Prin ISSN 0253-8040
Online ISSN 0974-8164

Indian Journal of

Weed Science

Editorial Board

Chief Editor


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

&
Dr. Bhagirath Singh Chauhan
Hydarabad, INDIA
Email: b.chauhan@uq.edu.au
Dr. A.N. Rao
Hydarabad, INDIA
Mobile Number: +91 9440372165
Email: adusumilli.narayanarao@gmail.com

Editor- News Letter-Electronic


Dr. S.K. Guru
Pant Nagar, UK, INDIA
Mobile - +91 9411195441
Email- skguru123@yahoo.com

Editors

Dr. A.S. Rao
Mobile Number: 9959347340
Email: atlurisrao@gmail.com
Dr. Anil Duhan
Mobile - +91 9466051639
Email- a.duhan@rediffmail.com
Dr. Ashok Yadav
Mobile - +91 9416995523
Email- aky444@gmail.com
Dr. B. Duary
Mobile Number: +91 9434326193
Email: bduary@yahoo.co.in
Dr. C.R. Chinnamuthu
Mobile - +91 9442014373
Email- crchinnamuthu@yahoo.com
Dr. I.C. Barua
Mobile - +91 9435094326
Email- iswar_barua@yahoo.co.in
Dr. M.K. Singh
Mobile - +91
Email-
Dr. P. Janaki (Coimbatore)
Mobile Number: 9443936160
Email: janakibalamurugan@rediffmail.com
Dr. R. Poonguzhalan
Mobile Number: 9994556988
Email: poonguzhalan@yahoo.com
Dr. R.S. Chhokar
Mobile Number: 9416296262
Email: rs_chhokar@yahoo.co.in
Dr. V.S.G.R. Naidu (Rajahmundry)
Mobile - +91 8790819002
Email- naidudwsr@gmail.comm
Dr. Vijay Kumar Choudhary
Mobile - +91 9425244075
Email- ind_vc@rediffmail.com
Dr. Virender Sardana
Mobile Number: 9463747125
Email: virsardana@gmail.com
Dr. Yogita Gharde
Mobile - +91 9425412748
Email- yogitagharde@gmail.com

Overseas editors

Email: jpacific10@gmail.com
Email: amit.jhala@unl.edu
Email: asad.iags@pu.edu.pk
Email: zahoorganie11@huskers.unl.edu
Email: haider3993@gmail.com
Penoxsulam evaluation for weed control efficacy and increased rice yield
Author Name: T. Saranraj, P. Devasenapathy and Subbalakshmi lokanadhan
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00001.6 Page No:1-4
Volume: 49 2017 Full length articles
Keywords:

Rice, Soluble concentrate, Weed density,  Weed dry weight, Weed control efficiency       

Abstract:

Field experiments were conducted for two years at wetland farm, Tamil Nadu Agricultural University, during Kharif seasons of 2014 and 2015 (June to October) to evaluate the penoxsulam (21.7% SC) for weed control in rice. Based on two years data, it was found that pre-emergence application of penoxsulam 22.5 g/ha resulted in significantly lower total weed density, weed dry weight and higher weed control efficiency at all the intervals. Application of penoxsulam could keep the weed density and dry weight below the economic threshold level and increase grain yield of 5.21 and 5.04 t/ha was obtained in 2014 and 2015, respectively. Unweeded control accounted for lower grain yield and higher weed index of 48.7 and 60.8%, respectively.

Address: Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641 003
Email: tsaranrajagronomy@gmail.com
Rice productivity under different weed management and establishment methods
Author Name: Arunima Paliwal, V. Pratap Singh, Jai Prakash Bhimwal, Neeshu Joshi, S.P. Singh, Tej Pratap, S.K. Guru and A. Kumar
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00002.8 Page No:5-9
Volume: 49 2017 Full length articles
Keywords:

Bispyribac-sodium, Conventional tillage, Establishment method, Rice producivity, Sesbania, Zero tillage

Abstract:

Field experiment was conducted to find out alternative tillage practices with appropriate weed management opportunities to increase the yield potential of rice crop. Major associated weeds were Echinochloa colona, E. crus-galli, Leptochloa chinensis among grasses, Caesulia axillaris, Alternanthera sessilis, Ammania baccifera among broad-leaved weeds and Cyperus rotundus, C. iria, C. difformis and Fimbristylis miliaceae among sedges at 60 DAS.  Adoption of conventional transplanted rice (TPR) with Sesbania inclusion as green manure along with integrated approaches of weed management using bispyribac-sodium 20 g/ha supplemented with one hand weeding at 45 DAS was found effective and profitable alternative than conventional transplanted rice and hand weeding to attain higher productivity of rice crop. However, the benefit cost ratio was higher when the crop was grown under zero-till situation (ZTR) along with retention of crop (wheat) residues followed by Sesbania as brown manure due to less cost involved under zero-till situation.

