Weed Management in Cowpea-A Review

Nisha, Kumari; Yadav, Nishant; Rathore, Rakesh Kumar D.K.; Makarana, Govind; Kushwah, Aakash; Meena, H. Ram R.K.; Singh, Magan

doi:10.20546/ijcmas.2017.602.156

Cited by 13 publications

(11 citation statements)

References 16 publications

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“…Walp. ; Fabaceae) is a widely adapted legume tolerant to water stress (Yadav et al, 2017;Oparaeke et al, 2018). Because of this, this crop has become very important socioeconomically and is widely cultivated in the northern, northeastern and mid-western regions of Brazil (Dias et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Chemical weed control (i.e. use of herbicides) has proven to be the most practical, effective and economical way to control accessible or inaccessible plants or harmful weeds (Yadav et al, 2017). There are no registered herbicides for cowpea in Brazil, which prevents recommendations; however, 27 and 55 herbicides are registered for crops belonging to the same botanical family (Fabaceae) such as the common bean (Phaseolus vulgaris L.) and soybean (Glycine max L.), respectively (Gonzaga et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Effect of the use of pre- and post-emergence herbicides on nodulation and production of cowpea (Vigna unguiculata L.) in the Amazonian savannah

et al. 2020

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As a control measure against weeds, the use of herbicides is an effective and inexpensive alternative. However, there are no products recommended for the cultivation of cowpea in Brazil, making it necessary to search for alternative solutions. The objective of this study was to evaluate the effect of herbicides applied in the pre- and post-emergence on cowpea nodulation and production under conditions of the Amazonian savannah. Two experiments were carried out in a randomized block design with four replicates, using the cowpea cultivar BRS Aracê subjected to the pre-emergence herbicides: Metribuzin, Sulfentrazone, Smetolachlor, Pendimethalin, Oxadiazon, Alachlor, Metribuzin + Pendimethalin, Metribuzin + Alachlor and Quizalofop-p-ethyl, Bentazon, Fomesafen, Imazethapyr, Imazamox + Bentazon, Quizalofop-p-ethyl + Imazethapyr, Quizalofop-p-ethyl + Imazamox and Quizalofop-p-ethyl + Bentazon, and post-emergence herbicides: Quizalofop-p-ethyl, Bentazon, Fomesafen, Imazethapyr, Imazamox + Bentazon, Quizalofop-p-ethyl + Imazethapyr, Quizalofop-p-ethyl + Imazamox, and Quizalofop-p-ethyl + Bentazon. The number of nodules in each plant, the dry matter of nodules, dry matter of roots and the grain yield were evaluated. According to the results obtained, the management of weeds in pre- or post-emergence according to the herbicide used affects the nodulation and productivity of cowpea under the conditions of the Amazonian savannah. The herbicides Metribuzin in preemergence,and Fomesafen and the mixture of Quizalofop-pethyl + Imazethapyr in post-emergence are not recommended for weed control in cowpea. The application of Oxadiazon, Alachlor, and Pendimethalin in pre-emergence can be considered interesting because they do not inhibit the development of the root system or the nodulation of cowpea which provides agreater grain yield. Regarding weed control strategies at postemergence, the application of the herbicide Imazethapyr and the combination of the herbicides quizalofop-p-ethyl + imazamox, Quizalofop-p-ethyl + Bentazon and Imazamox + Bentazon allow satisfactory levels of grain yield, root system development and nodulation of cowpea.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of the use of pre- and post-emergence herbicides on nodulation and production of cowpea (Vigna unguiculata L.) in the Amazonian savannah

et al. 2020

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“…The use of herbicides in cowpea to control weeds appears to be useful (Dadari, 2003;Silva, 2003), but are rarely used. Cowpea is more sensitive to herbicides than most of the other grain legumes crops, and there are limited herbicide options available that can provide a broad and long-lasting weed control throughout the cowpea growing season (Yadav et al, 2017). One of the widely studied cultural methods that can potentially supplement other weed control tools in weed suppression and increase cowpea yield is row-spacing (or seeding rate).…”

