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6 items found (Showing 1 - 6)
  1. Key Resource 2016-09-28 Farmers in many parts of the world, because of human population growth, have little choice but to crop their land continuously, with scarce resources to replace nutrients withdrawn by each successive crop. Crop residues are often lost as a source of organic matter and mulch, usually through...  
  2. 2015-11-18 Vegetable growing can provide nutrition and livelihood for those isolated by poverty, recovering from crisis, and/or diversifying their food and income options -- but gains are not automatic. What should be considered in designing and deploying vegetable gardening programs? What seed...  
  3. 2016-10-18 Cory Thede, working on the north coast of Haiti, sent a note about a local chaya plant with a lower branch that mutated to a wild stinging type. He commented, “After I backed up against it, it gave me an itchy rash on my arm for about a week. The upper branch is regular and almost spineless.” He...  
  4. 2016-07-11 Dr. Dowell is a Research Agricultural Engineer with the USDA ARS. He has about 30 years of experience developing technology to measure grain quality and improving food security in developing countries. He has over 20 years of experience in international agriculture, and is President of Planting...  
  5. 2016-01-25 Some tropical crops contain cyanogenic glycosides, toxic substances that release hydrocyanic acid (HCN; also referred to as cyanide or prussic acid) when cells are crushed. Consuming these plants without cooking them can cause cyanide poisoning, with varying effects depending on cyanide levels...  
  6. 2015-01-20 Selenium (Se), along with iron, zinc, and iodine, is one of a number of essential micronutrients that must be consumed in sufficient amounts in order to maintain human health. Selenium is part of a number of proteins within the human body that play an important role in protecting our bodies from...  

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