Address: G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145
Email: arunima.28@rediffmail.com
Integrated weed management in direct-seeded rice
Author Name: Pratik Sanodiya and Manoj Kumar Singh
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00003.X Page No:10-14
Volume: 49 2017 Full length articles
Keywords:

Bispyribac-Na, Chlorimuron-ethyl, Direct-seeded rice, Economics, Integrated weed management

Abstract:

 A field investigation was conducted during Kharif season of 2014 and 2015 at Varanasi, Uttar Pradesh, to study the effect of integrated weed management on weed flora, yield and economics of direct seeded rice (Oryza sativa L.). Penoxsulam 35 g/ha at 10 DAS fb 1 hand weeding at 35 DAS reduced weed density of various weed flora, viz. Echinocloa colona (7.27%), Echinocloa crus-galli (6.58%), Cynodon dactylon (7.57%) among grasses; Cyperus iria (8.01%), Cyperus difformis (8.26%) and Fimbristylis miliacea (8.67%) among sedges and Ammannia baccifera (10.12%) and Caesulia axillaris (10.10%) among broad-leaved weeds besides other weeds (11.72%) in comparison to penoxsulam 35 g/ha at 20 DAS fb 1 hand weeding at 35 DAS. Penoxsulam 35 g/ha at 10 DAS fb 1 hand weeding at 35 DAS markedly improved growth attributes, viz. plant height, number of tillers/m2, dry matter accumulation, leaf area index and chlorophyll content at 60 DAS and yield attributes, viz. panicle length, panicle weight, number of panicles/m2, number of grains/panicle and test weight. Penoxsulam 35 g/ha at 10 DAS fb 1 hand weeding at 35 DAS statistically influenced the grain and straw yields and harvest index over all other treatments except hand weeding at 15 and 35 DAS. Highest net return (43790.76) and benefit: cost ratio (2.15) was also observed under penoxsulam 35 g/ha at 10 DAS fb1 HW at 35 DAS.

Address: Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh 221 005
Email: prsanodiya10@gmail.com
Post-emergence herbicides for the control of resistant littleseed canarygrass in wheat
Author Name: S.S. Punia, Dharam Bir Yadav, Maninder Kaur and V.K. Sindhu
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00004.1 Page No:15-19
Volume: 49 2017 Full length articles
Keywords:

Herbicide mixture, Herbicide resistance, Metribuzin, Phalaris minor, Wheat

Abstract:

Farmers’ participatory field trials were conducted at village Kheri Raiwali in Kaithal district of Haryana during winter seasons of 2011-12 and 2012-13 to evaluate the bio-efficacy of post-emergence herbicides, their mixtures and sequential application for the control of the resistant littleseed canarygrass (Phalaris minor) and other weeds in wheat. Application of clodinafop 60 g/ha, fenoxaprop 120 g/ha and sulfosulfuron 25 g/ha at 35 days after sowing (DAS) did not provide satisfactory control of P. minor; however, mesosulfuron + iodosulfuron 14.4 g/ha provided better control (85-90%). Pinoxaden 50 g/ha resulted in 80% control of P. minor during first year but it provided only 55% control during second year. Ready-mix combination of metribuzin with fenoxaprop and clodinafop significantly improved the control of P. minor and broad-leaf weeds as compared to alone application of fenoxaprop and clodinafop. Maximum weed control efficiency (WCE) and highest grain yield (5.2 t/ha) was recorded with the application of sulfosulfuron + metsulfuron 32 g/ha during 2011-12, which was statistically at par with mesosulfuron + iodosulfuron and clodinafop + metribuzin; whereas during the second year, sulfosulfuron + metsulfuron 40 g/ha resulted in highest grain yield. Sequential application of sulfosulfuron + metsulfuron 32 g/ha at 25 DAS before irrigation fb sulfosulfuron + metsulfuron 32 g/ha at 40 DAS (after first irrigation) registered 97% WCE but its continuous adoption may lead to rapid development of resistance. The study indicates the need of new post-emergence herbicide with different mechanism of action (MOA), which can be integrated with non-chemical weed control strategies.

 

 

Address: Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 125 004
Email: puniasatbir@gmail.com
Tillage and weed management on yield and nutrient uptake of wheat under maize-wheat cropping system in Western Himalayas
Author Name: Lobzang Stanzen, Anil Kumar, R. Puniya, Neetu Sharma, Amit Mahajan and Ashu Sharma
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00005.3 Page No:20-22
Volume: 49 2017 Full length articles
Keywords:

Cropping system, Nutrient uptake, Tillage, Weed management, Wheat, Yield

Abstract:

A field experiment was conducted during Rabi season of 2013-14 and 2014-15 at SKUAST-Jammu to study the effect of tillage and weed management on yield and nutrient uptake of wheat under maize-wheat cropping system in sub-tropical irrigated conditions. The results revealed that different tillage systems recorded non-significant grain yield of wheat. However, ZT in wheat either preceded by conventional tillage (CT) or zero tillage (ZT) in maize was more beneficial as it recorded higher net returns and benefit: cost ratio than CT in wheat. Among the weed management, post-emergence application of metribuzin at 200 g/ha resulted in lowest total weed density and biomass of weeds, which was statistically at par with two hand weedings and significantly lower than weedy check. The post-emergence application of metribuzin at 200 g/ha also recorded highest weed control efficiency (WCE), net returns and B:C ratio during both the years of experimentation followed by two hand weedings.

