Bio-Efficacy of different tank mix herbicides for weed control in soybean [Glycine max (L.) Merrill]

2018 ◽  
Author(s):  
Jai Prakash Bhimwal ◽  
Arvind Verma ◽  
Virendra Nepalia ◽  
Versha Gupta
Keyword(s):  
Weed Control ◽  
Cynodon Dactylon ◽  
Cyperus Rotundus ◽  
Control Treatment ◽  
Yield Attributes ◽  
Commelina Benghalensis ◽  
Trianthema Portulacastrum ◽  
Glycine Max L ◽  
Herbicide Mixtures ◽  
Quizalofop Ethyl

A field experiment was conducted at the Rajasthan College of Agriculture, MPUAT, Udaipur during Kharif season 2015 and 2016 to adjudge the efficacy of different herbicide and herbicide mixtures against weeds in soybean. Monocot weeds were predominant (55.15%) in the experimental field compared with dicot weeds (44.85%). However, Echinochloa colona (41.56%) and Trianthema portulacastrum (33.16%) were predominant in soybean but, other weeds (Cyperus rotundus, Cynodon dactylon, Commelina benghalensis, Digera arvensis, Amaranthus viridis, Physalis minima, Corchorus spp.) were also present at 60 DAS. Among different weed control treatments, post-emergence and tank mix combination of propaquizafop + imazethapyr (75+75 g ha-1) and imazethapyr + quizalofop-ethyl (75+60 g ha-1) at 21 DAS were most effective in respect of reducing weed density, weed biomass, nutrient removal by weed and promote yield attributes and yield and quality of soybean as compared to rest of weed control treatment.

scholarly journals Performance of different tank mix herbicides for broad-spectrum weed control in soybean [Glycine max (L.) Merrill]

2018 ◽  
Author(s):  
Jai Prakash Bhimwal ◽  
Arvind Verma ◽  
Versha Gupta ◽  
S.K. Meena ◽  
B.D. Malunjkar
Keyword(s):  
Weed Control ◽  
Nutrient Removal ◽  
College Of Agriculture ◽  
Yield Attributes ◽  
Weed Density ◽  
Yield And Quality ◽  
Glycine Max L ◽  
Herbicide Mixtures ◽  
Quizalofop Ethyl

A field experiment was conducted at the Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology -Udaipur during Kharif season 2015 and 2016 to test the efficacy of different herbicide and herbicide mixtures against weeds in soybean. Monocot weeds were predominant (57.68 %) in the experimental field compared to Broad leaved weeds (42.31 %). However, Echinochloa colona (40.55 %) and Corchorus olitorius (23.68%) were dominant in soybean at 30 DAS. Among different weed control treatments, post-emergence and tank mix combination of propaquizafop + imazethapyr (75+75 g ha-1) and imazethapyr + quizalofop-ethyl (75+60 g ha-1) at 21 DAS were most effective in respect of reducing weed density, weed biomass, nutrient removal by weed and improving yield attributes, yield and quality of soybean compared to other treatments. Highest seed yield (2271 kg ha-1), Haulm yield (3127 kg ha-1) of soybean and maximum net return ( 51550/ha) were also recorded with propaquizafop 75 g ha-1 + imazethapyr 75 g ha-1 followed by imazethapyr + quizalofop-ethyl (75+60 g ha-1). Further, they were also found responsible for highest uptake of N, P and K in soybean and lowest uptake of these plant nutrients by weeds.

scholarly journals Efficiency of some herbicides and manual weeding for weed control in irrigated Bt cotton

2018 ◽  
Author(s):  
R.K. Mathukia ◽  
B.K. Sagarka ◽  
P.R. Mathukia ◽  
N.V. Savaliya
Keyword(s):  
Weed Control ◽  
Cynodon Dactylon ◽  
Chenopodium Album ◽  
Dry Weight ◽  
Cyperus Rotundus ◽  
Growth And Yield ◽  
Cotton Field ◽  
Bt Cotton ◽  
Seed Cotton ◽  
Yield Attributes

