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Supertopics:
Crop Nutrient Minerals
Phosphorus
Phosphorus as Crop Nutrient
Subtopics and Documents:
Phosphate Mining
intensifying drought is blowing more dust in the wind
web
Jim Robbins
Yale Environment 360
2017-11-30
mass-produced meat turning phosphorus into pollution
web
Dan Charles
NPR
2014-01-02
agriculture in a post-oil economy
web
Peter Goodchild
CounterCurrents
2007-09-22