Effect of organic nitrogen management on yield and quality of produce in rice-vegetable based cropping system

A field experiment was conducted during 2003-04 and 2004-05 at Research Farm, BHU, Varanasi, U.P. to study the effect of various sources (farm yard manure, vermicompost and poultry manure) and rates of organic manures on yield, quality of produce, soil quality and economics of rice-table-pea-onion cropping sequence.