Evaluation of different herbicides against weeds in mungbean (Vigna radiata L.)

2019 ◽  
Author(s):  
Lata Verma ◽  
H. S. Kushwaha
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Dry Weight ◽  
Yield Attributes ◽  
Weed Density ◽  
Net Returns ◽  
Weed Control Efficiency ◽  
Stover Yield ◽  
Hand Weeding ◽  
Clodinafop Propargyl

A field experiment was conducted during kharif season of 2016 at Mahatma Gandhi Chitrakoot Gramodaya Vishwavidyalaya, Chitrakoot, Satna (M.P.) to study the efficacy of different herbicides against weeds in mungbean. The weed density recorded at 30 and 60 DAS was significantly lower under pendimethalin 30 EC + imazethapyr 2 EC (Ready mix) 0.75 kg/ha as pre-emergence (PE) followed by pendimethalin PE. However, significantly lower weed dry weight and statistically superior weed control efficiency were noted in twice hand weeding at 20 DAS and 40 DAS and pendimethalin + imazethapyr (R.mix.) 0.75 kg/ha at same stages of crop (30 and 60 DAS). While, yield attributes viz. pods/plant (21.8) was significantly higher in plot treated with imazethapyr 10 SL @ 40g/ha applied at 20 DAS and statistically at par with imazamox 35 WG+ imazethapyr 35 WG 60g/ha applied at 20 DAS and clodinafop - propargyl 8% + aciflourfen - sodium 16.5% (WP) 187.5 kg/ha applied at 20 DAS. Application of clodinafop - propargyl 8% + aciflourfen - sodium 16.5% (WP) 187.5 kg/ha at 20 DAS produced significantly maximum seed yield (531 kg/ha) of mungbean closely followed by imazethapyr 10 SL @ 40g/ha at (528 kg/ha) and pendimethalin 30 EC + imazethapyr 2 EC (R.mix) 0.75 kg/ha (521 kg/ha). However, stover yield (2699 kg/ha), gross returns (`58464/ha) and net returns (`43163/ha) were obtained significantly superior under clodinafop - propargyl 8% + aciflourfen - sodium 16.5% (WP) 187.5 g/ha.

Effect of herbicides and herbicide mixtures on weeds in wheat

2016 ◽  
Vol 50 (2) ◽  
Author(s):  
Dhirender Choudhary ◽  
P. K. Singh ◽  
N. K. Chopra ◽  
S. C. Rana
Keyword(s):  
Triticum Aestivum ◽  
Weed Control ◽  
Harvest Index ◽  
Dry Weight ◽  
Field Investigation ◽  
Weed Density ◽  
Metsulfuron Methyl ◽  
Weed Control Efficiency ◽  
Herbicide Mixtures ◽  
Hand Weeding

A field investigation was carried out to evaluate the effect of herbicides and their mixtures on weeds in wheat (<italic>Triticum aestivum</italic> L.) cv. PBW-343. Minimum weed density per m<sup>2</sup> and weed dry weight (5.13 and 17.31g) was recorded with sulfosulfuron at 25g ha<sup>−1</sup> followed by clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> (5.19 and 18.45g), metribuzin at 200gha<sup>−1</sup>(5.85 and 25.98g), pendimethalin at 1000g fb 2,4-Dat400g ha<sup>−1</sup> (6.49 and 31.73g) and hand weeding twice(7.01 and 35g), respectively. Also, maximum weed control efficiency was recorded under sulfosulfuron at 25g ha<sup>−1</sup> (83.85%) followed by clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> (83.17%) and metribuzin at 200g ha<sup>−1</sup> (75.85%), respectively. All the weed control treatments recorded significantly higher harvest index than the weedy check (40.24). Among various herbicidal treatments, application of clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> recorded highest harvest index (41.91) followed by sulfosulfuron at 25 gha<sup>−1</sup> (41.83) and pendimethalin at 1000g fb2,4-Dat 400gha<sup>−1</sup> (41.25) respectively. The harvest index recorded under clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> and sulfosulfuron at 25 g ha<sup>−1</sup> was significantly at par with weed free (42.06).

