scholarly journals Assessment of Integrated Weed Management in Green gram (Vigna radiata L.)

2021 ◽  
Vol 9 (4) ◽  
pp. 169-172
Author(s):  
Pritesh Doble ◽  
Keyword(s):  
Weed Control ◽  
Seed Protein ◽  
Control Method ◽  
Block Design ◽  
Green Gram ◽  
Control Treatment ◽  
Net Income ◽  
Yield Attributes ◽  
Hand Weeding ◽  
Better Than

A field experiment was carried out during rainy (Kharif) season of 2019-20 at the research farm of AKS University, Satna, Sherganj, Madhya Pradesh. The treatments comprised twelve mechanical and chemical weed control treatment as detailed in chapter III. The experiment was laid out in randomized block design with three replications. An uniform dose of 25 kg N and 50 kg P2O5 and 25 kg K2O/ha was applied through urea, SSP and MOP, to all the experimental plots. Moongbean var. Shikha was sown on 13 July, 2019 keeping a seed rate of 25 kg/ha and row spacing of 30 cm. The plant to plant spacing of 10 cm was maintained by thinning. The weedicides were applied with or without hand weeding once or twice as per treatments. The crop was harvested on 17-23 September, 2019. Amongst the mechanical and chemical weed control method (IWM), hand weeding twice (weed-free condition) proved the best which enhanced significantly higher growth, yield attributes, yield and seed protein of green gram. The seed yield was up to 0.80 t/ha, net income up to Rs.29805 /ha and seed protein 24.46 %. Thereafter each of the herbicides applied along with hand hoeing proved for better than herbicide applied alone. Quizalofop-p-ethyl 700 g/ha with hand hoeing proved better than other three herbicide with hand hoeing. Therefore looking to the labour problem for hand weeding quizalofop + hand hoeing may be adopted to gain maximum benefit from green gram.

scholarly journals Important Weeds and Their Control in Soybean Production under Rice-Soybean Cropping Pattern

2019 ◽  
Vol 17 (2) ◽  
pp. 66
Author(s):  
Arief Harsono ◽  
Suryantini Suryantini ◽  
Siti Muzaiyanah
Keyword(s):  
Weed Control ◽  
Control Method ◽  
Block Design ◽  
Cyperus Rotundus ◽  
Control Treatment ◽  
Research Station ◽  
Cropping Pattern ◽  
Soybean Production ◽  
Hand Weeding ◽  
Production Areas

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>Weed control is one of technology components in soybean production that needs high labor and cost. The objective of this study was to determine the major weeds and their controls for soybean grown after rice in lowland. The study was conducted in two stages. The first stage was a survey to observe the major weeds in soybean crops grown after rice in the farmers’ fields at three </span>central soybean production areas in Banyuwangi, namely Gambiran, Purwoharjo, and Tegal Dlimo subdistricts. The second stage was a trial conducted in lowland after rice in Genteng Research station, Banyuwangi during the dry season of 2013. The treatments were arranged in a randomized completely block design with three replications. The treatments consisted of: 1) without weed control, 2) weeding twice, 3) preemergence herbicide oxyfluorfen,(4) oxyfluorfen + postemergence 2,4-D dimethylamide, (5) oxyfluorfen + once hand weeding, and (6) once hand weeding. The results indicated that the major weeds were Oryza sativa, Cyperus rotundus, Ageratum sp., Echinochloa crusgalli, and Pilantus niruri consecutively. The weeds were effectively controlled by applying preemergence herbicide oxyfluorfen. This control method reduced the major weeds significantly and showed the same increase in seed yield as in other treatments (one and twice hand weeding) compared to the control treatment (without weeding).The soybean yield obtained from the treatment of without weeding,one hand weeding,and using oxyfluorfen herbicide was 0.60 t/ ha, 1.87 t/ha, and 1.93 t/ha, respectively.The use of oxyfluorfen herbicide is more efficient in terms of labor use than that of hand weeding. </p></div></div></div><p> </p>

scholarly journals Efficacy of chemical and cultural weed management practices on nutrient uptake in black gram (Phaseolus mungo)

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 121-125
Author(s):  
Kavita D. Rajput ◽  
J. P. Bholane ◽  
A.S. Latkar ◽  
V.M. Bhale
Keyword(s):  
Nutrient Uptake ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Cultural Practices ◽  
Block Design ◽  
Control Treatment ◽  
Black Gram ◽  
Randomized Block Design ◽  
Hand Weeding

