The USDA's National Agricultural Statistics Service has posted the results of its Agricultural Chemical Use survey for corn product, which was taken last fall to gauge information about on-farm and post-harvest fertilizer and pesticide use and pest management practices in Wisconsin.
NASS collected data for the 2021 crop year about chemical use and pest management practices used on corn production, which was part of the Agricultural Resource Management Survey.
For fertilizer use, the report found that nitrogen was most widely used on corn in Wisconsin, as state producers applied the chemical to 88 percent of planted acres at an average rate of 142 pounds per acre. Macronutrients phosphate and potash were also applied to the majority of acres, at an average rate of 39 and 78 pounds per acre, respectively. The secondary macronutrient, sulfur, was applied to 45 percent of the corn.
Herbicide active ingredients were also applied to 95 percent of the corn acres planted in Wisconsin. And fungicide active ingredients were applied to 22 percent of field.
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