Arizona Science explores the latest scientific research and technological innovations taking place in Southern Arizona and at the University of Arizona.
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Episode 193: Going global with farming methods
A University of Arizona agriculture scientist is trying to find out why a popular way to grow crops in the United States is not as effective in a part of the world where it is needed most. Jeff Michler is studying conservation agriculture in Zimbabwe. It is a technique that calls for farmers to use mulch and other remains from a previous year's harvest to feed the soil. The method has worked in North America and Brazil for 30 years. But Michler says its ineffectiveness in some sub-Saharan nations in Africa is a mystery.