Iowa corn growers reduce nitrogen by 38% since 1980, foresee another 20% drop

October 28, 2010 |

In Iowa, Dean Taylor of the Iowa Corn Growers Association responded to an editorial in the Des Moines Register, and highlighted that Iowa farmers have reduced nitrogen fertilizer application rates per bushel have declined by 38.3 percent since 1980 and phosphorus application rates by 52.4 percent.

Taylor also noted that Iowa farmers have reduced average fertilizer application to less than 1 pound per bushel, or 20 percent lower than the targets suggested by the Register. Taylor also noted that Iowa farmers are developing a new modification to corn genes that would further reduce nitrogen needs by 20 percent.

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