Early sowing of rice by 20 June produced significantly the highest grain yield followed by normal (5 July) and late sowings (20 July) and the yield of its stubble crop also followed the similar trend. The combined grain yields of early sown rice-ratoon and the rice equivalent yield (REY) of early sown green gram was significantly higher by and than normal and late sowings, respectively in rice-ratoon-green gram system. The combined REY in modified system of rice intensification (MSRI)-ratoon-green gram system was and higher than system of rice intensification (SRI)-ratoongreen gram and best management practice (BMP)-ratoon-green gram system, respectively. | Comparative economics of rice-ratoon-green gram production system in east and south east coastal plain zone of Odisha India