 

 

Address: Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Main Campus Chatha, Jammu, Division of Agronomy, 180 009
Email: stanzen2015@gmail.com
Adoption and impact assessment of weed management technologies in wheat and greengram under conservation agriculture system in central India
Author Name: P.K. Singh, Shobha Sondhia, R.P. Dubey, Sushilkumar, Bhumesh Kumar, Yogita Gharde and V.K. Choudhary
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00006.5 Page No:23-28
Volume: 49 2017 Full length articles
Keywords:

Adoption, Conservation Agriculture, Greengram, Herbicides, Wheat

Abstract:

Rice-wheat is the major cropping system in the Indo-Gangetic plains and is also practiced on considerable area in Madhya Pradesh. Rice-wheat production system under conventional practices involves tedious and time-consuming methods of field preparation and weed management; increases cost of production, deteriorates soil fertility, and do not offer desired benefits for increasing the grain yields. In conventional agriculture, burning of crop leftover residue has become a major challenge that leads to loss of precious plant nutrients and deteriorates environmental quality. In order to mitigate these problems, technically-feasible, economically-viable and ecologically-permissible technologies need to be essentially adopted. A technology is required to facilitate timely sowing in standing stubbles, minimize weed infestation, lower cost of production, improve fertilizer/water-use efficiency and improve soil health. To reap the benefits of conservation agriculture (CA), studies were conducted at farmers’ fields in rice-wheat-greengram cropping system in black-cotton soils in Madhya Pradesh for consecutive five years. Sowing was done with Happy Seeder. Emergence of weeds from upper soil surface was effectively controlled by herbicides. Results showed that the benefits of CA can well be harnessed in black-cotton soils with rice-wheat-greengram cropping system.  Retention of crop residues on soil surface provided an effective mulch cover for nutrient and moisture conservation, temperature moderation and weed control.

 

 

Address: ICAR-Directorate of Weed Research, Jabalpur, Madhya Pradesh 482 004
Email: drsinghpk@gmail.com
Control of mixed weed flora in wheat with sequential application of pre- and post-emergence herbicides
Author Name: Simerjeet Kaur, Tarundeep Kaur and Makhan S. Bhullar
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00007.7 Page No:29-32
Volume: 49 2017 Full length articles
Keywords:

Herbicides, Mixed weed flora, Pre-mix, Sequential application, Tank-mix, Weed control, Wheat 

Abstract:

The field efficacy of pre- and post-emergence herbicides for control of mixed weed flora in wheat was evaluated in a field study conducted at Punjab Agricultural University, Ludhiana during Rabi seasons of 2014-15 and 2015-16. The season long growth of weeds reduced wheat yield upto 38.5%. Pendimethalin and metribuzin recorded 65-73 and 73-78% control of Phalaris minor, respectively and their tank-mix application enhanced P. minor control to 78-85%. Pendimethalin and metribuzin recorded 26-33 and 58-63% control of Medicago denticulata, respectively and their tank-mix application enhanced control to 77-92% of this weed. Pendimethalin and metribuzin provided control of Rumex dentatus to the extent of 98-100% and 68-92%, respectively, while provided 98-100 and 63-72%, respectively control of C. album. Sequential application of pendimethalin as pre-emergence followed by sulfosulfuron as post-emergence recorded the highest weed control efficiency (96%) and wheat grain yield (4.8 t/ha), and it was at par to pre-emergence pendimethalin + metribuzin, post-emergence pinoxaden + metsulfuron, mesosulfuron + iodosulfuron, sulfosulfuron + metsulfuron and two hand weeding.  

 

 

Address: Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab 141 004
Email: simer@pau.edu
Assessment of pre-mix broad spectrum herbicides for weed management in wheat
Author Name: D.D. Chaudhari, V.J. Patel, H.K. Patel, Aakask Mishra, B.D. Patel and R.B. Patel
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00008.9 Page No:33-35
Volume: 49 2017 Full length articles
Keywords:

Pre-mix herbicides, Weed dry weight, Weed flora, Wheat, Yield 

Abstract:

A field experiment was carried out during the Rabi season of 2014 and 2015 on sandy loam soil to test the bio-efficacy of pre-mix broad spectrum herbicides for weed management in wheat. Major dominant weed flora in the experimental plot were Chenopodium murale (54.1%), Chenopodium album (11.9%), Phalaris minor (10.4%) and Melilotus alba (9.6%). Application of pre-mix sulfosulfuron (75%) + metsulfuron-methyl (5%) 32 g/ha as post-emergence, clodinafop  (15%) + metsulfuron-methyl (1.0%) 64 g/ha as post-emergenc (PoE), mesosulfuron (3%) + iodosulfuron-methyl sodium (0.6 %) 14.4 g/ha as PoE and hand weeding  at 20 and 40 DAS remained at par with each other and significantly reduced the density and biomass of both monocot as well as dicot weeds and resulted in significantly more number of effective tillers and yield of grain and straw. However, mesosulfuron (3%) + iodosulfuron-methyl sodium (0.6 %) 14.4 g/ha PoE showed phytotoxic effect on plant.

 

 

Address: B.A. College of Agriculture, Anand Agricultural University, Anand, Gujarat 388 110
Email: bdpatel62@yahoo.com
Herbicide combinations for control of complex weed flora in wheat
Author Name: Sheela Barla, R.R. Upasani and A.N. Puran
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00009.0 Page No:36-40
Volume: 49 2017 Full length articles
Keywords:

Chemical control,  Herbicide combination. Relative yield loss, Weed control efficiency, Wheat

Abstract:

A field experiment was conducted in 2014 and 2015 to find out the effect of herbicides on weed dynamics and productivity of wheat under Jharkhand situation. Two hand weeding performed in wheat crop at 30 and 60 DAS recorded significantly reduced weed density and weed dry matter of broad-leaf, grassy, sedges and total weeds at 30 and 60 DAS with WCE of 94.3 and 94.2%, respectively and was similar to post-emergence application of clodinafop 0.06 kg/ha and pre-emergence application of pendimethalin + metribuzin 1.0 kg/ha + 0.175 kg/ha. This resulted in maximum total and effective tillers, grain (3.08 t/ha) and straw (5.37 t/ha) yield and net return (` 32,019.00 and B:C ratio (1.33) compared to other herbicides application.

