Martin, M.P.L.D.2010-07-062010-07-061982Journal of the National Science Council of Sri Lanka , 10(1):p.73-80https://dl.nsf.gov.lk/handle/1/6339Seed yieldNodulationLeaf area indexGrowth atributeIntercroppingAgricultureThe effects of nitrogen and spacing on the growth and yield of soyabean (Glycine max. (L) Merr.) under coconutArticle