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  1. 2017-04-12 Joel Matthews, professor of Engineering Technology at Diablo Valley College, shared some comments after reading EDN 134. “Thank you for your excellent and timely article on women's agricultural participation in EDN 134. I have a few comments that I would like to share.  
  2. 2017-04-12 Perennial leafy greens, such as moringa and chaya, have been featured quite extensively in EDN. Here we focus on the bright orange-to-red fruitof a tropical vining plant called gac (Momordica cochinchinensis). Belonging to the Cucurbitaceae family, other names for gac are cochin gourd, spiny...  
  3. 2017-04-12 Dr. Brian Hilton researched and promoted biofortified crops for over 20 years. Brian worked as part of a team testing the first orange sweet potato varieties in Mozambique in 2002. He has 25 years of experience working with farmers in Indonesia, Chad and Mozambique. Brian now works with World...  
  4. Key Resource 2015-07-23 Climate change will have a huge impact on the world’s poorest people. Crop yields have already gone down in the tropics and are projected to drop by 15-30% by 2080 in Africa, South Asia, and Central America (Hoffman 2013). Some countries could reach a 50% loss of agricultural productivity; in...  
  5. 2015-07-23 In EDN 127, Dick Tinsley and David Headley appear to offer somewhat contradictory visions regarding the value of farmers’ co-operatives. When such contradictory advice appears, it often points to an area of underappreciated complexity. Thus, rather than throw our hands up in frustration, we...  
  6. 2015-07-23 Naranjilla (pronounced na-ran-hee-ya) means ‘little orange’ in Spanish, but it is not a citrus crop. It is actually a relative of tomato, eggplant and pepper, being a member of the Solanaceae (also known as ‘nightshade’) family. Grown for its yellow to orange fruits, it has been described as “the...  
  7. 2015-07-23 Good intentions and viable solutions will have little impact unless we engage with farmers in ways that are meaningful to them. Farmers put a great deal of confidence in what they learn from fellow farmers’ experiences, and they are more likely to trust what they see over what they hear....  
  8. 2015-01-20 To gain an understanding of the value of moringa prunings as a soil fertility input, we wanted to know the concentration of N, P, and K in woody versus leafy biomass of moringa trees. Plant tissue was collected at the second leaf harvest, about 2 months after the final manure application.  
  9. 2015-01-20 Sorghum is primarily self-pollinated, meaning that a sorghum plant will accept pollen from its own flowers. Sorghum can also accept pollen from other sorghum plants (cross-pollination) by means of wind or insect transfer. Cultivated sorghum is generally cross-pollinated between 2 and 10%, with...  
  10. 2015-01-20 Storing seeds in the tropics can often be difficult; with high temperatures and humid conditions, seeds lose their ability to germinate quickly. Many techniques for seed storage exist, from the high-tech standards of gene banks to simple methods used by villagers for saving their own seeds. All...