Role of green manure (Sesbania rostrata) and nitrogen fertilizer on grain yield, nitrogen content and nitrate reductase activity of two rice varieties govind and saket-4

摘要

A field experiment was carried out during the rainy season (July - October) of 2002 at agriculture research station of Nawabganj, Bareilly to study the combined effect of different levels of green manure (Sesbania mstrato) along with nitrogen fertilizer on grain yield, nitrogen content and nitrate reductase activity in two varieties of rice (Govind and Saket-4). Different doses of green manure along with nitrogen fertilizer gave significantly higher values of grain yield, nitrogen content and nitratereductase activity in both varieties of rice upto a level of 90 kg N/ha + 75 kg seeds of Sesbania rostrata.