GFM Network News


Maybe its time for a new farmer-run fertilizer co-op

1960 1986 Year Nitrogen 2006 16 80 101 Phosphorus (P2O5) 15 39 40 Potassium (K2O) 13 25 30 Data is from Figure 1 in Terry Robert’s paper “The Role of Fertilizer in Growing the World’s Food” on pages 12-15, Better Crops with Plant Food, 2009 No. 2. Go to www.ipni.netto access this good little magazine. […] Read more