To evaluate the efficacy of some pre and post-emergence herbicides for weed control in Bt cotton (var. Beejdhan 2), a field experiment was conducted during rainy seasons of 2014-15, 2015-16 and 2016-17 at Junagadh (Gujarat, India). The dominant weed flora in cotton field were Digera arvensis, Eluropus villosus, Cyperus rotundus, Cynodon dactylon, Echinochloa crusgalli, Chenopodium album, Convolvulus arvensis, Trianthema monogyna, Amaranthus spinosus, Commelina benghalensis and Asphodelus tenuifolius. The results revealed that treatments viz., hand weeding (HW) and interculturing (IC) at 30, 60 and 90 DAS, pendimethalin 0.9 kg ha-1 as pre-emergence fb HW and IC at 30 and 60 DAS, and pendimethalin 0.9 kg ha-1 as pre-emergence fb quizalofop 40 g ha-1 as post-emergence at 45 DAS were found superior to the unweeded check in enhancing growth and yield attributes viz., plant height, number of monopodial and sympodial branches plant-1, number of bolls plant-1, single boll weight and seed cotton weight plant-1 and ultimately increased seed cotton and stalk yields. These treatments also recorded lower dry weight of weeds and weed index along with higher weed control efficiency, net return and B:C ratio as compared to unweeded check.

scholarly journals Efficacy and selectivity of pendimethalin for weed control in soybean (Glycine max (L.) Merr.), Gezirastate, Sudan

2020 ◽  
Vol 7 (1) ◽  
pp. 59-68
Author(s):  
Suhaip Zain ◽  
Awadallah Dafaallah ◽  
Mohamed Zaroug
Keyword(s):  
Weed Control ◽  
Descriptive Analysis ◽  
Growth And Yield ◽  
Control Treatment ◽  
Research Station ◽  
Test Results ◽  
Yield Attributes ◽  
Broad Leaf ◽  
Weed Infestation ◽  
Glycine Max L

Objective. The aim of the present study was to evaluate the effi cacy and selectivity of the herbicide pendimethalin on weed control in soybean at Gezira State, Sudan. Methods. A fi eld experiment was carried out at Gezira Research Station Farm, Wad Medani, Sudan during summer season 2018/2019. The pendimethalin (Pendimight 500 EC®) was applied at three doses as pre-emergence treatment. The doses were 1.339, 1.785 and 2.232 Kg a.i./ha. Weeded and un-wedded treatments were included for comparison. The treatments were arranged in a randomized complete block designed with four replicates. Data were subjected to descriptive analysis and analysis of variance procedure (P ≤ 0.05). Signifi cant means were separated using Duncan’s Multiple Range test. Results. The results showed that all herbicide treatments were effective in weed control. They signifi cantly reduced weed infestation compared to un-weeded control and signifi cantly promoted the yield and various growth characters of soybean over un-weeded control treatment, except pendimethalin at the dose of 2.232 Kg a.i./ha which only reduced the plant population by 7% due to a phytotoxicity effect on soybean as compared to un-weeded control treatment. Application of pendimethalin at the dose 1.339 kg a.i./ha signifi cantly controlled grasses and broad leaf weeds in soybean. It was also found superior in respect of various growth and yield attributes. Highest seed yield (1562.5 kg /ha) was recorded under pendimethalin treatment at a dose of 1.339 kg a.i./ha. Chemical analysis of soybean seeds showed that no residues of the tested herbicide were detected. Conclusions. It is concluded that the tested pre-emergence herbicide pendimethalin at the dose of 1.339 kg a.i./ha could be used effectively and safely in controlling weeds in soybean crop.

scholarly journals Weed control in soybean (Glycine max L.) through resource management strategies and its influence on yield and nutrient uptake

2017 ◽  
Vol 9 (1) ◽  
pp. 539-543
Author(s):  
Aradhana Bali ◽  
B. R. Bazaya ◽  
Sandeep Rawal
Keyword(s):  
Resource Management ◽  
Nutrient Uptake ◽  
Weed Control ◽  
Weed Management ◽  
Management Strategies ◽  
Climatic Conditions ◽  
Glycine Max L ◽  
Effect On Yield ◽  
Hand Weeding ◽  
Quizalofop Ethyl

