Amarasiri, S.L.Wickramasinghe, K.2021-03-312021-03-311977Tropical Agriculturist, 133(1):p.39-49https://dl-doa.nsf.gov.lk/handle/1/3106FERTILIZERSoil fertilityRiceFertilizer materialUse of rice straw as a fertilizer materialArticle