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22 May 2015United States Corn: Fertilizer Use Efficiency Doubles between 1980 and 2014

Fertilizer use efficiency has many definitions. One of the most useful is "partial factor productivity" (PFP). The following four charts show trends for PFP for nitrogen (N), phosphorus (P), and potas ...

15 Nov 2012Phosphorus Placement for Corn, Soybeans, and Wheat

Presented at the 42nd Annual North Central Extension-Industry Soil Fertility Conference. 14-15 November 2012. Des Moines, IA

15 Sep 2009Stalk Rot in Corn

Corn growers in Eastern Canada and across the Corn Belt occasionally observe high levels of lodging and stalk rot.