The establishment of soil management experiments on sloping lands: papers and reports of a training workshop held at Chiang Mai, Thailands, 7

The establishment of soil management experiments on sloping lands: papers and reports of a training workshop held at Chiang Mai, Thailands, 7 - 18 November 1988 / ASIALAND WORKSHOP ON THE ESTABLISHMENT OF SOIL MANAGEMENT (1988: Chiang Mai) text Chiang Mai : Center for International Forestry Research, 1988 ind SOIL MANAGEMENT SLOPING LANDS FARMING SYSTEMS ASIA