Address: Department of Agronomy, Birsa Agricultural University, Ranchi, Jharkhand 834 006
Email: sheela.barla123@gmail.com
Integrated weed management in pearl millet
Author Name: P.P. Girase, R.T. Suryawanshi, P.P. Pawar and S.C. Wadile
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00010.7 Page No:41-43
Volume: 49 2017 Full length articles
Keywords:

Herbicide, Pearl millet, Post-emergence, Pre-emergence, Weed control efficiency

Abstract:

A field experiment was carried out during the rainy (Kharif) seasons of 2012 to 2014 in medium black soil at Bajra Research Scheme, Dhule, Maharashtra, to evaluate the effect of integrated weed management in rainfed pearl millet (Pennisetum glaucum) with pre-emergence application of atrazine 0.5 kg/ha + 1 HW at 35 DAS, four levels of post-emergence application of atrazine (0.1, 0.2, 0.3 and 0.4 kg/ha) along with one hand weeding at 35 DAS, two hand weeding and hoeing (at 20 and 40 DAS). The maximum grain yield was recorded with pre-emergence application of atrazine 0.5 kg/ha + 1 HW at 35 DAS, which was at par with two hand weeding and hoeing, and post-emergence application of atrazine 0.4 kg/ha + 1 HW at 35 DAS and increased the yield by 62.14% over weedy check. The higher grain yield may be owing to significantly lower weed dry weight, higher weed control efficiency which reflected in higher values of plant height, number of effective tillers/plant, earhead length and 1,000 grain weight. Maximum net returns (¹ 27,282/ha) and B:C ratio (2.73) were realized with pre-emergence application of atrazine 0.5 kg/ha + 1 HW at 35 DAS followed by post-emergence application of atrazine 0.4 kg/ha + 1 HW at 35 DAS which recorded net monetary returns of ¹ 25,404/ha and B:C ratio 2.62.

Address: Bajra Research Scheme, College of Agriculture, Dhule, Maharashtra 424 004
Email: premsinggirase2004@gmail.com
Integrated weed management in Kharif blackgram
Author Name: C.V. Patel, T.C. Poonia and M.S. Pithia
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00011.9 Page No:44-46
Volume: 49 2017 Full length articles
Keywords:

Blackgram. Economics, Herbicides, Integrated weed management, Weed control efficiency

Abstract:

A field experiment was conducted on medium black calcareous clayey soil at Pulses Research Station, Junagadh Agricultural University, Junagadh during three seasons of 2011-12, 2012-13 and 2014-15 to study the efficacy of pre-and post-emergence herbicides in Kharif blackgram (cv. GU-1). The quizalofop-ethyl 40 g/ha as post-emergence (PoE) at 20 days after seeding (DAS) + hand weeding (HW) at 40 days after seeding (DAS) and pendimethalin 900 g/ha as pre-emergence (PE) + hand weeding (HW) at 40 DAS were found equally effective to the weed-free check in controlling weeds and improving growth and yield attributes and ultimately seed yield (1.14 and 1.13 t/ha) and straw yield (1.26 and 1.33 t/ha) of blackgram. These treatments also recorded higher weed control efficiency (65.3 - 63.1%), herbicide efficiency index (81.1 - 82.3%), lower weed index (9.1 - 9.7%) and minimum weed dry biomass (273.9 - 291.7 kg/ha) and higher net returns (Rs. 21,230 and Rs 21,162 /ha). Integrated weed management practices with herbicides as a component were found effective and economical under south Saurashtra agro-climatic conditions of Gujarat.

 

 

Address: Pulses Research Station, Junagadh Agricultural University, Junagadh, Gujarat 362 001
Email: pooniatc@gmail.com
Weed management in onion through oxyfluorfen and its effect on soil microflora and succeeding crop of blackgram
Author Name: R. Poddar, S. Bera and R.K. Ghosh
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00012.0 Page No:47-50
Volume: 49 2017 Full length articles
Keywords:

Chemical control, Effect on succeeding crop, Microflora, Onion, Oxyfluorfen, Weed management

Abstract:

A field experiment was carried out to study the bioefficacy and phytotoxicity of oxyfluorfen (23.5% EC) in onion variety ‘Sukhsagar’ and its residual effect on the succeeding crop black gram variety ‘Basant Bahar (PDU-1)’ in Inceptisol of West Bengal. Pre-emergence application of oxyfluorfen 400 g/ha followed by one hand weeding (HW) at 30 days after planting (DAP) caused significantly lower weed density, weed dry weight and higher weed control efficiency at all the stages. Application of oxyfluorfen 200 g/ha + one HW at 30 DAP kept the weed density and dry weight below the economic threshold level and increased the bulb yield in onion. Though micro flora population at the initial stage was reduced due to application of herbicides but later their population was significantly higher than initial. Succeeding crop blackgram sown immediately after the harvest of onion was not affected by the residues of new formulation of oxyfluorfen at all different doses.

