1. 31 pages, tables
  2. 1979-01-01 188 pages, tables FAO Soils Bulletin 42
  3. As a general conclusion of this study, both chemical and physical limitations are affecting crop yields and tree production. Special attention needs to be given to the introduction of crop or tree species that are tolerant of high pH. Crop production should be focused on the better land that has...
  4. This Framework is written mainly for those actively involved in rural land evaluation. Since most land suitability evaluations are at present carried out for purposed of planning by national and local governments, this is the situtaion assumed in references to decision-making, but the evaluation...