DAS) followed by (fb) azimsulfuron 0.035 kg/ha as post-emergence application (PoE) at 25 DAS effectively managed weeds in dry-DSR and gave the higher grain yield (5.62 t/ha), net returns (` 82777/ha), higher B:C ratio (2.8) with lower weed index (2.78) and higher weed control efficiency (87.7%).

Email

kashidnv@gmail.com

Address

Agricultural Research Station, Vadgaon Maval, Pune, Maharashtra 412 106, India
Effect of herbicides to control weeds in wheat
R.S. Singh*, Raj Kumar, Manoj Kumar and Deepak Pandey
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00016.9 | Volume: 51 Page No:75-77 |
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Abstract:

Field experiments was conducted to study the effect of weed control methods on wheat (Triticum aestivum L.) during Rabi seasons of 2014-15 and 15-16 at Agronomy Research Farm of NDUAT, Kumarganj, Ayodhya (U.P.). Pre-emergence application of pendimethalin + metribuzin (1.0 + 0.175 kg/ha) being at par with weed free and pendimethalin (1.0 kg/ha) followed by sulfosulfuron (0.025 kg/ha) significantly reduced the density of weeds as compared to other treatments. Pre-emergence application of pendimethalin +  metribuzin (1.0 + 0.175 kg/ha) significantly increased all growth and yield contributing characters, viz. plant height, dry matter accumulation, spikelength, grains/spike obtained with weed free. Among different herbicidal treatments, maximum grain and straw yields were recorded under pendimethalin + metribuzin (1.0 + 0.175 kg/ha) (4.22 and 5.70 t/ha, respectively). However, the highest benefit: cost ratio was recorded in weed free (1.97) followed by pendimethalin + metribuzin (1.0 + 0.175 kg/ha) (1.91).

Email

dr.ravi.singh12@gmail.com

Address

Department of Agronomy, College of Agriculture, Narendra Deva University of Agriculture &Technology Kumarganj, Faizabad,Utter Pradesh 224 229, India
Promising post-emergence herbicides for effective management of broad-leaved weeds in soybean
A.U. Andhale* and D.K. Kathmale
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00017.0 | Volume: 51 Page No:78-80 |
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Abstract:

A field experiment was conducted during rainy (Kharif) seasons of 2013 and 2014 at Agriculture Research Station, Mahatma Phule Agricultural University, Kasbe Digraj, Sangli, Maharashtra. Significant weed density reduction was recorded with fluthiacet-methyl at increased application rates of 5 g/ha to 15      g/ha. Fluthiacet-methyl 15 g/ha + 0.25% NIS controlled broad-leaved weeds effectively. Biomass and total broad-leaved weed density were the lowest with fluthiacet-methyl 15 g/ha + 0.25% NIS. Weed control efficiency was higher (80.86%) with fluthiacet-methyl 15 g/ha + 0.25% NIS. Seed yield was the highest (1.91 and 1.93 t/ha during 2013 and 2014, respectively) in weed free plot followed by fluthiacet-methyl 15 g/ha + 0.25% NIS applied as post-emergence (2-5 leaf stage of weeds) with the highest B:C ratio.

Email

adinathpriya143@gmail.com

Address

National Agricultural Research Project, Agriculture Research Station, Mahatma Phule Agricultural University, Kasbe Digraj, Sangli, Maharashtra 416 305, India
Integrated weed management in soybean
V.T. Jadhav*and N.V. Kashid
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00018.2 | Volume: 51 Page No:81-82 |
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Abstract:

A field experiment was conducted during 2010 to 2012 for three years at Agricultural Research Station, Karad Maharashtra to find out the suitable integrated weed management method in soybean. Post-emergence application of quizalofop-ethyl at 0.05 kg/ha + chlorimuron-ethyl at 0.009 kg/ha at 15 days after seeding (DAS) + hand weeding at 30 DAS, recorded lowest weed biomass (38.1 g/m2) with higher weed control efficiency (62%) and lower weed index (8.0). The some treatment also recorded the highest seed yield and net returns with lower weed index (8.0) in soybean.