Address: Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal 741 252
Email: rpoddar.bckv@rediffmail.com
Weed management in turmeric
Author Name: S.S. Rana, Neelam Sharma, D. Badiyala and Rajinder Kumar
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00013.2 Page No:51-57
Volume: 49 2017 Full length articles
Keywords:

Impact, Herbicides, Loss, Turmeric, Weed management, Yield

Abstract:

Pre-emergence metribuzin 0.7 kg/ha, pendimethalin 1.0 kg/ha and atrazine 0.75 kg/ha each followed by i) hand weeding (HW) (45 and 75 DAP, days after planting), ii) fenoxaprop 67 g/ha + metsulfuron-methyl 4 g/ha (45 DAP ) and iii) mulch + HW (75 DAP); pre-emergence oxyflourfen 0.3 kg/ha and oxadiargyl 0.25 kg/ha and post-emergence glyphosate 1.23 and 1.85  kg/ha (25 DAP) each followed by HW (45 and 75 DAP); HW (25, 45 and 75 DAP) and untreated control were evaluated at Palampur during 2014, 2015 and 2016 to develop an effective weed management strategy in turmeric for mid hill conditions of Himachal Pradesh. Treatments constituting fenoxaprop + metsulfuron-methyl were phyto-toxic resulting in poor turmeric crop canopy formation thereby  more growth of Ageratum sp. and lower plant height, plant stand, daughter corms/mother corm, rhizome yield and economics. Other weed control treatments were effective in controlling Echinochloa colona and other grassy weeds. With every g/m2 increase in weed dry weight, the fresh turmeric rhizome yield was reduced by 64.2 kg/ha. Pre-emergence atrazine/metribuzin/pendimethalin fb mulch fb hand weeding had effectively controlled weeds and increased the fresh rhizome yield by 54.1 to 54.9%, cured rhizome yield by 57.6 to 59.4% and net return by 66.4 to 68.3% being comparable to hand weeding thrice. However, hand weeding thrice was the costliest treatment. Atrazine/metribuzin/pendimethalin fb mulch fb hand weeding had lower weed persistence index and weed index and higher weed management index, agronomic management index, integrated weed management index and overall impact index than other treatments. Residues of metribuzin, atrazine, pendimethalin, oxyfluorfen and metsulfuron –-methyl in soil and rhizomes of turmeric were found below detectable level. Based on overall impact index metribuzin fb mulch fb hand weeding, atrazine fb mulch fb hand weeding and pendimethalin fb mulch fb hand weeding in that order are recommended as an alternative to hand weeding thrice in turmeric.

 

 

Address: Department of Agronomy, Forages and Grassland Management, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, Himachal Pradesh 176 062
Email: ranassdee@gmail.com
Herbicides and polythene mulching effects on yield of cassava
Author Name: M. Nedunchezhiyan, G. Byju, S.S. Veena and V. Ravi
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00014.4 Page No:58-62
Volume: 49 2017 Full length articles
Keywords:

Cassava, Chemical control, Mulching,  Polyethene, Root yield, Weed control efficiency 

Abstract:

A field experiment was conducted to study the effects of weed management practices on cassava under irrigated conditions in Bhubaneswar (Odisha), India for consecutive three years (2010-11 to 2012-13). The results revealed that four rounds of manual weeding at 1, 2, 3 and 4 months after planting (MAP) and black polythene mulching resulted in taller plants, more number of nodes and leaves per plant, maximum number of storage roots per plant, maximum length and girth of storage roots as well as fresh storage roots yield per plant with lower weed biomass.  Mean fresh root yield due to black polythene mulching was at par with four rounds of manual weeding (at 1, 2, 3 and 4 MAP). Black polythene mulching resulted in higher dry matter partitioning efficiency and soil microbial population. The root yield decreased by 9.6%, due to pre-emergence  application of oxyfluorfen + two rounds of manual weeding (at 2 and 3 MAP) treatment and 10.1% in two rounds of manual weeding (at 1 and 2 MAP) + post-emergence application of glyphosate (at 3 MAP) compared to four rounds of manual weeding (at 1, 2, 3 and 4 MAP).

 

 

Address: ICAR-Central Tuber Crops Research Institute, Regional Centre, Bhubaneswar, Odisha 751 019
Email: mnedun@gmail.com
Bio-efficacy of fenoxaprop-p-ethyl for grassy weed control in onion and its residual effect on succeeding maize crop
Author Name: Rohitashav Singh, Biswajit Pramanick, A.P. Singh, Neelam, Sanjeev Kumar, Akhilesh Kumar and Gajendra Singh
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00015.6 Page No:63-66
Volume: 49 2017 Full length articles
Keywords:

io-efficacy, Chemical control, Fenoxaprop-p-ethyl, Onion, Phytotoxicity, Residual effect, Weeds

Abstract:

A field experiment was conducted during Rabi seasons of 2008 and 2009 at Crop Research Center of GBPUA&T, Pantnagar (Uttarakhand) to study the effect of fenoxaprop-p-ethyl 9 EC for grassy weed management in onion and its residual effect on succeeding maize crop. All treatments reduced the density of major weed species of onion and dry weight of weeds. Yield attributes and bulb yield were increased significantly over unweeded check. Application of fenoxaprop-p-ethyl 78.75 g/ha was the best tretment and subsequently recorded maximum bulb yield of onion as compared to other doses of fenoxaprop-p-ethyl (56.25, 67.50 g/ha) and quizalofop-p-ethyl 37.5 g/ha. This herbicide did not show any phytotoxic effect on onion crop. Similarly, post-harvest study on succeeding crop of maize indicated the absence of no residual phytotoxic effect of fenoxaprop-p-ethyl tested in onion.