Section: Introductionmentioning

confidence: 99%

Economics of Weed Management Methods as Influenced by Row-Spacing in Cowpea

Osipitan¹,

Yahaya²,

Adigun³

2018

JAS

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Weed management is an important factor that influences the economic importance of cowpea as a cheap source of food and income for many farmers. A study was conducted to evaluate economic benefits of weed management methods used singly or in an integrated approach, and to understand the influence of row-spacing on economic benefits of weed management methods. Total variable cost of cowpea cultivation was substantially influenced by cost of weed control. A single input of hand weeding resulted in higher cost of weed control than a single input of PRE-herbicide for weed control. Increase in weed control inputs or frequency did not guarantee an increase in economic benefits. For example, removing weeds three times with hand at 3, 6 and 9 weeks after planting (WAP) during the cowpea growing season did not necessarily result in the highest yield, but rather increased the variable cost of weed control. Integrating PRE-herbicide and hand weeding for weed management resulted in the highest yield and gross profit. The lowest cost of weed control provided by using PRE-herbicide gave the highest benefit-cost ratio. The differences in economic values of weed management methods were mostly not affected by cowpea row-spacing, but generally, economic benefits of management methods decreased with increase in row-spacing. Practically, this study suggests that minimizing the use of hand weeding by complementing with PRE-herbicide for weed management could help to optimize yield, and increase profitability, particularly under a narrow row-spacing in cowpea cultivation.

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“…At 20 DAS, weed density and biomass was lowest where pendimethalin 700 g/ha PE + 1 Hand weeding equivalent to pendimethalin 1.0 kg ha -1 PE colleagues reported making comparable findings by Yadav et al (2017). At 40 DAS, suggestively lowermost value for weed thickness and biomass was documented with pendimethalin 700 g/ha PE + 1 Hand weeding tracked by hand weeding twice at 20 and 40 DAS (Table 1).…”

Section: Results Of Herbicides On Weedsmentioning

confidence: 87%

“…'s of higher gross income with lower cultivation costs are true. Instead of using a single method, the integration of weed management techniques has resulted in effective weed control according to (Yadav et al, 2017).…”

Section: Economicsmentioning

confidence: 99%

Effect of herbicides on weed control efficiency and Yield Response of Kharif Cowpea (Vigna unguiculata L.) in sandy loam soils of Punjab

Khose¹,

Vyvahare²,

Menon³

et al. 2023

EEC

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A field experiment using a randomized block design, eight weed management treatments, and three replications was carried out in the kharif of 2022 at the Division of Agriculture, Lovely Professional University, Phagwara, Punjab, India. To determine the economics and effectiveness of weed control measures for managing weeds in cowpea [Vigna unguiculata (L.). The weed control techniques had a big impact on the weed restrictions.With pre-emergence application (PE) of pendimethalin 0.70 kg/ha combined with hand weeding, the weed density and biomass and greater weed control efficiency were consistently inferior at different stages of crop growth. This confirmed that pre-emergence herbicide application could effectively regulate the weeds emerging early in the season, and the actual controlling of weeds by it led to higher yield and B: C ratio.

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Weed Management in Cowpea-A Review

Cited by 13 publications

References 16 publications

Effect of the use of pre- and post-emergence herbicides on nodulation and production of cowpea (Vigna unguiculata L.) in the Amazonian savannah

Effect of the use of pre- and post-emergence herbicides on nodulation and production of cowpea (Vigna unguiculata L.) in the Amazonian savannah

Economics of Weed Management Methods as Influenced by Row-Spacing in Cowpea

Effect of herbicides on weed control efficiency and Yield Response of Kharif Cowpea (Vigna unguiculata L.) in sandy loam soils of Punjab

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