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Compare your nitrogen sources by price

Fri, Sep 30th, 2011
Posted in Agriculture

This past week I came across the updated version of the Nutrient & Manure Management Tables, produced by University of Minnesota Extension and the Minnesota Department of Agriculture. This jam-packed, one page, two-sided publication is loaded with vital information for farmers.

The front side is mainly related to manure management. It covers Annual Manure Production and Nutrient Excretion from Livestock, Nutrient Content of Stored Manure, Nitrogen Losses as Affected by Method of Handling and Storage, Nitrogen Availability and Loss as Affected by Method of Application and Animal Species, and Calibrating Your Manure Spreader.

The back-side is more specific to fertilizer. It includes Nutrient Removal in the Harvested Portion of the Crop, Common Fertilizer Analyses, Legume Nitrogen Credits, Conversion Factors, and the one that I found very interesting, "Nitrogen Sources Per Pound Conversion. I think the chart below will be very useful when comparing prices for your various sources of spring nitrogen fertilizer.

For example, if anhydrous ammonia (82-0-0) is $1,000 per ton, the nitrogen is costing $0.61 per pound. The comparison for urea (46-0-0) is $560 per ton to have the same cost of $0.61 per pound. Your other option, UAN (28-0-0), falls between $325 and $350 per ton to get the same $0.61 per pound of nitrogen, or you can do a little calculating and find that $341.60 per ton is $0.61 per pound of nitrogen.

Call the Houston County Extension Office 507-725-5807 or the Fillmore County Extension Office at 507-765-3896 if you would like these charts.

There also a number of Nutrient Management Related Websites listed that provide additional sources of information.

•Certified Manure Testing Laboratories: http://www2.mda.state.mn.us/webapp/lis/manurelabs.jsp

•University of Minnesota Manure Management: http://www.manure.umn.edu/

•Minnesota Department of Ag Manure Management: http://www.mda.state.mn.us/protecting/conservation/practices/manuremgmt.aspx

•Minnesota NRCS Manure Management: http://www.mn.nrcs.usda.gov/technical/ecs/nutrient/manure/manure.htm

•Nitrogen Best Management Practices (BMPs): http://www.mda.state.mn.us/protecting/bmps/nitrogenbmps.aspx

•Nitrogen Rate Calculator: http://extension.agron.iastate.edu/soilfertility/nrate.aspx

•Economics of Manure Management (U of M): http://www.manure.umn.edu/applied/economics.html

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