De Silva, N.T.M.H.Tisdell, C.A.2014-06-032014-06-031981Ceylon Coconut Quarterly, 32(3-4):p.72-79https://dl-cri.nsf.gov.lk//handle/1/3291FertilizersFertilizer recommendationsResponse of coconuts to fertilizer and advice to Sri Lankan growers:an aggregative