 

 

Address: G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand 263 145
Email: singh.rohitash5@gmail.com
Control of broomrape in Bidi tobacco by different management practices
Author Name: C.J. Patel*, K.M. Gediya, H.K. Patel and A.R. Patel
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00016.8 Page No:67-69
Volume: 49 2017 Full length articles
Keywords:

Bidi tobacco, Broomrape, Management, Orobanche ramosa                           

Abstract:

An experiment was conducted on loamy sand soil at Bidi Tobacco Research Station Farm, Anand Agricultural University, Anand, Gujarat during Kharif-Rabi season of 2011-12 and 2012-13. Twenty treatment combinations comprising of four levels of fertilizer management and five levels of herbicide management were tested in a factorial RBD with four replications. It was concluded that for controlling broomrape effectively and securing maximum cured leaf yield of Bidi tobacco as well as economic returns with management through different fertilizers, an application of ammonium sulphate at 200 kg/ha along with irrigation should be carried out. With regard to management of broomrape, manual weeding of broomrape was found to be the best practice.

 

 

Address: Bidi Tobacco Research Station, Anand Agricultural University, Anand, Gujarat 388 110
Email: chiragjpatel@aau.in
Detection of bispyribac sodium + metamifop 14% SE residue in soil by bioassay method
Author Name: Sheeja K Raj and Elizabeth K Syriac
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00017.X Page No:70-74
Volume: 49 2017 Full length articles
Keywords:

Bioassay, Bispyribac-sodium + metamifop, Indicator plant, Maize, Residue

Abstract:

Bioassay studies were carried out to assess the residual effect of herbicide mixture, bipyribac-sodium + metamifop 14% SE in soil with indicator plant.  A screening trial with three test crops, viz. cucumber, sunflower and maize indicated that maize was the best indicator plant, because it recorded the highest regression co-efficient for the parameters tested such as fresh and dry weight of shoot, shoot length and root length. The shoot dry weight of maize was identified as the best parameter to detect the phytotoxic residue in soil. The bioassay conducted with maize as an indicator plant in the post experiment soil revealed that there was no significant difference among the treatments (bispyribac-sodium + metamifop at 60, 70, 80, 90 g/ha, bispyribac applied alone at 25 g/ha, hand weeding twice and weedy check) during both the seasons in germination percentage, shoot length, root length, fresh weight and dry weight of maize plant. Thus it can be inferred that the herbicide mixture, bispyribac-sodium + metamifop did not leave any phytotoxic residues in soil.

 

 

Address: Coconut Research Station, Balaramapuram, Kattachalkuzhy, Thiruvananthapuram, Kerala 695 501
Email: sheejakraj70@gmail.com
Nutritive value and safety of greater club rush as livestock feed
Author Name: P. Gayathri Karthikeyan, Sansamma George and C.R. Chithrima
DOI:                  http://dx.doi.org/10.5958/0974-8164. Page No:75-78
Volume: 49 2017 Full length articles
Keywords:

Greater club rush, Heavy metals, Nutrient value, Proximate analysis, Scirpus grossus

Abstract:

The present study was undertaken to assess the nutritive value of greater club rush (Scirpus grossus L. f) and safety of the weed biomass as a livestock feed. The results showed that the nutrient composition of the weed biomass was comparable to some of the popular cultivated fodder crops like guinea grass. Heavy metal content of the sedge plant was mostly within the permissible limits as recommended by World Health Organisation (WHO). However, the cadmium concentration was found to be more than the safe limit, indicating possible risk in allowing free grazing in contaminated soils. The data on the transfer and accumulation of  heavy metals from soils to plant shoots/roots as estimated through biological concentration factor (BCF), translocation factor (TF) and bio accumulation coefficient (BAC) also indicated that there is a need for caution when animals are allowed to graze freely on the luxuriant growth of greater club rush in wetland  ecosystem.

 

 

Address: Department of Agronomy, College of Agriculture, Vellayani, Thiruvananthapuram, Kerala 695 522
Email: gayathrikpappu@yahoo.com
Weed management in lowland rice in Makurdi, Nigeria
Author Name: P.A. Shave and M.S. Anzenge
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00019.3 Page No:79-81
Volume: 49 2017 Short communications
Keywords:

Conventional tillage, Management, Methods, Yield, Lowland rice

Abstract:

A trial was conducted on the research farm of Federal University of Agriculture, Makurdi, Nigeria during 2012 cropping season to evaluate the effect of weed management methods on the yield of lowland rice using the variety ‘FARO 44 (SIPI 692030)’. Seven treatments included conventional tillage (CT) with 2,4-D at 1.44 kg/ha at 3 WAS, CT followed by propanil applied at 1.44 kg/ha at 3 weeks after planting (WAS), CT followed by one hoe weeding at 3 WAS, CT followed by pendimethalin applied at 1.44 kg/ha, CT followed by 2 hoe weeding at 3 and 9 WAS, CT followed by 2,4-D + propanil 3 WAS at 1.44 kg/ha + 1.44 kg/ha, CT, no weed control. Results indicated that, although there was no significant differences. Trend showed that CT followed by 2 hoe weeding at 3 and 9 WAS gave the highest (p<0.005) yield of 2.45 t/ha followed by CT followed by 2,4-D + propanil at 1.44 kg/ha + 1.44 kg/ha with 2.33 t/ha. Lowest yield of 0.83 t/ha was obtained from the control plot.