The results of the field experiment carried out during kharif season of 2010 at agronomy department farm, Dr.P.D.K.V.,Akola revealed that N,P,K uptake by black gram (Phaseolus mungoL.) and weeds were significantly higher under weed free and weedy check treatments among all of the weed control treatments. The experiment was laid out in Randomized Block Design replicated three times with thirteen treatments, in that chemical and cultural treatments were compared with weedy check and weed free control. Herbicide application in general and pre-emergence application of pendimethalin @1.5kg/ha in particular reduced the nutrients removal by weeds and enhanced the nutrient uptake by the crop followed by cultural practices of two hand weeding at 15 & 30 days after sowing. The pre-emergence application of pendimethalin in @ 1.5 kg/ha recorded highest nutrient uptake in grain (34.92, 6.50, 34.16 NPK kg/ha resp.) and strover (63.26, 10.60, 57.60 NPK kg/ha resp.) among all the weed control treatment except weed free treatment. The crude protein content of grain was the highest with pre-emergence application of pendimethalin @ 1.5 kg/ha (21.65) followed by pendimethalin @ 1.0 kg/ha (21.55).

Development of Efficient Weed Management Practices for Drilled Paddy Production under Gujarat condition

2019 ◽  
Vol 6 (02) ◽  
Author(s):  
R, V Hajari ◽  
R G MACHHAR ◽  
A. K. Mahida ◽  
G D HADIYA ◽  
A K MAHIDA
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Block Design ◽  
Growth And Yield ◽  
Research Station ◽  
Yield Attributes ◽  
Straw Yield ◽  
Randomized Block Design ◽  
Hand Weeding

To study the weed management in drilled paddy an experiment was conducted at Agriculture Research Station, Anand Agricultural University, Derol Dist: panchmahal, Gujarat during kharif seasons of the years 2012-13, 2013-14 ,2014-15 and 2015 -16 . Ten treatments for weed management were studied in randomized block design with four replications. Results that all the growth and yield attributes except plant height and test weight were significantly influenced due to different weed control treatments. The grain and straw yield of drilled paddy were also altered significant due to weed control treatments. In general, T2 (two hand weeding at 20 and 40 DAS) recorded the highest yield among all. It was, however, at par with three other treatments which included pre and post emergence application of herbicides. Since, the application of Oxadiargyl @ 90 g/ha f/b Bisbyribac sodium @ 25 g/ha at 20 DAS is one among the dual application of herbicide, it can be recommended for drilled paddy in options of two hand weeding.

scholarly journals Integration of chemical and manual control methods for sustainable weed management in inbred and hybrid rice

2017 ◽  
Vol 15 (2) ◽  
pp. 158-166
Author(s):  
Fahima Sultana Popy ◽  
AKM Mominul Islam ◽  
Ahmed Khairul Hasan ◽  
Md Parvez Anwar
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Hybrid Rice ◽  
Block Design ◽  
Yield Attributes ◽  
Free Treatment ◽  
Randomized Complete Block Design ◽  
Hand Weeding

Herbicidal weed control is gaining popularity in the developing countries but its efficacy still remains unclear. Therefore, an experiment was conducted to find out appropriate weed management practices for inbred and hybrid rice. The experiment comprised of inbred and hybrid varieties (two of each), and eight weed control treatments arranged in randomized complete block design with three replicates. Hybrid varieties performed better in terms of yield attributes and yield than inbred varieties. The highest grain yield (5.3 t ha−1) was obtained from the hybrid Agrodhan-12 and the lowest one (4.3 t ha−1) was from inbred Binadhan-7. Weed free treatment resulted in the highest grain yield (6.1 t ha−1) and the lowest one was with weedy treatment (1.96 t ha−1). The highest grain yield was obtained from Agrodhan-12 in weed free condition (6.9 t ha-1), while the lowest value was in inbred BRRI dhan49 under weedy condition (1.73 t ha−1). Weed-free treatment and the treatments of Pretilachlor fb Penoxsolum, Pretilachlor fb hand weeding, and Pendimethalin fb hand weeding showed similar performances in reducing weed density and eventually resulted in similar and the highest grain yield. Based on these results it may conclude that Pretilachlor applied at 2 days after transplanting (DAT) fb Penoxsolum at 21 DAT is the best weed management option. But from sustainability viewpoint, Pretilachlor or Pendimethalin applied at 2 DAT along with one hand weeding at 35 DAT may be recommended for effective weed management in inbred and hybrid rice during monsoon season.J. Bangladesh Agril. Univ. 15(2): 158-166, December 2017

scholarly journals Weed control and productivity of maize (Zea mays L.) in Malete, Kwara State of Nigeria

