Bandara, K.M.C.Sangakkara, U.R.2014-11-122014-11-121993Tropical Agricultural Research, 5:p.307-317https://dl.nsf.gov.lk/handle/1/11708AgricultureMahaweli ProjectInflunce of in situ and ex situ green manures on the productivity of rice and onions in the Mahaweli system C of Sri LankaA