Gary Hergert, Rex Nielsen and Jim Margheim
With the fertilizer application season approaching, it is once again time for producers to make decisions as to what their fertility programs will be. Soon many fertilizer-application rigs will be in the fields, spreading great quantities of fertilizer.
Because the use of fertilizer has become such an integral part of modern farming, we rarely give any thought as to where it comes from, how long it has been used and what impact it has had on our food production. With our current ability to test our soils nutrient levels and then convert those soil tes...
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