Sivanesarajah, K.Sangakkara, U.R.Sandanam, S.2014-11-122014-11-121995Tropical Agricultural Research, 07:p.112-123https://dl.nsf.gov.lk/handle/1/11987AgricultureAgronomyEffects of plant density, nitrogen and gypsum on yield parameters of groundnut (Arachis hypogea L.) in regosols of Batticaloa districtA