Integration of Chemical and Cultural Methods for Weed Control Management in Soybean (Glycin Max. L)

2019 ◽  
Author(s):  
R L Rajput ◽  
Brajraj Singh Kasana
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Growth Yield ◽  
Yield Attributes ◽  
Pooled Data ◽  
Cultural Methods ◽  
Weed Control Efficiency ◽  
Hand Weeding ◽  
College Farm ◽  
Control Management

A field experiment was conducted during kharif season 2012 and 2013 at Rajmata Vijayaraje Scindia Krishi Vishwa Vidhyalaya RVSKVV, College Farm Gwalior (M.P.) to asses the suiTable method for weed control in soybean. On the basis of two years pooled data results weeding twice at 20 and 40 DAS significantly highest growth, yield attributes and seed yield as compared to the un-weeded control and was at par with pendimethalin (750 g a.i./ha) + one hand weeding, trifluralin (1000 g a.i./ha) + one hand weeding at 20 DAS and imezathapyr(100 g a.i./ha) + one hand weeding at 40 DAS. These treatments also recorded lower weed dry biomassand higher weed control efficiency. Pendimethalin (750 g a.i./ha) + one hand weeding at 20 DAS resulted higher net return (` 63500) and B:C (2.58) ratio followed by trifluralin + one hand weeding and hand weeding twice at 20 and 40 DAS. In addition to hand weeding twice, pre emergence herbicide Pendimethalin (750g a,i/ha) + one hand weeding at 20 DAS can be effectively used as an alternative for controlling weeds for obtaining optimum seed yield in soybean.

Effect of post-emergence herbicides on weed control, growth and yield of cluster bean [Cyamopsis tetragonoloba (L.) Taub.] in M.P.

2017 ◽  
Vol 37 (03) ◽  
Author(s):  
Kalpana Sharma ◽  
G. S. Rawat ◽  
Dharmendra Gaur ◽  
Anju Sharma
Keyword(s):  
Field Experiment ◽  
Weed Control ◽  
Seed Yield ◽  
Growth And Yield ◽  
Cyamopsis Tetragonoloba ◽  
Yield Attributes ◽  
Cluster Bean ◽  
Control Growth ◽  
Weed Control Efficiency ◽  
Stover Yield

A field experiment was undertaken to evaluate the performance of different weed control treatments in cluster bean during kharif, 2015 in RBD with three replications. Treatment of weed free check was found best by recording highest values of yield attributes, seed (20.97 q/ha), stover (65.68q/ha) with maximum weed control efficiency at successive stages. Among different herbicides treatments, Imazethapyr + Imazamox @ 40 g/ha (PoE) at 20 DAS showed highest values of yield attributes, seed yield (19.59 q/ ha), stover yield (63.83 q/ ha), WCE (91.84, at 60 DAS) and minimum WI (6.0). In monetary terms significantly highest net return (Rs.86883 /ha) were obtained from weed free check, followed by imazethapyr + imazamox @ 40 g/ha (PoE) at 20 DAS (Rs.85398 / ha) and imazethapyr @ 75 g/ha (PoE), at 20 DAS (84394 Rs./ha). The maximum B:C ratio of 6.57 was recorded with treatment imazethapyr @ 75 g/ha (PoE), followed by imazethapyr+ imazamox @ 40 g/ha (PoE) 6.37.

