Studies on the the effect of green manuring with Dhaincha (Sesbania aculeata) and Sunnhemp (Crotalaria juncea) on physico-chemical properties of soil, nitrogen uptake and productivity of rice indicated that soil pH, organic carbon, available N, available P2O5, available K2O and nitrogen uptake recorded before transplanting, at 20 transplanting and after harvest of rice were affected significantly due to methods of green manuring and nitrogen levels. Soil pH was significantly higher in summer fallow as compared to rest of the methods of green manuring. Organic carbon, available N, P₂O₅, K₂O and nitrogen uptake were higher in Sesbania green manuring at 60 days after sowing. which was at par with Crotalaria green manuring at 60 days after sowing. Summer fallow recorded significantly lowest indices of these physico-chemical properties of soil. Application of N beyond 75 kg ha^-1 did not produce significant differences. Nitrogen uptake increased significantly with increase in nitrogen level from 0 to 150 kg ha^-1. The number of panicle m^-2, grains panicle^-1, 1000 grain weight, grain and straw yield of rice were significantly significantly higher under green manuring of Sesbania at 60 days after sowing followed by Crotalaria green manuring at 60 days after sowing.