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  1. 关键资源 1992-07-24 Part of a series, this book is written principally for extension staff and other agricultural development officers, teachers and trainers who act in a similar capacity. Each book provides the background, information and knowledge necessary for a basic understanding of an aspect of agriculture,...
  2. 关键资源 1991-07-01 Integrated Pest Management is an approach which combines different pest control techniques and integrates them into the overall farming system. This study shows the relevance of the IPM approach for African agriculture by giving an account of the rationale and historical development of IPM as...
  3. 关键资源 1992-01-01 Includes chapters on: Principles of Preventive Crop Protection; Pests in Field and Store; Methods of Crop and Storage Protection; references; index. 2 editions
  4. 关键资源 1995-01-01 This book is a must reading for all farmers and gardeners in southern Africa region- small scale, large-scale, commercial and subsistance farmers alike. This book aims to return us to a new co-operation with nature by offering a number of tried and tested methods to establish a long-term healthy...
  5. 关键资源 1984-05-01 Suggests techniques for preventing diseases and pest damage, describes the problems that can develop with each kind of fruit and vegetable, and describes specific remedies. (2 Copies)