Effect of weed management and fertility levels on productivity of clusterbean [Cyamopsis tetragonoloba (L.)Taub]

2017 ◽  
Author(s):  
Clusterbean . ◽  
Hand Weeding ◽  
Imazethapyr . ◽  
Pendimethalin . ◽  
Weed Management
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Cyamopsis Tetragonoloba ◽  
Fertility Level ◽  
Yield Attributes ◽  
Control Efficiency ◽  
Weed Control Efficiency ◽  
Biological Yield ◽  
Hand Weeding

A field experiment was conducted during Kharif seasons of 2014 and 2015 at Udaipur (Rajasthan) to find out the effect of weed management on productivity of clusterbean under varying fertility levels. The results revealed that among various weed management practices, two hand weeding 20 and 40 DAS recorded significantly lower weed dry matter, higher weed control efficiency, higher values of yield attributes, seed, haulm and biological yield during both the years over rest of the treatments except sequential application of pendimethalin fb imazethapyr which was statistically at par. Further, application of Imazethapyr fb hand weeding and pendimethalin fb hand weeding also gave comaparable results with pendimethalin fb imazethapyr in terms of weed control efficiency and yields. Among the fertility levels application 20 Kg N + 40 Kg P2O5 ha-1 significantly increased pods plant-1 (24.04), seeds pod-1, (7.12), test weight ( 25.33 g), seed ( 1035 kg ha-1), haulm (2161 kg ha-1) and biological (3196 kg ha-1 ) yield and harvest index ( 31.98 %) of clusterbean over 10 Kg N + 20 Kg P2O5 ha-1 however, it was found statistically at par with fertility level 30 Kg N + 60 Kg P2O5 ha-1. Therefore, clusterbean should be fertilized with 20 Kg N + 40 Kg P2O5 ha-1 and weeds must be controlled with pendimethalin (PE) fb imazethapyr 0.1 kg ha-1 20 DAS .

scholarly journals Bioefficacy, Phytotoxicity and Economics of Post-emergence Herbicides in Moth Bean (Vigna aconitifolia) in Hot Arid Regions

2021 ◽  
Author(s):  
N.K. Jat ◽  
D.V. Singh
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Weed Management ◽  
Arid Regions ◽  
Block Design ◽  
Resistance Index ◽  
Moth Bean ◽  
Herbicide Treatments ◽  
Hand Weeding ◽  
Clodinafop Propargyl

Background: Weed infestation is the major cause of yield loss to Kharif pulses in arid regions. Post-emergence herbicide application is a promising weed management option for pulses in these areas. Therefore, the current study was aimed to find an effective and economic post-emergence herbicide molecule for weed control in moth bean. Methods: A field experiment was conducted during 2017-2019 with different herbicides, hand weeding, weed-free and unweededs in Kharif mung bean in a randomized complete block design with three replications. Result: Among the herbicide treatments, post-emergence application of propaquizafop + imazethapyr @ 125 g a.i. ha-1 being statistically at par with clodinafop-propargyl + sodium acifluorfen @ 312.5 g a.i. ha-1 and hand weeding recorded the highest reduction in total weed dry matter (73.9%), highest weed control efficiency (73.8%) and lowest weed persistence index (1.03) compared to the unweeded. The reduction in seed yield in unweeded compared to weed-free and hand weeding was 50.8% and 42.1%, respectively. As the imazethapyr-containing herbicides caused crop phytotoxicity, significantly higher crop dry weight (513 g m-2), seed yield (5.53 q ha-1), stover yield (18.0 q ha-1), gross returns and net benefits of moth bean were recorded with clodinafop-propargyl + sodium acifluorfen (312.5 g a.i. ha-1) over other herbicide treatments. Clodinafop-propargyl + sodium acifluorfen (@312.5 g a.i. ha-1) registered the minimum value of weed index (20) and highest values of herbicide efficiency index (3.9) and crop resistance index (4.70).

scholarly journals Chemical weed management in Brassica rapa var. yellow sarson

2016 ◽  
Vol 8 (2) ◽  
pp. 663-667
Author(s):  
S. K. Das
Keyword(s):  
Weed Control ◽  
Seed Yield ◽  
Weed Management ◽  
Field Experiments ◽  
Control Measures ◽  
Research Station ◽  
Control Efficiency ◽  
Weed Control Efficiency ◽  
Hand Weeding ◽  
Level Of Significance

