M. Kalyan, P. Maheswarareddy, G. Chalapathi Rao3, C. Nagamani, Ch. Bhargavaramireddy and V. Chandrika
Abstract
Weed infestation is a major problem in the cultivation of groundnuts (Arachis hypogaea L.), which leads to severe output losses. Conventional weed control techniques require a lot of work and are frequently ineffective. In order to solve these issues, the purpose of this study was to assess the effectiveness of several weed management strategies in groundnut farming. A field experiment was carried out at the Acharya N.G. Ranga Agricultural University Tirupati campus during rabi 2022â2023 to investigate the impact of pre-mix post-emergence herbicides on groundnut yield, weed growth, and economics. The wide-spectrum of weed control with higher yield and economic returns were recorded with imazethapyr + imazamox 70 g ha-1, propaquizafop + imazethapyr 125 g ha-1, and quizalofop-p-ethyl + imazethapyr 98.43 g ha-1 among the pre-mix post-emergence herbicides studied. The next best option could be hand weeding twice at 20 and 40 DAS, followed by pre-emergence (PE) application of pendimethalin 1.0 kg ha-1 fb hand weeding at 30 DAS with respect to economics, and the remaining wide spectrum of weed control, yield, and attributes are statistically at par with the above-mentioned pre-mix post-emergence herbicides.