Economics of groundnut production as influenced by different weed management practices

Abstract

The field experiment was conducted at the Main Agricultural Research Station (MARS) (15 29 45 N 74 59 19 E 700 m MSL), University of Agricultural Sciences, Dharwad (Karnataka) on medium black clay during two consecutive years (2015-16 and 2016-17) in kharif-rabi. To study the economics of groundnut production as influenced by different weed management practices. The treatments comprised of five different pre-emergence herbicides (Alachlor 50 % EC @ 3.00 l ai/ha, Pendimethalin 30 % EC @ 1.00 kg ai/ha, Butachlor 50 % EC @ 1.00 kg ai kg/ha, Pendimethalin 38.7 CS @ 750 g ai/ha and Oxyfluorfen 23.5 % EC @ 100 g ai/ha) and four post-emergence herbicides (Propaquizafop 10 % EC @ 100 g ai/ha, Quizalofop ethyl 5 % EC @ 50 g ai/ha, Fenoxaprop-p-ethyl 9.3 % EC @ 100 g ai/ha and Imazethapyr 10 % SL @ 100 g ai/ha) weed free and weedy check. In the present investigation, it was observed that, pre-emergence application of herbicides and weed free control treatments produced higher net monetary returns and higher B:C ratio over post-emergence application of herbicides and weedy check treatment. Among the different post-emergence herbicides, post-emergence application of Imazethapyr 10 % SL @ 100 ai/ha recorded lower net monetary returns and lower B:C ratio.