01 جنوری 2020 The purpose of this book is to assist the reader in choosing the best method for providing clean water in a developing country. Various approaches are clearly described, and case studies provided, to illustrate the importance of matching need and method when resources are limited. John Dracup in...
Access Agricuture Training Video As collective irrigation canals deteriorate over time, farmers waste resources and efforts in simple daily tasks. With increasing scarcity and degradation of water quality, farmers must pay attention to improve water use. Available Language: Arabic,English,French...
01 جنوری 1988 Looking at inexpensive methods for water supply schemes in rural areas of developing countries, this book examines the suitable conditions and economic factors for different types of groundwater dam, and describes planning and investigation methods. 69 pages, illustrated, tables
01 جنوری 1968 Water is a complex material. After centuries of use, we still do not understand its internal structure. In spite of this ignorance, we can control it for the wise use of man, beast and plant. This booklet helps to clarify our problems, solutions and methods of testing. 46 pages, illustrated,...