UN reports shows that Namibia and Tanzania's ecological farming increase yield

In Namibia and Tanzania, ecological approaches without chemicals have generated yield increases of five and six fold, respectively, reports the UN’s Food and Agriculture Organization (CIS 4)."Farming Systems that Save and Grow," Factsheet 11, Sustainable Crop Production Intensification, Food and Agriculture Organization, Rome, Italy. http://www.fao.org/ag/save-and-grow/

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