Table 4: Economics of rice-wheat system under different agronomic management practices (pooled data of four years).

Agronomic management practices Rice equivalent yield of the system (kg/ha)System productivity (kg/ha/day)Cost of cultivation ($/ha)Net returns ($/ha)Gross returns ($/ha)Incremental net returns ($/ha) B : C ratioSustainability index

T1731120.067097616751.390.82
T2784121.5722107617981011.490.86
T3853523.4752122219742461.620.88
T4958326.3790140221924261.770.81
SEm32224
cd at 5% 106269