Conservation farming
Wijewardena, Ray
Conservation farming systems techniques & tools for small farmers in the humid tropics [Text] - Colombo Marga Institute 1984 - v, 38 p. ill. 29 cm. - Marga publications .
Agriculture
631.587 / WIJ
Conservation farming systems techniques & tools for small farmers in the humid tropics [Text] - Colombo Marga Institute 1984 - v, 38 p. ill. 29 cm. - Marga publications .
Agriculture
631.587 / WIJ