Email

vtj2009@rediffmail.com

Address

Agricultural Research Station, Vadgaon Maval, Pune, Maharashtra 412 106
Spacing and weed management influence on productivity and economics of sunflower
N. Meena*, M. Mohamed Yassin and M. Mohamed Amanullah
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00019.4 | Volume: 51 Page No:83-85 |
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Abstract:

Field experiment on economics and productivity of sunflower with response to spacing and weed management practices was conducted at Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, during rainy season of (Kharif) 2016 and 2017 with objective of checking the suitability of spacing for moment of power weeder. Experiment was laid out in strip plot design and replicated thrice. The treatment comprised of five horizontal factors as plant spacing and five vertical factors as weed management practices. The higher cost of cultivation was registered with spacing 90 × 15 cm among different spacing and increased in gross returns, net returns, B:C ratio, per day return and seed yield with the spacing 75 × 25 cm. Hand weeding twice at 15 and 30 DAS recorded the higher cost of cultivation, gross returns, per day returns and seed yield among the different weed management practices during the both years of experimentation. Results of two year experimentation revealed that increased in net returns with pendimethalin at 1 kg/ha followed by hand weeding at 30 DAS and higher B:C ratio was recorded with pendimethalin at 1 kg/ha followed by weeder at 30 DAS.

Email

meena3n@gmail.com

Address

Department of Agronomy, TNAU, Coimbatore, Tamil Nadu 641 003, India
Relative density of weeds and weed indices as influenced by weed control options in cotton
N. Varsha*, M. Madhavi, T. Ramprakash and K.B. Suneetha Devi
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00020.0 | Volume: 51 Page No:86-91 |
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Abstract:

Field experiments were conducted at Professor Jayashankar Telangana State Agricultural University, Rajendranagar during Kharif 2017 for the evaluation of efficacy different doses of diuron in both red and black soils.  The treatment consisted of test herbicides such as, diuron 80% WP at 0.5 kg/ha, 0.75 kg/ha and 1.0 kg/ha along with registered formulation of pendimethalin 38.7% CS at 677 g/ha, intercropping with green manure crop, mechanical weeding thrice at 20, 40, 60 DAS and unweeded control. The experiment was laid out in a randomised block design replicated thrice. The weed flora of the experimental field in red soil was dominated by Cynodon dactylon, Rottboellia exaltata, Parthenium hysterophorus, Trianthema portulacastrum and Commelina benghalensis. While in case of black soil, predominant flora was Cynodon dactylon, Cyperus rotundus, Parthenium hysterophorus, Euphorbia geniculata, Tridax procumbens, Cyanotis cristata, Digera arvensis and Celosia argentia. The treatments, mechanical weeding thrice at 20, 40 and 60 DAS, polymulch treatments reduced the weed growth in both red and black soils. Among the herbicides, diuron at 1.0 kg/ha fb pyrithiobac-sodium + quizalofop-ethyl in red soil and both diuron at 1.0 kg/ha and 0.75 kg/ha along with sequential application of herbicides reduced the density of weeds. Diuron could reduce the broad-leaved weeds and grasses except itch grass. Sedges are also could not be reduced by diuron. The lower values of weed persistence index was obtained with herbicidal treatments i.e., diuron at 1.0 and 0.75 kg/ha fb pyrithiobac-sodium + quizalofop-ethyl. The crop resistance index and treatment efficiency index were superior in case of polymulch and mechanical weeding thrice at 20, 40 and 60 DAS.

