Gnanavelrajah, N.Kumaragamage, D.2014-11-122014-11-121999Tropical Agricultural Research, 11:p.29-41https://dl.nsf.gov.lk/handle/1/12231AgricultureNitrification inhibitorsUreaAmmonium sulphateReddish brown latosolic soilsNitrogen leaching losses and plant response to nitrogen fertilizers as influenced by application of neem (Azadirachta indica A. juss) materialsA