Diversification of existing rice–based cropping system for sustainable productivity under assured irrigation condition for Chhattisgarh plains
A field experiment was conducted at research and instructional farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during kharif, rabi, and summer season of 2006-07 under AICRP- cropping system research project. The treatments were consisted of seven cropping sequences viz. rice-wheat-fallow, rice-mustard-green manure, rice-coriander (green leaf)-mung, rice-pea (table)-maize (F), rice-brinjal- green manure, rice-onion- green manure & rice-potato-cowpea. Among different cropping sequences evaluated rice-potato-cowpea system was identified to be most productive with rice-equivalent yield of (270.39 q ha-1 year-1), production efficiency (83.97kg ha-1 day-1), profitability (Rs. 320.36 ha-1 day-1), relative economic efficiency (199.29 per cent) and net return of higher Rs. 116929 ha-1 year-1. Vegetable based cropping sequences also showed more production efficiency, grass and net returns than a traditional sequence.