2020 ◽  
Vol 53 (2) ◽  
pp. 63-71
Author(s):  
Emmanuel Oyamedan Imoloame
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Control Method ◽  
Block Design ◽  
Field Trials ◽  
State University ◽  
Application Rates ◽  
Hand Weeding ◽  
Statistical Analysis Software ◽  
Range Test

AbstractThe need to determine the minimum application rates of commonly used herbicides in Malete and the Guinea savanna of Nigeria for effective weed control and higher grain yield of maize, triggered this study. Therefore, field trials were conducted at the Teaching and Research Farm of Kwara State University, Malete, to determine the weed control method that will be more effective in controlling weeds and give higher grain yield and cash returns in the production of maize. The experiment consisted of 9 treatments viz: primextra (metolachlor plus atrazine) + 2,4-D at 1.5 + 1.5 kg active ingredient (a.i.).ha−1, primextra + 2,4-D at 2.0 + 2.0 kg a.i. ha−1, primextra + 2,4-D at 2.5 + 2.5 kg ha−1, primextra + nicosulfuron at 1.5 + 0.03 kg a.i. ha−1, primextra + nicosulfuron at 2.0 + 0.05 kg a.i. ha−1, primextra + niconsulfuron at 2.5 + 0.07 kg a.i. ha−1, primextra at 1.5 kg a.i. ha−1 + one Supplementary Hoe Weeding (SHW) at 6 Weeks After Sowing (WAS), two hand weeding at 3 and 6 Weeks After Sowing (WAS) and a weedy check. These treatments were laid out in randomised complete block design (RCBD) with three replicates. Data collected were subjected to analysis of variance using Statistical Analysis Software (SAS) package, after which means were separated using Duncan’s Multiple Range Test (DMRT). Results showed that treatment combinations of primextra + one SHW at 6 WAS, two hoe weeding at 3 and 6 WAS, primextra + 2,4-D at 2.0 + 2.0 kg a.i. ha−1 and primextra + nicosulfuron at 2.0+0.05 kg a.i. ha−1 gave effective weed control, higher grain yield and cash returns. Therefore, primextra at 1.5 kg a.i. ha−1 + one SHW at 6 WAS, primextra +2,4-D at 2.0 + 2.0 kg a.i. ha−1 and primextra + nicosulfuron at 2.0 + 0.05 kg a.i. ha−1 are recommended to farmers as alternative to two hoe weeding at 3 and 6 WAS.

scholarly journals Solarization for Weed Control in a Short-season Climate

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 429A-429
Author(s):  
Jo Ann Robbins ◽  
Carol Blackburn
Keyword(s):  
Weed Control ◽  
Control Method ◽  
Control Treatment ◽  
Community Garden ◽  
Green Beans ◽  
Weed Growth ◽  
Soil Temperatures ◽  
Clear Plastic ◽  
Short Season ◽  
Better Than

A solarization site was established on the grounds of the Sawtooth Community Garden south of Ketchum, Idaho, in 1995. Feasibility of solarization for weed control was determined in a region of sunny, warm days and cool nights. Elevation of the site was 1829 m, with a growing season of 90 days. Treatments of double and single layers of clear and IRT plastic were applied 23 May 1995. These solarization treatments were compared to hand-hoeing, glyphosate sprays, and no control. Highest soil temperatures were reached under the double clear plastic, where daily peak temperatures ranged from 19 to 46C. Plastic treatments were removed on 30 Aug. 1995. Weed growth and growth of peas, green beans, carrots, and beets were recorded during the summer of 1996. Weed growth on 14 June 1996 ranged from 0.3 to 0.8 weeds/m2 in the solarization, hand-hoe, and glyphosate treatments and was 22.4 weeds/m2 in the no control treatment. On 20 Aug., weeds/m2 ranged from 1.4 to 2.0 in the solarization, hand-hoe, and glyphosate treatments and was 20.4 weeds/m2 in the no control treatment. At both dates there was no significant differences between weed control treatments, and any weed control method was significantly better than no control. Weight per plant of beets and beans was no different across all treatments. Carrot and pea plants were smaller in the no control treatments, and some variable differences were noted between weed control treatments. Results indicate that solarization in short-season, cool climates will result in little to no advantage over hand-hoeing or herbicide control of weeds, and no subsequent differences in crop growth can be expected.

scholarly journals Evaluation of plantain genotypes for yield and other characters

2018 ◽  
Vol 43 (1) ◽  
pp. 71-80
Author(s):  
N Ara ◽  
M Moniruzzaman ◽  
R Khatoon ◽  
M Moniruzzaman
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Fruit Size ◽  
Productivity Index ◽  
Maturity Stage ◽  
Research Station ◽  
Yield Attributes ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Better Than

