乌干达东部地区的土地非常贫瘠，使得农业生产得不到发展，为此当地农民和科学家一起施行土地增肥计划
Sorghum farmers in eastern Uganda, working with scientists, have tested some lower-cost ways to improve their soil. Little rain and poor soil fertility are problems in that area, as in other parts of southern Africa. Experts from the Kawanda Research Institute in Uganda an…