Email

nvarsha68@gmail.com

Address

Department of Agronomy, College of Agriculture, Prof. Jayashankar Telangana State Agriculture University, Rajendranagar, Hyderabad, Telangana 030
Performance evaluation of some selected weeding tools in faba bean
Bikash Sarkar*, A.K. Singh, Rakesh Kumar, R.B. Reddy, P.K. Sundaram, J.S. Mishra and B.P. Bhatt
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00021.2 | Volume: 51 Page No:92-94 |
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Abstract:

The field performance of different weeding tools/implements viz. khurpi (hand hoe), grubber, wheel hoe, and power weeder were carried out at the Institute Research Farm, ICAR-Research Complex for Eastern Region, Patna, Bihar. Results revealed that actual field capacity of 0.0046±0.002, 0.0086±0.0002, 0.0189±0.0003, 0.0696±0.003 ha/h had associated with khurpi, grubber, wheel hoe and power weeder, respectively. Khurpi had recorded the maximum weeding efficiency (98.9%) and lowest in case grubber (74%). Similarly, power weeder contributed to higher plant damage (1.94%). Operational of khurpi had recorded maximum (Rs.6793/ha). A reasonable amount of savings of weeding operation were observed using grubber, wheel hoe, and power weeder as compared to khurpi.

Email

bikas_sarkar2003@yahoo.com

Address

ICAR-Research Complex for Eastern Region, ICAR Parisar, P.O: B.V. College, Patna, Bihar 800 014, India
Intensity of Mikania micrantha in coffee and other plantations of Karbi Anglong district, Assam
Atiqur Rahman Bora, Jayanta Deka1, Iswar Chandra Barua1, Bijaya Barman
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00022.4 | Volume: 51 Page No:95-97 |
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Abstract:

In Assam, the coffee plantations are confined in Chirang, Karbi Anglong and Dima Hasao districts and also has the potentiality for expansion in the foot hill regions of lower Brahmaputra Valley and Hill agro-climatic zones of the state. Weed management is the biggest problem for coffee cultivation in the state and Mikania micrantha is one of the most problematic weeds in most of the coffee plantations. To quantify the infestation of the weed in and around coffee growing areas, a survey was conducted in five coffee plantations and 19 locations of other plantation crops as well as open forests covering an area of 355 km2 in Karbi Anglong district of Assam. M. micrantha infestation was negligible to low in coffee plantations, which received two rounds of manual weeding whereas, the infestation was moderate to high where only one manual weeding or no weeding was done. In open forest, the density of the weed was quite high. Among the coffee estates surveyed, the highest infestation of M. micrantha was observed in the estates surrounded by open forests and neglected other plantation crops which served as a good seed source for this weed.

Email

atiqurrb@gmail.com

Address

Regional Coffee Research Station, Coffee Board, Diphu, Assam 782 460, India
Nanoparticle effect on degradation of vanillic acid, a germination inhibiting dormancy factor present in Cyperus rotundus
N. Viji* and C.R. Chinnamuthu
Research note | DOI: http://dx.doi.org/10.5958/0974-8164.2019.00023.6 | Volume: 51 Page No:98-100 |
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Abstract:

Cyperus rotundus is one of the most invasive perennial sedge weed considered as the world’s worst weed. The tubers of the weed remain viable for more than three years and pass over the harsh weather period by preventing the germination of buds present in the tubers. Due to dormancy, the tubers may sustain in the soil for longer and interfere with the crops raised in the following season. Phenols are considered as the major factor of dormancy in Cyperus rotundus tubers. Among different phenolic acids, vanillic acid is dominated, found under long and continuous stress. Nanoparticles are capable to degrade the phenols. In order to confirm whether the nanoparticles have effect on degradation of phenol present in Cyperus rotundus, the dominant phenol present in the tuber i.e., vanillic acid was chosen. Experiment was conducted at the department of Nano Science and Technology, Tamil Nadu Agricultural University, Coimbatore to find the effect of different nanoparticles such as iron oxide, silver, titanium dioxide and zinc oxide on commercially available vanillic acid degradation during 2013-15. The maximum degradation of vanillic acid was observed with iron oxide nanoparticles at 25 mg i.e., 60.6% degradation compared to control. Titanium dioxide, zinc oxide and silver nanoparticles at 25 mg recorded the 54.5, 49.3 and 24.8% degradation, respectively.

Email

mathumitha08@gmail.com

Address

Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641 003, India

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