Regional action learning programme on the development of conservation farming systems : report of the training course, Agoo, La Union Province, Northern Luzon, The Philippines, 25 June - 20 July 1990.
Regional action learning programme on the development of conservation farming systems : report of the training course, Agoo, La Union Province, Northern Luzon, The Philippines, 25 June - 20 July 1990.
- Jakarta, Indonesia : Asia Soil Conservation Network, 1990.
- 79 p. : ill.
- ASOCON report ; no. 4 .
Agricultural systems.
Agricultural systems.