Address: Department of Crop and Environmental Protection, Federal University of Agriculture, P. M. B. 2373, Makurdi, Nigeria
Email: mosesanzenge@yahoo.com
Comparative performance of manual weeders under system of rice intensification in Indo-Gangetic plains
Author Name: Bikash Sarkar, S.K. Singh, Rakesh Kumar, J.S. Mishra, Ajay Kumar, Vikash Yadav, R.B. Reddy and B.P. Bhatt
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00020.X Page No:82-84
Volume: 49 2017 Short communications
Keywords:

SRI, weeder, field capacity, weeding efficiency

Abstract:

Two weeding tools were evaluated in SRI. Maximum weeding efficiency was recorded with mandava weeder as compared to cono-weeder. Mandava weeder consumed minimum man-days/ha. Therefore, mandava  weeder may be promoted at farmer’s fields in wider scale as it reduces energy use of small and marginal farming community of the Indo-Gangrtic Plains of the Eastern India.

Address: ICAR-Research Complex for Eastern Region, ICAR Parisar, P.O: B.V. College, Patna, Bihar 800 014
Email: jsmishra31@gmail.com
Weed management and nitrogen application for improved yield of mustard
Author Name: Sontara Kalita, S.L. Mundra, N.S. Solanki and Naresh Kumar Sharma
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00021.1 Page No:85-87
Volume: 49 2017 Short communications
Keywords:

Mustard, Pre-emergence herbicides, Weed management

Abstract:

Pre-emergence application of broad spectrum herbicide oxadiargyl 0.09 kg/ha in mustard recorded the highest net returns and B-C ratio with greater seed yield comparable to one hand weeding. It was found that oxadiargyl 0.09 kg/ha is the alternative option of costly hand weeding practice in gaining higher yield in mustard. Among the N treatments, application of 75 kg N/ha recorded the maximum net returns (Rs. 61333/ha) and B-C ratio (2.75) with higher seed yield. 

Address: Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology Udaipur, Rajasthan 313 001
Email: sontara.kalita101@gmail.com
Effect of herbicides on weeds, grain yield and soil health in wheat
Author Name: Raj Kumar, R.S. Singh, Jaidev and Manoj Kumar
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00022.3 Page No:88-89
Volume: 49 2017 Short communications
Keywords:

Herbicides, soil health, microbial population, wheat, weeds and yield

Abstract:

Application of pendimethalin + metribuzin 1.0 + 0.175 kg/ha was found most suitable for increasing growth, yield, nutrient uptake and economics. However, two hand weeding was found most effective for improving soil health. Microbial population was found affected at 50 DAS it was gain increased by the harvest time. hand weeding recorded maximum population.

Address: Narendra Deva University Agriculture &Technology, Kumarganj, Faizabad, Utter Pradesh 224 229
Email: rkpnduat@gmail.com
Weed management to improve productivity and nutrient uptake of Rabi maize
Author Name: Pradeep Ram, G. Sreenivas, P. Leela Rani and A. Madhavi
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00023.5 Page No:90-92
Volume: 49 2017 Short communications
Keywords:

Crop, Herbicides, Mulches, Nutrient uptake, Rabi maize, Weeds, Weed management

Abstract:

Present investigation was undertaken to study weed growth, yield and nutrient uptake in maize under varied weed management practice during winter season under irrigated conditions. Reduced weed dry matter was noticed significantly in farmers practice (HW at 20 and 40 DAS), which was comparable with black and white polythene mulch (25 µm thickness UV resistant). Application of black polythene mulch showed significant increase in crop dry matter at physiological maturity stage. highest N, P and K removal was noticed with black polythene mulch and was at par with white polythene mulch and farmers practice for grain nitrogen, whereas for grain P and K, higher removal was observed with black polythene mulch. Significantly more grain yield was obtained under black polythene mulch, which was comparable with grain yield of white polythene mulch, farmers practice (HW at 20 and 40 DAS) and pre-emergence application of atrazine 1.0 kg/ha fb 2, 4- D sodium salt 1.0 kg/ha at 30 DAS.

Address: Department of Agronomy, College of Agriculture,Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad 500 030
Email: leelagro@gmail.com
Integrated weed management in chickpea
Author Name: Alka Singh and Namrata Jain
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00024.7 Page No:93-94
Volume: 49 2017 Short communications
Keywords:

Alachlor, Hand hoeing, Pendimethalin, Straw mulch, Weed mulch

Abstract:

Hand weeding twice was most effective and recorded minimum weed density and weed dry weight followed by pendimethalin at 1.0 kg/ha + hand weeding and pendimethalin at 1.0 kg/ha + hand hoeing. Two hand weeding at 20 and 40 DAS recorded the highest yield (2.38 t/ha) followed by pendimethalin 1.0 kg/ha + hand weeding at 30 DAS (2.07 t/ha). Pre-emergence application of pendimethalin 1.0 kg/ha and alachlor 1.0 kg/ha produced significantly higher seed yield over straw mulch and weed mulch. The highest net monetary returns (` 75739/ha) was obtained with two hand weedings followed by pendimethalin + hand weeding and pendimethalin + hand hoeing.

