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6 items found (Showing 1 - 6)
  1. This study investigated the main factors influencing digester temperature and methods to reduce heat losses during the cold season in the subtropics. Four composite digesters (two insulated and two uninsulated) were buried underground to measure their internal temperature (C) at a depth of 140 cm...  
  2. The BGET provides hands-on appropriate technology training and financial support to village innovators in ethnic minority areas on both sides of the Thai/Burma border. BGET’s Knowledge Base offers a wealth of technical downloads in English and Thai related to renewable energy technologies for...  
  3. Key Resource 1996-01-01 This is a book of practical ideas. It is written for people who help those who live and make their living under difficult conditions in the tropics and subtropics. What should a development worker do to assist a community? There are no simple answers, but there are many possibilities—plants,...  
  4. 2001-01-01 This book is composed of seventeen chapters, featuring unique extension systems and approaches. Although not every type of system can be included, these case studies provide a cross-section of extension approaches found internationally. Students of extension education realize that some extension...  
  5. 2001-01-10 This book shows biogas users on how to operate and maintain their biogas plant. The things to do are illustrated with many simple drawings. 34 pages, illustrated  
  6. Key Resource 2019-05-21 Now available through Amazon as well as the ECHO Bookstore Smallholder farmers around the world face some of the harshest growing conditions globally, yet they produce the majority of the world’s food. Soils in these areas often lack nutrient and water holding capacities, due to erosion or poor...  

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