Field experiments were conducted for three years at Pulses and Oilseeds Research Station, Berhampore, Murshidabad, West Bengal, India during rabi 2008, 2009 and 2010 to develop an efficient chemical weed management practice with newer herbicidal molecules in yellow sarson. The experiment was laid out in a randomized block design with three replications having eleven treatments. Experimental results revealed that highest seed yield (1456 kg ha-1) was recorded under the treatment twice hand weeding and lowest with weedy check (910 kg ha-1). Twice hand weeding recorded 60% higher seed yield over weedy check. Application of chemical herbicides significantly improved the seed yield over W0 at 5% level of significance.. Among the chemical weed control measures, application of Pendimathalin @ 1 kg a.i./ha (PE) recorded highest seed yield (1320 kg ha-1) of yellow sarson, which was found at par with application of Pendimathalin @ 1.5 kg a.i./ha (PE), Fluchloralin @ 1.5 kg a.i/ha (PPI) and Clodinafop @ 0.06 kg a.i./ha ( 25-30 DAS). Chemical weed management practices increased the seed yield of yellow sarson by 25.3 to 45.1% over weedy check. Highest weed control efficiency (86.4%) was recorded with hand weeding twice. Significant reduction in the total weed density and total weed dry weight were found with the application of chemical herbicides at 5% level of significance. Among the chemical herbicides Pendimathalin @ 1 kg a.i./ha (PE) recorded highest weed control efficiency (81.7%). Chemical weed control measures increased the total microbial population by 26.5 to 89.4% over weedy check and 6.6 to 59.6% over twice hand weeding and thus proved to be environmentally safe and economic for managing weeds in yellow sarson.

scholarly journals Effect of water management and weed control treatments on the performance of transplanted aman rice

1970 ◽  
Vol 33 (3) ◽  
pp. 399-408 ◽  
Author(s):  
MH Kabir ◽  
MN Bari ◽  
M Moynul Haque ◽  
GJU Ahmed ◽  
JMS Islam
Keyword(s):  
Water Management ◽  
Grain Yield ◽  
Weed Control ◽  
Management Practices ◽  
Weed Biomass ◽  
Weed Density ◽  
Control Efficiency ◽  
Free Treatment ◽  
Weed Control Efficiency ◽  
Hand Weeding

A study was conducted from June to December 2003 to assess weed dynamics and yield performance of transplanted aman rice (cv. BRRI Dhan39) in different weed control treatments e.g. two hand weedings at 15 and 40 DAT; Weeding by BRRI Weeder at 20 and 40 DAT; Rifit 500EC @ 1L/ha at 7 DAT; Rifit 500EC @ 1 L/ha at 7 DAT and one hand weeding at 40 DAT; Butachlor 5G @ 2 kg/ha at 7 DAT; Butachlor 5G @ 2 kg/ha at 7 DAT and one hand weeding at 40 DAT along with weed free and unweeded check under both good and poor water management practices. Weed density, weed biomass and weed control efficiency were significantly influenced by different weed control treatments under both water management practices. Other than weed free treatment, Butachlor 5G @ 2 kg/ha applied at 7 DAT along with one hand weeding at 40 DAT showed the best performance under good water management with minimum weed density (16 g/m2) as well as weed biomass (9.27 g/m2) and the highest weed control efficiency (82.57%). Yield and yield components were also significantly influenced by different weed control treatments and water management. The highest grain yield (5.22 t/ha) was obtained under good water management in weed free treatment followed by Butachlor 5G @ 2 kg/ ha and one hand weeding (4.96 t/ha) under same water management. Results revealed that integration of approaches, particularly Butachlor application along with one manual weeding accompanied by proper water management might be the best option to combat weed problems as well as to obtain satisfactory grain yield in transplanted aman rice. Key Words: Transplanted aman rice, water management, weed control treatment and yield. doi:10.3329/bjar.v33i3.1599 Bangladesh J. Agril. Res. 33(3) : 399-408, September 2008

scholarly journals Performance of pearl millet under agri-horti system as influenced by sowing methods and integrated nutrient management in Vindhyan region of Uttar Pradesh, India