 

 

Address: College of Agriculture, Tikamgarh, Madhya Pradesh 472 001
Email: j_namrata1@rediffmail.com
Crop geometry and weed management effect on weed dynamics in soybean
Author Name: B.S. Nagre, A.B. Kamble, N.J. Danawale and M.B. Dhonde
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00025.9 Page No:95-97
Volume: 49 2017 Short communications
Keywords:

Crop geometry, Economics, Herbicide, Soybean, Weed management 

Abstract:

.

Address: Department of Agronomy, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar 413 722
Email: drarunkamble@gmail.com
Chemical control of weeds in dry-seeded rice
Author Name: Tej Pratap, V. Pratap Singh and Rekha
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00026.0 Page No:98-99
Volume: 49 2017 Short communications
Keywords:

Dry seeded rice, Herbicides combination, Weed biomass, Weed control efficiency, Grain yield 

Abstract:

Application of pendimethalin 1000 g/ha as pre-emergence  fb bispyribac-sodium 25 g/ha as post-emergence + one hand weeding at 45 DAS was  found most effective in controlling weeds resulted in  higher weed control efficiency and grain yield.

Address: G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand 263 145
Email: drtpsingh2010@gmail.com
Leaching behavior of oxyfluorfen in FYM amended and un-amended sandy clay loam soil
Author Name: Asha Arora
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00027.2 Page No:100-101
Volume: 49 2017 Short communications
Keywords:

Bioassay, FYM, Leaching, Oxyfluorfen

Abstract:

Leaching behavior of oxyfluorfen herbicide was evaluated under laboratory conditions in FYM amended (20 t/ha) and un-amended sandy clay loam soil.  Oxyfluorfen at recommended and double the recommended level was applied in soil in PVC columns (10 cm diameter and 60 cm long). After seven days, the presence of herbicides at different soil depths was determined through bioassay by using maize as sensitive crop. The study revealed that oxyfluorfen leaches up to 30 to 40 cm in sandy clay loam soil and the leaching decreases to 20 to 35 cm by amendment of FYM indicating that organic carbon content is an important factor that influence the leaching of oxyfluorfen.

Address: AICRP on Weed Management, RVSKVV, College of Agriculture, Gwalior, Madhya Pradesh 474 002
Email: ashaaroragwl@gmail.com
Effect of cadmium uptake on growth and physiology of water lettuce
Author Name: Mayank Varun, Clement O. Ogunkunle, C. Sarathambal, Manoj S. Paul, Bhumesh Kumar
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00028.4 Page No:102-104
Volume: 49 2017 Short communications
Keywords:

Cadmium, Heavy metal,  Pistia stratiotes, Phytoremediation, Uptake

Abstract:

This study was aimed to determine the cadmium uptake and accumulation potential of  Pistia stratiotes for phytoremediation of cadmium contaminated water bodies. Plants were grown in Hogland’s medium spiked with 0, 0.5, 1, 2.5, 5 and 10 mg/L Cd, individually. Plant samples (roots and leaves) were analyzed for Cd content at 3, 6, 9, 12, and 15 days after treatment. A steady increase in Cd accumulation with increasing metal concentration and exposure period was observed for all treatments. The toxicity symptoms of Cd showed chlorosis on leaves. A significant reduction in the relative growth, biomass productivity and total chlorophyll content with the exposure time and concentration was observed. Accumulation of cadmium was more in roots (1308 µg/g) as compared to shoots (543.3 µg/g). Statistically significant difference (p0.001) in mean metal content in root and shoot at successive days of study was recorded.

 

 

Address: Department of Botany, St. John’s College, Agra, Uttar Pradesh 282 002
Email: 30mayank@gmail.com
Chemical control of duck weed and its effect on water quality and residue
Author Name: Sushilkumar and Shobha Sondhia
DOI:                  http://dx.doi.org/10.5958/0974-8164.2017.00029.6 Page No:105-107
Volume: 49 2017 Short communications
Keywords:

Chemical control, Duckweed Glyphosate, Herbicides, Paraquat, Metsulfuron-methyl, Water quality 

Abstract:

An experiment was conducted to evaluate chemical control of duckweed (Lemna minor) and its effect on water quality and herbicide residue. Paraquat, glyphosate and metsulfuron-methyl (MSM) were applied in different doses on Lemna minor mat in water tank. Paraquat 0.5 kg/ha resulted in 100% control of Lemna minor in 15 days while metsulfuron-methyl (MSM) and glyphosate resulted 100% control in 30 days. Water quality in relation to dissolve oxygen and pH were affected by all treatments as compared to the untreated control. Low pH was found in all treated water tanks compared to untreated control. Residues of paraquat in water were 0.11 to 0.39 ppm at 0.25 to 1.0 kg/ha application rate at 0 day, which was reduced to 0.001 to 0.006 ppm at 60 days after application (DAA). Residues of MSM in higher dose (0.016 kg/ha) ranged from 0.56 at 0 day to 0.070 ppm at 60 DAA, but it could not be detected in lower dose at 0.008 kg/ha at 60 DAA. Glyphosate residue in higher dose (1.5 kg/ha) ranged from 0.14 ppm at 0 day to 0.017 ppm at 60 DAA.

Address: ICAR-Directorate of Weed Research, Maharajpur, Jabalpur, Madhya Pradesh 482 004
Email: sknrcws@gmail.com