Effect of Diversification on System Productivity and Profitability under North Bihar Condition

A field experiment was conducted during three seasons of 2019-20 at RPCAU, Pusa to evaluate the Effect of Diversification on System Productivity and Profitability under North Bihar Condition. Treatment comprised cropping systems in main plots: C1 - Rice - Wheat - Fallow, C2 - Rice - Wheat - Green Gram, C3 - Rice - Maize - Dhaincha, C4 - Rice - Maize + Potato - Dhaincha, C5 - Rice - Maize + Green Pea - Dhaincha and moisture regimes in sub plots with 3 days disappearance of ponded water in kharif season, three levels of IW/CPE ratio in rabi season I1: IW/CPE = 0.6, I2: IW/CPE = 0.8, I3: IW/CPE = 1.0 and one or two irrigation in zaid season if required. Maximum rice grain yield (5.36 t/ha) was observed at C5 cropping system which was significantly superior to C1 and at par with C2, C3 and C4 cropping system. Maximum Production Efficiency (92.13 kg/ha/day) and Profitability (1156.49 ?/ha/day) was found at C4 cropping system which was significantly superior to C1, C2, C3 and C5 Cropping system. In sub plots maximum Production Efficiency (56.72 kg/ha/day), and Profitability (685.88 ?/ha/day) was found at I3 which was significantly superior to I2 and I1. Relative Production efficiency was found to be maximum in C4 (204.36 %) and I3 (13.58 %) cropping system.