Martin, M.P.L.D.2014-07-012014-07-011982J. Nat. Sci. Coun. Sri Lanka, v10(1) p:73-80https://dl-cri.nsf.gov.lk//handle/1/4107enFarming SystemsSoybeanNutritional studiesNitrogenSpacingThe effects of nitrogen and spacing on the growth and yield of soyabean under coconutArticle