The NPK (Nitrogen, Phosphorus, Potassium) Recommendations Calculator uses soil type, crop code and soil test levels for phosphorus and potassium to provide Clemson recommendations for fertilizer ...

At the closing of each growing season, growers start thinking about the next year, and soil testing is an important part of that planning. The Montana State University Extension Soil Fertility Program ...

Corn and soybean harvest continues to move slowly forward. The rains of the past two weeks have really slowed the pace of activity. Soils vary now from moist to wet, and any additional rain will take ...

The Iowa Legislature wants to spend $1 million next year to revise the state’s long-standing nitrogen fertilizer calculator used in seven corn-growing states. The money would be used to update the ...

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 ...

It makes sense that farmers would want to apply only as much fertilizer as they need to maximize their yield. Any more and it’s money wasted on fertilizer that likely will run off into a nearby stream ...