October 3, 2000

Test livestock manure for nutrients to maximize fertilizer savings

With fertilizer prices on the rise, making the most of the the nutrients in livestock manure can provide a sizable payoff. Testing the manure for nutrient content is a key to maximizing that payoff, says Chuck Schwartau, Goodhue County educator with the University of Minnesota Extension Service.

"Most farmers test their soil on a regular basis," says Schwartau. "Livestock producers need to think of manure testing as equally important to soil testing. Unless manure is tested, it's just material to spread on a field."

Schwartau says the nutrient value of manure can be quite different from farm to farm, and even from unit to unit on the same farm with different classes of livestock.

"Manure testing will tell you the amount of each nutrient available," he says. "Combining the test result with a simple calibration of your manure spreader will help you determine how much homegrown fertilizer you have for your farm. Then you will be prepared to apply the manure to the right fields and reduce your commercial fertilizer needs accordingly."

More information about manure testing and spreader calibration is available from your county Extension office, Soil and Water Conservation District Office, or a reputable fertilizer dealer. A publication entitled "Livestock Manure Sampling," FO-6423, is available for purchase from county Extension offices in Minnesota, or by calling (800) 876-8636 or (612) 624-4900.

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Source:  Chuck Schwartau, (651) 385-3100
Editor:    Joseph Kurtz, (612) 625-3168, jk@umn.edu

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URL: http:// www.extension.umn.edu/extensionnews/2000/TestLivestockManureForNutrients.html  This page was updated May 21, 2002 .
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