1. 01/01/1991 Soil fertility is the overriding constraint to food production in the tropics, and yet in many developing countries fertilizers are unavailable or beyond the reach of subsistence farmers. The biological fixation of atmospheric nitrogen is the only way that plants can manufacture their own...
  2. The research reported in this working paper is part of a larger project that aims to assess the scope for and enhance the possibilities of the sustainable intensification of potato production in cereal-based cropping systems in the subtropical lowlands of Asia. Working paper, no. 1999-1
  3. 01/06/1987 This publication includes technical studies and photos of the workshop and field work that were done. 48 pages, illustrated, photos
  4. 01/01/2000 Kabale District in the highlands of southwest Uganda provides an opportunity to examine the dynamic roles of potato and sweetpotato in an area of intensifying agricultural production in response to increasing population pressure and market demand. Based on field research conducted in three sites...
  5. 01/01/1995 This book brings under one cover an in-depth analysis of all aspects of the production cycle. The overall objective is to develop a technological framework for sustained and improved productivity. To improve productivity, hower, significant improvements must come from improved soil, water, and...
  6. Covers aspects of farm managementand water conservation, animal husbandry, planting tree crops, and soil fertility management.
  7. The purpose of this symposium was to bring to the attention of the world's soil scientists the impact slash-and-burn agriculture has on the global environment and rural inhabitants and to determine, through the analysis of available information presented by the authors, the contribution soil...
  8. 01/01/1983 Proceedings of a symposium sponsored by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. 378 pages, illustrated
  9. 01/02/2004 This bulletin will provide you with a jumping-off point to diversify your farm, from choosing the right new crops to managing them successfully. Sustainable Agriculture Network 20 pages, illustrated, photos
  10. 01/01/1977 32 pages. Presentation on field food crops in Africa and Near East.