Dissanayake, D.K.R.P.L.; Dharmakeerthi, R.S.; Rathnayake, U.K.; Kulasinghe, H.P.G.T.N.
(Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2021-05-07)
Fertilizer use efficiency (FUE) of urea in rice cultivation is often less than 30% in Sri Lanka.
Losses of urea-N through volatilization, leaching, de-nitrification and runoff cause low profits
and multitude of environment ...