An experiment was carried out at the Regional Agricultural Research Station, BARI, Ishurdi, Pabna during 2013-15, with eleven genotypes of plantain to evaluate their performances for yield attributes, yield and quality characters. The genotypes included in this investigation were MP001, MP002, MP003, MP006, MP007, MP015, MP018, MP024, MP025, ISD002 and BARI Kola-2 as check. The experiment was laid out in randomized complete block design with three replications. The genotype MP002 produced the maximum number of fingers/bunch (105.67) closely followed by BARI Kola-2 (103.00) and MP015 (101.00). Both the genotypes MP024 and MP025 showed the highest fruit length (21.70 cm), but ISD002 gave the maximum fruit girth (16.78 cm), which was statistically similar with that of MP003 (16.30 cm) and MP024 (16.33 cm). The highest yield and the maximum number of hands were produced by the genotype MP024 (47.81 t/ha and (8.33/bunch) followed by MP015 (36.70 t/ha and 6.33/bunch). Fingers of the genotypes required boiling time in the range of 20.00 min (MP001) to 15.00 min (BARI Kola-2). Flesh of all genotypes possesses pleasant aroma except MP002, MP003 and ISD002. Among the eleven genotypes MP001, MP006, MP007, MP008, MP015 and MP024 were found better when cooked as smashed. The genotype ISD002 took the maximum time (467.33 days) to reach the edible maturity stage of fruits whereas MP024 required the minimum (339.00 days). The genotypes MP015 and MP024 performed better than BARI Kola-2 in respect of bunch weight, fruit size, productivity index, yield, sucker production and qualitative characters.Bangladesh J. Agril. Res. 43(1): 71-80, March 2018

Economic Comparison of Mechanical and Chemical Weed Control

Weed Science ◽  
1968 ◽  
Vol 16 (3) ◽  
pp. 369-371 ◽  
Author(s):  
David L. Armstrong ◽  
J. K. Leasure ◽  
Mitchell R. Corbin
Keyword(s):  
Weed Control ◽  
Control Method ◽  
Economic Feasibility ◽  
Control Methods ◽  
Net Income ◽  
Small Item ◽  
Mechanical Methods ◽  
Two Factors ◽  
Complex Decision ◽  
Selection Of

The problem in determining the economic feasibility of mechanical, chemical, and combination weed control methods in corn (Zea mays L.) is a complex decision involving many factors. The effects of cost, yield, timeliness, and alternative uses of labor are the factors considered in comparing various methods of weed control in this study. Costs of weed control operations range from $2.84/A for two cultivations to $10.45/A for the most intensive, mechanical-chemical operation studied. Most common weed control methods have costs of approximately $3 to $4/A. Yields range from 83 bu/A for two cultivations to 96 bu/A with the highest cost chemical-mechanical weed control methods. All yields used in this study are supported by agronomic studies and are indexed on the basis of 100 bu/A for weed-free conditions. The consideration of both yields and costs does affect the selection of a weed control method. Considering only these two factors, mechanical methods have a slight advantage over chemical weed control methods. Penalizing mechanical methods because of delay or timeliness characteristics gives chemical methods an advantage by as much as $3.00/A. Alternative uses of labor, even though a common argument in selecting chemical or mechanical methods, is a very small item and has only moderate effects on the changes in net income.

Effect of cross ploughing on weed control of direct seeded rice in Manipur

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
K. Nandini Devi ◽  
M. Sumarjit Singh
Keyword(s):  
Weed Control ◽  
Agricultural Production ◽  
Field Experiments ◽  
Control Method ◽  
Minimum Cost ◽  
Plant Populations ◽  
Straw Yield ◽  
Economic Method ◽  
Direct Seeded ◽  
Hand Weeding

Field experiments were conducted at Research Farm, Central Agricultural University, Imphal during <italic>kharif</italic> 2011 and 2012 to study the effect of cross ploughing on weed control of wet- direct seeded rice in Manipur. Maximum plant population was observed in control and once hand weeding without cross ploughing treatments as compared to other treatments. But maximum number of panicles per metre square, grain and straw yield were significantly higher in cross ploughing thrice followed by cross ploughing twice than the other treatments after cross ploughing. Plant populations as well as number of weeds were significantly lower in the treatment cross ploughing thrice at 25 days after sowing. Thus cross ploughing twice at 25 days after sowing of wet –direct seeded rice was found to be the best economic method of weed control for obtaining highest B:C ratio with minimum cost of cultivation in both the years. This weed control method of cross ploughing in wetdirect seeded rice is of great significance in conserving the natural resources and maintaining the sustainability of the agricultural production system.

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.

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