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

Abstract

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.