Vol. 20 No. 1
Weed management in soybean using early post emergence herbicide in lateritic soil and residual effects of herbicide in succeeding crops
Author(s): S. N. AKTAR, R. K. GUPTA, S. MONDAL AND K. PRAMANIK
Abstract: A study was conducted to establish an appropriate weed management strategy through ready-mix early post-emergence herbicides for soybean production in lateritic belt of West Bengal (India). The experiment was conducted for two consecutive years i.e., 2017-18 and 2018-19 in a field located at Agricultural Farm of Palli Siksha Bhavana (Institute of Agriculture), Sriniketan, Birbhum, West Bengal (N 23039.823′, E 87037.972′). The early post-emergence application of fomesafen 12.5% + fenoxaprop 10% + chlorimuron ethyl 0.9% ME at 10 days after soybean sowing recorded minimum weed population and dry weight as well as showed good weed control efficacy, higher yield with good soybean safety. However, weed-free treatment produced tallest plant, greater yield attributing characters, and yield that was comparable to fomesafen 12.5% + fenoxaprop 10% + Chlorimuron ethyl 0.9% ME at 280 g ha-1 which was again at par with fomesafen 12.5% + fenoxaprop 10% + chlorimuron ethyl 0.9% ME at 234 g ha-1 The application of ready-mix formulation of early post emergence herbicide may be incorporated into the weed management programme for sustainable soybean production, and there wouldn’t be any residual effects on succeeding crops.
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