A field experiment was conducted during kharif season of 2011 at Research Farm, Sher-e-Kashmir University of Agricultural Sciences and Technology, Chatha, Jammu to evaluate the effect of weed management prac-tices on yield and nutrient uptake of soybean utilizing different resource management strategies. The lowest weed density and dry matter of weeds was recorded with hand weeding at 15 and 35 days after sowing (DAS) which was equally effective as imazethapyr @ 75 g ha -1 (PoE) fb hoeing at 35 DAS and quizalofop-ethyl @ 40 g ha-1 (PoE) fb hoeing at 35 DAS. All weed control treatments had significant effect on yield and nutrient up-take of soybean. Among the different weed control treatments, lowest N, P and K uptake by weeds were recorded in hand-weeding (15 and 35 DAS) which was statistically at par with imazethapyr @ 75 g ha -1 fb hoeing at 35 DAS. The maximum uptake by seed and straw were recorded in weed free which was statistically at par with twice hand weeding at 15 and 35 DAS, imazethapyr @ 75 g ha-1 fb hoeing at 35 DAS and quizalofop-ethyl @ 40 g ha-1 fb hoeing at 35 DAS. The highest seed and straw yield of soybean was harvested with hand-weeding (15 and 35 DAS) followed by imazethapyr @ 75 g ha -1 fb hoeing at 35 DAS. For the first time, soybean crop has been introduced in Jammu region for research purpose. Weed management varies with agro-climatic conditions. The study would be helpful to understand weed menace in this particular climatic condition of Jammu and to manage them combinedly and efficiently.

scholarly journals Yield and yield attributes of sweet sorghum (Sorghum bicolor subspecies Saccharatum (L.) Moench. varieties as influenced by weed control treatments and plant population in the semi arid region of Nigeria

2018 ◽  
Vol 11 (1) ◽  
pp. 67-73
Author(s):  
H.J. Jantar ◽  
D.I. Adekpe ◽  
S.M. Bature ◽  
Y Hussaini
Keyword(s):  
Sorghum Bicolor ◽  
Weed Control ◽  
Sweet Sorghum ◽  
Agricultural Research ◽  
Plant Population ◽  
Grain Weight ◽  
Control Treatment ◽  
Yield Attributes ◽  
1000 Grain Weight ◽  
Semi Arid

Field trial was conducted during the 2012 and 2013 wet seasons at Institute for Agricultural Research,Ahmadu Bello University, Zaria Farms at Kadawa and Minjibir, (110 39’N, 080 20’E) and Kano (120 08’ N, 080 40’ E)500m above sea level in the Semi arid ecological zone of Nigeria, to study the influence of weed control treatment and plant population on yield and yield attributes of sweet sorghum (Sorghum bicolor (L.)Moench. sub-species. saccharatum) varieties. The treatments consisted of four levels of weed control treatment (one rate each of atrazine and primextra gold at 2.1 kg a.i/ha, hoe-weeded control at 3 and 6 weeks after sowing (WAS) and weedy check), three plant densities (53,333, 106,667, and 160,000 plants/ha), and two varieties(NTJ2 and Ex-Daura). The treatments were laid out in a split plot design with three replications. The combination of weed control treatment and the plant population were assigned to main plot while the two varieties to sub-plot. The study revealed that primextra gold at 2.1 kg a.i/haand two hoe-weeding at 3 and 6 WAS resulted in significantly longer panicle length, higher 1000-grain weight, stalk, grain, and brix yields in both seasons and locations.T he performance of this herbicide was comparable to hoeweeding in keeping the trial fields weed free and lower competition for nutrients at both location seasons. Weedy check reduced all yields and yield attributes. The 160,000 plants/ha significantly suppressed weed infestation and resulted in longer panicles, higher 1000-grain weight, stalk, grains and brix yields at the two the locations and seasons. NTJ2 performed better in term yield and yield attributes, with higher stalk yield at Kadawa and grain yield at Minjibir. Based on the result obtained from this , it can be concluded that the use of NTJ2 variety, with application of primextra gold at 2.1 kg a.i/ha, and 160,000 plant population and NTJ2 variety had resulted gave season long weed control, the highest stalk and grain yields at Kadawa and Minjibir.Keywords: Grainand stalk yields, plant population, sweet sorghum and weed control

