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Ideal nitrogen fertilizer rates in Corn Belt have been climbing for decades, study shows
The amount of nitrogen fertilizer needed to maximize the profitability of corn production in the Midwest has been increasing ...
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Do Soybeans Need Nitrogen Fertilizer?
The rest comes from the soil, either from that left over from fertilizing the previous corn crop or from soil organic matter mineralization carried out by soil microbes. Nitrogen fixation takes a ...