"Fertilizer Tree" May Revive African Farmlands
Thursday, September 3, 2009 - 15:14
in Earth & Climate
A type of acacia tree could serve as a free—and less polluting—source of long-lasting and crop-boosting nitrogen, experts say.
A type of acacia tree could serve as a free—and less polluting—source of long-lasting and crop-boosting nitrogen, experts say.