Influence of fertilizer reduction on effluent loads from Paddy fields using a side fertilizer rice transplanter and a single application of fertilizer to a nursery box
Kaneki, R.; Nakagawa, S.; Yasui, A.; Nishioka, H.
Transactions of the Japanese Society of Irrigation Drainage and Reclamation Engineering 73(6): 567-573
In the irrigation period from 1999 to 2001, the influence of fertilizer reduction on outflow loads has been examined. Phosphorus fertilizer is applied using a side fertilizer rice transplanter and coated nitrogen fertilizer is treated in a nursery box just one time to reduce the mass of fertilizer.Phosphorus and Nitrogen concentration in standing water and percolated water of the reduced fertilizer division is less than that of the conventional division.