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38 items found (Showing 1 - 10)
  1. Key Resource Despite the incredible diversity of useful plants that exist, a small handful of crops feed the majority of the world and millions of people still suffer from malnutrition and poverty. This talk will discuss some often overlooked crops that have the potential to alleviate suffering through...  
  2. 1997-11-19 Discussion of possible disease organisms in manure. Many of us probably assume health problems originate when food is washed with contaminated water or because of poor human hygiene. However, it could also come from the use of manure as a fertilizer in the field.  
  3. 2004-04-20 Terra preta is very productive soil with long-lasting fertility—unusual in the tropics, where most soils are very weathered, highly acidic, and low in organic matter and essential nutrients. The key to terra preta soils long-term fertility seems to be charcoal; terra preta contains up to 70 times...  
  4. 2003-07-20 The Strawberry Tree (Muntingia calabura), also known as Jamaica Cherry, is a multipurpose tree that quickly grows to 8 to 13 meters in height. The tree produces a small red fruit, but is largely valued for its wood. It is remarkably fast-growing for a tree having such hard wood.  
  5. 2021-03-01 Several species of edible ferns exist around the world, ranging from the tropics to more temperate regions, and most commonly include the bracken ferns (Pteridium spp.), ostrich fern (Matteuccia struthiopteris), and the Stenochlaena spp. ferns. However, the focus of this study is on the vegetable...  
  6. 1994-07-19 Nitrogen fertilizer should not be applied to trees and shrubs directly after transplanting.  
  7. 2005-01-20 Maradi Integrated Development Project has forced me to question the wisdom of assuming that increases of organic content and fertility are always best.  
  8. 2008-07-20 Our goal from the start has been to enable members of our network to not only read about promising plants that have not been grown in the countries where they work, but to also get free trial packets of seed so they can evaluate the plants’ potentials themselves. If farmers are interested, they...  
  9. 1982-05-19 Dr. Frank is known to many of you as author of several books and articles on tropical subsistence farming. He works at the Mayaguez Institute of Tropical Agriculture (USDA) in Puerto Rico. Currently his research centers around sweet potato improvement for the tropics. We recently received from...  
  10. 2014-04-20 Comfrey is a unique perennial plant that requires minimal maintenance after planting and that can give high, sustained yields of nutrient-rich leaves for use as fertilizer, animal feed and more. It is high in potassium (K) and other micronutrients, and seems to improve fruiting and disease...