Effect of sesbania rostrata as relay intercrop on aus rice and as green manure on t. aman rice

Abstract

Abstract : A study was conducted to see the effect of Sesbania rostrata relay intercropping on transplant aus rice and subsequent effect as green manure on the performance of transplant aman rice. Relay intercropping of S. rostrata did not exert any significant adverse effect on the growth and yield of aus rice. Green manuring with fresh biomass of S. rostrata @ 17.5t ha-' along with 50% of recommended Urea-N in transplant aman rice produced the highest grain yield. However, green manure alone appeared to be sufficient to maintain rice grain yield as with standard dose of Urea-N. The study also revealed that green manuring along with Urea-N maintained soil fertility level better than the standard dose of Urea-N.