Premasiri, D.S.Bandara, K.A.N.P.2019-10-172019-10-172017Annals of the Sri Lanka Department of Agriculture, 19(2):p.341https://dl-doa.nsf.gov.lk/handle/1/1578MachineryPestsCrop yieldFoliar insecticidesImproved hollow cone nozzleAdoptability of the improved hollow cone nozzle on beans and tomato under farmer field conditionsArticle