Studies on the effect of Azolla and Blue green Algae with and without urea on the yield and quality of rice var. IR 20
SUBRAMANIAN (V)
Studies on the effect of Azolla and Blue green Algae with and without urea on the yield and quality of rice var. IR 20 - 1981
Studies on the effect of Azolla and Blue green Algae with and without urea on the yield and quality of rice var. IR 20 - 1981