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85 items found (Showing 1 - 10)
  1. 1965-03-01 Circular no. 905 55 pages, illustrated, photos  
  2. The solar greenhouse is an appropriate technology tool which can be geared to the needs of people in rural, urban, and suburban areas.  
  3. 1980-01-01 Two colled greenhouses were purchased and installed at Rodiat El-Faras, for experimental purpose to raise vegetable crops in the off-season period, May through October. The adverse environmental conditions inside the greenhouses, although extended the availability season of tomatoes, resulted in...  
  4. 37 pages, illustrated, photos  
  5. 187 pages In English, Ukrainian,and Russian  
  6. Large & small, packaged and custom-built with special sections on solar heating, hydroponics, coldframes, window greenhouses and terrariums.  
  7. Peter Clegg, a solar architect, and Derry Watkins, his gardening wife, take the two key elements of this picture, the warm protected environment and the lush vegetation--and weave them into the major components of this unusal book. Besides covering all aspects of growing plants indoors, the...  
  8. 2013-01-20 Principles for Mediterranean climate areas A very significant event in the world history of Agriculture is the domestication of plants by mankind. Instead of depending on wild growth, it was realized that the planting of seeds or cuttings allowed the propagation of the type of plants desired....  
  9. The results, as in previous years, revealed that summer planting of the greenhouses required a high input and resulted in a low out production. Considerable effort, time and investment must be spent towards research to increase the greenhouse cooling efficiency and plant productivity and in...  
  10. 1984-01-01 Solar greenhouses and sunspaces are popular. One measure of that popularity is the number of people who received grants from the U.S. Department of Energy's Appropriate Technology Small Grants Program. Nearly 200 of the 2,200 total grantees studied, built, managed and improved greenhouses or...