Ekanayake, R.T.Malaviarachchi, M.A.P.W.K.Upashantha, P.S.G.Fonseka, R.M.Ranaweera Banda, R.M.2014-11-122014-11-122011Tropical Agricultural Research, 22(2):p.165-171https://dl.nsf.gov.lk/handle/1/12417AgricultureBlackgramVigna mungo L.Fertilizer applicationNitrogenRain-fed farming systemPlant growthPlant heightLeaf areaSeed rateCrop improvementPlant nutrientsOptimum seed rate and Nitrogen requirement for broadcast blackgram(Vigna mungo L.)grown on rain-fed uplandsA