Effect of weed control practices on weed dynamics, yield and economics of soybean [Glycine max (L.) Merrill]

2015 ◽  
Author(s):  
K. Nandini Devi ◽  
Kh. Lenin Singh ◽  
CNJS Arangba Mangang ◽  
N. Brajendra Singh ◽  
Herojit Singh Athokpam ◽  
...  
Keyword(s):  
Weed Control ◽  
Dry Matter ◽  
Block Design ◽  
Randomized Block Design ◽  
Glycine Max L ◽  
Chlorimuron Ethyl ◽  
Weed Dynamics ◽  
Hand Weeding ◽  
Quizalofop Ethyl ◽  
Weed Emergence

The experiment was laid out in randomized block design with three replications and eight weed control treatments viz., weedy check, polythene mulching as pre emergence (PE), pendimethalin30EC (PE), chlorimuron ethyl 9g ha-1as post emergence (POE), quizalofop ethyl 50g ha-1 (POE), imazethapyr 100g ha-1 as early post emergence (EPOE), one hand weeding at 40 days after sowing (DAS) and two hand weeding at 20 and 40 DAS. The results showed that polythene mulching had the lowest weed dry matter due to effectively suppression of weed emergence. It was followed by twice hand weeding at 20 and 40 days after sowing. Weed index was found to be the highest with weedy check (42.10%) followed by the pre-emergence application of pendimethalin (19.09%). The effect of herbicide applied as pre-emergence was subdued at this belated stage, which may possibly be on account of longer period after application and restricted effective residual period. Plant height, number of pods per plant and grain yield of soybean was found to be highest in the treatments twice hand weeding at 20 and 40 DAS as well as polythene mulching. However, the net return and B:C ratio was lower in comparison to imazethapyr and quizalofop ethyl due to higher cost of labour and polythene material respectively. On an average, the application of imazethapyr as early post emergence (3.17) and quizalofop ethyl (3.02) gave significantly highest B:C ratio than the other treatments for soybean.

The effect of application rate of chemical herbicides on weed control and yield in early potatoes

1971 ◽  
Vol 77 (2) ◽  
pp. 243-246
Author(s):  
Maurice Eddowes
Keyword(s):  
Weed Control ◽  
Field Experiments ◽  
Sandy Loam ◽  
Low Cost ◽  
Application Rate ◽  
Control Treatment ◽  
Application Rates ◽  
Herbicide Mixtures ◽  
Rate Controlled ◽  
Annual Weeds

SummaryIn a series of field experiments from 1966 to 1969, on light sandy loam soils in the West Midlands, comparisons were made between two levels of application of herbicides based on urea, triazine and bipyridil compounds for weed control in early potatoes.Under conditions of adequate nutrient and water supply, the high application rate controlled about 94%, and the low application rate about 88% of the annual weeds. At equivalent application rates, urea compounds and herbicide mixtures containing ureas, gave superior weed control to triazine compounds and herbicide mixtures containing triazines, but the ureas were apparently more phytotoxic to the potatoes.In 1970, comparisons were made between three levels of application of ametryne and monolinuron, high, medium and low and an unsprayed control treatment.The highest yields of potatoes were associated with the low application rates of herbicides from 1966 to 1970.It was concluded that, on these light sandy loam soils, when irrigation is available, relatively low application rates of either monolinuron or ametryne, or mixtures of ureas or of triazines, or mixtures of bipyridils and ureas or triazines could give adequate control of annual weeds in early potatoes at low cost.

scholarly journals Sifat campuran herbisida berbahan atrazin 500g/L+ mesutrion 50 g/L terhadap beberapa jenis gulma

Kultivasi ◽  
2018 ◽  
Vol 17 (2) ◽  
Author(s):  
Dedi Widayat ◽  
Uum Umiyati ◽  
Yayan Sumekar ◽  
Dani Riswandi
Keyword(s):  
Weed Control ◽  
Linear Regression Analysis ◽  
Cyperus Rotundus ◽  
Ageratum Conyzoides ◽  
Digitaria Sanguinalis ◽  
A Value ◽  
Herbicide Mixture ◽  
Herbicide Mixtures ◽  
Four Levels ◽  
Cleome Rutidosperma

