Organic vs conventional farming.
Benbrook
Charles
C
McCullum-Gómez
Christine
C
D000383:Agriculture / Q000379:methods*; D018556:Crops, Agricultural / Q000592:standards*; D006801:Humans; D008372:Manure / Q000032:analysis; D009584:Nitrogen / Q000032:analysis; D009753:Nutritive Value
D008372:Manure; D009584:Nitrogen