Growth of roots and yield as influenced by green manuring in rice-wheat cropping system

An investigation on the effect of green manuring in rice-wheat cropping system was undertaken during May, 2001 to March 2002. Green manuring increased root length, root volume, root dry weight (i.e. root characters) of rice compared with control. Residual effect of green manuring along with added nitrogen also significantly influenced all the root characters of wheat compared with control. Green manuring and its residual effect increased most of the yield components except test weight, grain yield and straw yield of rice and wheat compared with control. However, among the different green manuring crops, Sesbania rostrata was, by far, the best one.