Tobacco - or "green gold"- is Malawi's most important export product. But monocultures are harming soil fertility. Switching to other crops, such as sunflowers, could help.
For more go to: http://www.dw.com/en/top-stories/ecoafrica/s-32676
For more go to: http://www.dw.com/en/top-stories/ecoafrica/s-32676
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