USA Today: Could trees to be the answer to Africa's worn-out soils? Agroforestry experts presenting at a conference in The Hague say yes.
Growing crops under a canopy of "fertilizer trees" can increase grain production by two or three times in nutrient deficient ground. The trees, a unique type of acacia, fix nitrogen in the soil through their roots and go dormant during the corn, sorghum and millet-growing season, so they don't compete with farmers' crops, researchers from Nairobi said.
The technique......
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Agroforestry could hold key to African agriculture
Posted by Washington Post: Juliet Eilperin on November 3rd, 2010
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