Applying needed fertilizer nutrients in the right amounts is a key aspect of successful and profitable crop production. Failing to provide enough of the right fertilizer can limit crop yields and reduce the benefits from other crop inputs such as seed, labor and fuel. However, applying unneeded fertilizer is a waste of money and time and may be an environmental concern.
A newly-revised publication from the University of Minnesota Extension Service can help in making good fertilizer decisions. Its title is "Fertilizer Recommendations for Agronomic Crops in Minnesota." The authors are U of M soil scientists George Rehm, Mike Schmitt, John Lamb and Roger Eliason.
The publication has fertilizer recommendations for most of the crops commonly grown on Minnesota farms. Included are row crops such as corn and soybeans, small grains such as wheat and barley, legumes such as alfalfa and clover, and several kinds of grasses. There are also recommendations for canola, sunflowers, sugar beets, wild rice and several other crops.
Fertilizer recommendations are based on the results of soil sampling and analysis of soil samples. The publication includes a section explaining soil sample analytical reports.
"Fertilizer Recommendations for Agronomic Crops in Minnesota" is on the Internet at www.extension.umn.edu/distribution/cropsystems/DC6240.html Printed copies are available at a nominal cost from county offices of the U of M Extension Service. Or, call (800) 876-8636 or (612) 624-4900 and ask for item BU-06240.