Is corn a fertilizer hog? Times are changing, says RFA

August 19, 2011 |

In Washington, RFA Vice President Geoff Cooper took issue with the contention that US corn yields are rising because of, simply, increased fertilizer use. “Data from USDA show that 2010 application rates of the three common macronutrient fertilizers (nitrogen, potassium, and phosphate) were the same–or below—the application rates seen in the early 1980s. Thus, nitrogen application per bushel of corn produced is down more than 30% since the early 1980s, while potassium and phosphate usage per bushel are down some 40%.”

Category: Research

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