Maraikar, S.Amarasiri, S.L.2020-09-022020-09-021989Tropical Agriculturist, 145:p.51-59https://dl-doa.nsf.gov.lk/handle/1/2685CATTLE DUNGAvailabke PCattle dungExchangeable KPoultry dungEffect of cattle and poultry dung addition on available P and exchangeable K of a red-yellow podzolic soilArticle