Dissanayake, N.Wickramasinghe, W.M.A.D.B.2020-04-072020-04-071999Annals of the Sri Lanka Department of Agriculture, 1:p.267-273https://dl-doa.nsf.gov.lk/handle/1/1925PLANT PROTECTIONDisease severityNarrow brown leaf spotRiceEffect of N, P, and K application on the occurrence and severity of narrow brown leaf spot in different rice varietiesArticle