Sirisena, D.N.Dissanayake, D.M.N.2012-09-252012-09-252012-09-25https://dl.nsf.gov.lk/handle/1/9352enNano-k fertilizerRice cultivationPotassium fertilizerSri LankaUse of nano-k fertilizer as a source of potassium in rice cultivationPresentation