Thakur, Amrita; Banerjee, Abira; Chattopadhyay, G.N.
(Israeli Journal of Aquaculture - BAMIGDEH, 2004)
High doses of nitrogenous fertilizers are often applied in fishponds but only a small part of the added nitrogen is utilized for improving primary productivity and, thereby, fish yields. A large por- tion of the nitrogen ...