Vol. 10, Special Issue 8 (2021)

Author(s):
Dhaigude GS, Dhonde MB and Andhale RP

Abstract:
A field experiment was conducted at All India Coordinated Research Project on Integrated Farming System, MPKV, Rahuri (MS) to study the effect of weed management practices under organic production system of soybean - wheat cropping sequence during the year 2017-18 and 2018-19. Experiment comprising T₁-weed free, T₂ - one hand hoeing at 15 DAS + one hand weeding at 35 DAS, T₃- intercropping with green manure (sunnhemp) with 1:1 row proportion, T₄ - stale seedbed + reduced row spacing (33 %) + previous crop mulch @ 2 t ha^-1 + one hand weeding at 20 DAS, T₅ - locally available weed mulch (mixed weed residue) @ 2 t ha^-1 + one hand pulling at 20 DAS, T₆ - incorporation of neem seed cake 15 days before sowing @ 0.5 t ha^-1 + one hand weeding at 20 DAS, T₇ - summer soil solarization with 25 microns transparent polyethylene mulch + one hand weeding at 20 DAS and T₈ - weedy check. Weed free was gives maximum gross monetary (Rs. 222613 and 258563 ha^-1), net monetary returns (Rs. 94422 and 124808 ha^-1), benefit cost ratio (1.74 and 1.93), system productivity (Rs.5779 and 6088 kg ha^-1), production efficiency (11.65 and 12.14 kg day^-1 ha^-1) and economic efficiency (363 and 480.ha^-1 day^-1) followed by stale seedbed + reduced row spacing (33 %) + previous crop mulch @ 2 t ha^-1 + one hand weeding at 20 days after sowing during both the years of investigation, respectively.