Nagarajah, S.Nizar, B.M.2021-03-312021-03-311982Tropical Agriculturist, 138:p.69-80https://dl-doa.nsf.gov.lk/handle/1/3031RICESunflowerGreen manureMid countryWet zoneWild sunflower as a green manure for rice in the mid country wet zoneArticle