Salgado, M.L.M.2014-06-032014-06-031972Ceylon Coconut Planters' Review, 6(4):p.160-174https://dl-cri.nsf.gov.lk//handle/1/2994WeedsBiological controlTephrosia purpurreaEupatoriumGreen manureTephrosia Purpurrea (Pila) for the control of Eupatorium and as a green manure on coconut estate