Whether you’re a farmer or a gardener, you can use the 4 Rs to help keep nutrients and fertilizer in the soil. The 4 Rs stand for right source, right rate, right time and right place. These principles ...
AMES, Iowa – The amount of nitrogen fertilizer needed to maximize the profitability of corn production in the Midwest has been increasing by about 1.2% per year for the past three decades, according ...
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