Integrated nitrogen management through natural green manuring under wheat-mungbean cropping sequence

Field experiments were conducted in microplots to evaluate the performance of leguminous and non-leguminous natural green biomasses (Cassia tora, Cassia occidentales & Lentana) as incorporant in association with varying levels of N under wheat-mungbean cropping system during 1990–91 and 1991–92. Incorporation of green biomass when applied @ 5.0 and 7.5 t ha−1 in conjunction with 50 or 100 kg N ha−1 as fertilizer significantly increased the grain yield. Natural green biomass brought improvement in biological properties of the soil. Residual fertility of the soil in respect of available N also increased due to green manure treatment in wheat resulting in higher yield of succeeding mungbean crop.