Why researchers are mapping the world's manure
Farmers rely on phosphorus fertilizers to enrich the soil and ensure bountiful harvests, but the world's recoverable reserves of phosphate rocks, from which such fertilizers are produced, are finite and unevenly distributed.
from Latest Science News -- ScienceDaily http://bit.ly/2v6ZyWP
from Latest Science News -- ScienceDaily http://bit.ly/2v6ZyWP
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