The Glory of the Garden

The key to tackling hunger in Africa is enriching its soil. The big debate is about how to do it. ... African governments, international donors and scientists all agree that farmers must revitalize their soils. But there is passionate debate about how to do it. Many African governments and agricultural scientists argue that large doses of inorganic fertilizers are the most practical solution. But others, such the Food and Agriculture Organization of the United Nations (FAO) in Rome, are pushing for greener, cheaper solutions, such as no-till farming that conserves soil and 'fertilizer plants' that boost the soil's nitrogen content organically. Researchers report that these latter techniques are beginning to raise yields and improve soil fertility. But farmers are slow to adopt such practices, which require significantly more labour.

Via International Maize and Wheat Improvement Center