AbstrakGulma bila tidak dikendalikan dapat menurunkah hasil tanaman 20% sd 80%, untuk itu pengendalian gulma mutlak diperlukan. Pengandalian gulma dengan menggunakan herbisida tunggal bila dilakukan terus menerus akan menimbulkan gulma resisten, untuk mengnangulanginya perlu dilakukan pencampuran herbisida. Campuran herbisida dengan dua atau lebih jenis bahan aktif dapat bersifat sinergis, aditif, atau antagonis. Tujuan penelitian adalah untuk mengetahui sifat campuran herbisida Atrazin 500g/L + Mesutrion 50 g/L terhadap beberapa jenis gulma. Penelitian dilakukan pada bulan Maret-Juni 2017, di Laboratorium Kultur Terkendali Universitas Padjadjaran, Jatinangor. Perlakuan terdiri dari tiga jenis herbisida dengan empat tingkat dosis, yaitu herbisida tunggal Atrazine (1080, 540, 270, 135, 0  g /ha), Mesutrion (196, 98, 49, 24,5, 0 g/ha) dan campuran herbisida dari Atrazin 500g/L+ Mesutrion 50 g/L (880,440, 220,110,0 g/ha) dengan empat ulangan. Gulma target adalah Cyperus rotundus, Axonopus compressus, Digitaria sanguinalis, Ageratum conyzoides, Alternanthera piloxeroide,, Cleome rutidosperma.  Data dianalisis dengan analisis regresi linier dan metode MSM untuk menentukan perlakuan LD50 dan harapan LD50. Hasil penelitian menunjukkan Herbisida Campuran Atrazin 500g/L + Mesutrion 50 g/L memiliki nilai LD50 Harapan sebesar 0.097 g ai/ha dan nilai LD50 perlakuan sebesar 0.0283 g ai/ha dengan kotoksisitas sebesar 3.416 ( > 1) menandakan sifat campuran yang sinergis pada keenam gulma yang diuji yaitu A. conyzoides, A. piloxeroide,, C. rutidosperma, C. rotundus, A. compressus, D. sanguinalis.Keywords: Atrazine, Mesutrion , Herbisida campuran, gulma.AbstractWeed can decrease the yield of plants 20% to 80% if they cannot be controlled, so weed control is absolutely necessary. Weed control by using a single herbicide continuously will cause weeds resistant, so it is necessary to mix herbicides. Combinations of herbicide with two or more types of active ingredient can be synergistic, additive, or antagonistic. The purpose of the study was to determine the characteristic of the herbicide mixture of Atrazine 500 g / l + Mesutrion 50 g / l for several types of weeds. The study was conducted in March – June 2017, at the Controlled Culture Laboratory, Padjadjaran University, Jatinangor. The treatment consisted of three types of herbicides with four levels of dosage, namely Atrazine herbicide (1080, 540, 270, 135, 0 g/ha), Mesutrion herbicide (196, 98, 49, 24.5, 0 g/ha) and herbicides mixtures Atrazine 500 g/L + Mesutrion 50 g/L (880,440, 220,110.0 g/ha) with four replications. Target weeds were Cyperus rotundus, Axonopus compressus, Digitaria sanguinalis, Ageratum conyzoides, Alternanthera piloxeroide, Cleome rutidosperma. Data were analyzed by linear regression analysis and MSM method to determine LD50 treatment and LD50 expectations. The results showed that Atrazine 500 g/L + Mesutrion 50 g/L Herbicides Mixed had a value of Hopeful LD50 of 0.097 g ai/ha and LD50 treatment value of 0.0283 g ai/ha with a co-toxicity of 3.416 (> 1) that indicating a synergistic mixture in the sixth weeds tested are A. conyzoides, A. piloxeroide, C. rutidosperma, C. rotundus, A. compressus, D. sanguinalis.Keywords: Atrazine, Mesutrion , herbicide mixtures, weeds

scholarly journals Chemical management of Cyperus rotundus L. and other weeds at sugarcane in PSS system

