Once soybean harvest is complete many swine farmers begin applying manure to those acres for the next year's corn crop. Manure applications in Southern Minnesota begin in early October and usually conclude by mid November. A significant proportion of the nitrogen (N) in swine finishing manure is in the ammonium-N form. If warm soil temperatures persist after application, the ammonium-N can nitrify and be susceptible to loss via leaching or denitrification. These N losses have negative agronomic and environmental implications. The University of Minnesota recommends fall fertilizer N be applied after soils are less than 50 degrees at the six-inch depth. This usually occurs in late October in Southern Minnesota.
Applying Instinct as a nitrogen stabilizer for fall applied manure
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