Submitted by Darlington Kahilu on Saturday, 19th February, 2011 — Audio Resource
Lister Nyemba, assistant production manager at York Farm near Lusaka, describes how the farm has built extremely healthy and fertile soil through incorporation of crop residues after harvest. This organic matter becomes food for soil microbes which help to clean the soil of harmful bacteria. Earthworms also play an important role, aerating the soil and bringing up nutrients from deeper soil layers. http://www.agfax.net/radio/detail.php?i=398
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