2021 ◽  
Vol 37 ◽  
pp. e37056
Author(s):  
Ana Ligia Giraldeli ◽  
André Felipe Moreira Silva ◽  
Luisa Carolina Baccin ◽  
Lucas da Silva Araújo ◽  
Gustavo Soares da Silva ◽  
...  
Keyword(s):  
Weed Control ◽  
Seed Bank ◽  
Block Design ◽  
Cyperus Rotundus ◽  
Control Treatment ◽  
Agronomic Performance ◽  
Control Variables ◽  
Purple Nutsedge ◽  
Chemical Management ◽  
Randomized Complete Block Design

Among the main weeds with difficult to control in the sugarcane fields can be cited purple nutsedge (Cyperus rotundus L.). This specie was observed in the seed bank in sugarcane fields harvested with or without burning. The objective of this study was to evaluate the efficacy of herbicides in pre-sprouted seedlings (PSS) of sugarcane in the control of C. rotundus and other weeds. The work was carried out in the field, in a randomized complete block design, and four replications. The treatments corresponded to the herbicides applied in pre-planting: sulfentrazone (800 g a.i. ha-1), diclosulam (193.17 g a.i. ha-1), imazapic (133 g a.i. ha-1) and imazapyr (500 g a.e. ha-1); post-planting: halosulfuron (112.5 g a.i. ha-1), ethoxysulfuron (135 g a.i. ha-1), MSMA (1,975 g a.i. ha-1) and 2,4-D (1,340 g a.e. ha-1); besides a control treatment weeding and another without weeding. The symptoms of injury on sugarcane plants, percentage of weed control, variables related to agronomic performance of sugarcane, and yield were evaluated. The herbicides diclosulam, imazapic, and imazapyr caused serious damage to the crop. The halosulfuron, ethoxysulfuron, MSMA, and 2,4-D did not cause symptoms of injury to sugarcane, however, the treatments had a reduced yield due to the low weed control. The sulfentrazone treatment obtained the second highest yield but with effective weed control (>70%) up to 45 days after planting. The best controls were obtained with pre-planting treatments; however, herbicide positioning studies should be performed in relation to PSS.

Effect of weed management and sulphur on weed dynamics, soybean (Glycine max) yield and associated quality traits

2017 ◽  
Author(s):  
K. K. Meena ◽  
V. Nepalia ◽  
Dilip Singh ◽  
Mahendra Sharma ◽  
B. Upadhyay
Keyword(s):  
Glycine Max ◽  
Weed Control ◽  
Weed Management ◽  
Dry Matter ◽  
Yield And Quality ◽  
Glycine Max L ◽  
Biological Yield ◽  
Main Plot ◽  
Weed Dynamics ◽  
Quizalofop Ethyl

A field experiment was conducted during rainy seasons of 2011 and 2012 at Udaipur to evaluate the effect of weed control and sulphur on yield and quality of soybean [Glycine max (L.) Merrill]. The twenty eight treatment combinations comprising 7 weed management treatments (weedy check, pendimethalin 1.0 kg ha-1 pre- emergence, quizalofop-ethyl 50 g ha-1 and imazethapyr 100 g ha-1 post-emergence at 15 DAS, pendimethalin, quizalofop-ethyl and imazethapyr followed by hoeing and weeding at 30 DAS) in main plot and 4 rates of sulphur application (00, 20, 40 and 60 kg ha1) in sub plot were laid out in split plot design with three replications. All weed control treatments reduced weed dry matter at harvest during both the years. Pendimethalin followed by hoeing and weeding at 30 DAS was significantly superior in reducing weed dry matter of broad-leaved, narrow-leaved and total weeds at harvest over rest of the treatments. All weed control treatments significantly enhanced straw and biological yield of soybean over weedy check. Pendimethalin followed by hoeing and weeding at 30 DAS produced significantly higher pooled seed (2168 kg ha-1), straw (3167 kg ha-1) and biological (5335 kg ha-1) yields compared to other treatments. Sulphur rates had no significant effect on weed dry matter at harvest. Across the years, increasing level of S application up to 40 kg ha-1 resulted in significantly increased straw yield, biological yield and harvest index of soybean. Increasing rate of sulphur application up to 40 kg ha-1 tended to significantly increase protein and oil yield.

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