Pethiyagoda, U.Krishnapillai, S.2014-11-182014-11-181971Tea Quarterly42(3)pp.109-117https://dl.nsf.gov.lk/handle/1/12958AgricultureCamellia sinensisPlant nutritionNitrogen fertilizersPlant growthFoliar analysisSand cultureStudies on the mineral nutrition of tea 4 - ammonium and nitrate as forms of nitrogen for tea plants in sand cultureA