2018 ◽  
Vol 10 (1) ◽  
pp. 482-486
Author(s):  
S. K. Verma ◽  
Ugrasen Yadav ◽  
Sushil Kumar ◽  
Kairovin Lakra
Keyword(s):  
Pearl Millet ◽  
Management Practices ◽  
Nutrient Management ◽  
Poultry Manure ◽  
Dry Weight ◽  
Integrated Nutrient Management ◽  
Panicle Length ◽  
Yield Attributes ◽  
Net Returns ◽  
Stover Yield

An experiment involving three sowing methods and four integrated nutrient management practices was undertaken at Rajeev Gandhi South Campus, Banaras Hindu University in factorial randomized complete block design with three replications. The aim of the study was to assess the effects of sowing methods and integrated nutrients management practices on performance of pearl millet under agri-horti system. The sowing methods and integrated nutrient management practices significantly (P=0.05) influenced performance of pearl millet. Adoption of ridge and furrow sowing method recorded higher growth [plant height (147.7 cm), dry weight (72.7 g), and number of tillers plant-1 (2.0)], yield attributes [effective tillers hill-1 (1.77), panicle length (17.9 cm), grains panicle-1 (1508.3), grains weight panicle-1 (13.9), and test weight (9.23 g)], yields [ grain yield (1412 kg ha-1 ), and stover yield (3972 kg ha-1 )], and economics [net returns (Rs. 36371 ha-1 ), and B:C ratio (1.79) than broadcasting and raised bed. Application of 50% recommended dose of fertilizer + 50% poultry manure resulted higher growth [plant height (151.9 cm), dry weight (79.7 g), and number of tillers plant-1 (2.22)], yield attributes[effective tillers hill-1 (2.0), panicle length (18.8 cm), grains panicle-1 (1615.6), grains weight panicle-1 (14.5), and test weight (9.76 g)], yields [ grain yield (1552 kg ha-1 ), and stover yield (4360 kg ha-1 )] and economics [net returns (Rs. 38227 ha-1 ), and B:C ratio (1.77) than remaining integrated nutrient management practices. The combination of ridge and furrow and 50% recommended dose of fertilizer + 50% poultry manure was adjudged to be better for pearl millet performance.

Response of Cowpea [Vigna unguiculata (L.) Walp.] as Succeeding Crop to Residual Effect of Extreme Levels of Atrazine Administered in Preceding Maize (Zea mays L.)

2021 ◽  
Author(s):  
G. Bagwasi ◽  
C.R. Chinnamuthu ◽  
P. Murali Arthanari ◽  
P. Malarvizhi ◽  
C.N. Chandrasekhar
Keyword(s):  
Weed Control ◽  
Field Experiments ◽  
Block Design ◽  
Residual Effect ◽  
Cropping System ◽  
Dry Weight ◽  
Grain Legumes ◽  
Weed Density ◽  
Control Efficiency ◽  
Weed Control Efficiency

Background: Globally, grain legumes are the paramount family of agricultural crops following cereals. Generally, sequence cropping has manifested effectual in increasing farm productivity and profitability. However, sometimes herbicides administered in previous crop may be associated with phytotoxic effects that can later cause damage to the succeeding crops. The present study aimed to understand the residual effect of extreme levels of atrazine on succeeding cowpea under maize-cowpea cropping system. Methods: Field experiments were conducted during Kharif and rabi season of 2019-20 and 2020-21 in a randomized block design with eleven treatments, replicated thrice. Result: Residual effect of pre-emergence atrazine at 0.50 kg a.i. ha-1 followed by tembotrione at 120g a.i. ha-1 as post-emergence at 25 DAS recorded the lowest total weed density (4.41), total weed dry weight (9.81 g m-2) and highest weed control efficiency (39.25%) during rabi 2019-20 while during rabi 2020-21 lowest total weed density (5.03), total weed dry weight (10.68 g m-2) and highest weed control efficiency (39.65%) were noticed in pre-emergence atrazine 50% WP at 2.00 kg a.i. ha-1. Highest seed yield (788.67 and 842.33 kg ha-1) was obtained in weed free treatment.

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