With U.S. corn production reaching record levels over the past few years, averaging 160 bushels per acre in 2004 and 143 bushels per acre in 2005, fertilization has become the key component to achieving those high yields. Phosphorus (P) and potassium (K) are frequently limiting nutrients for crop production in North America and should be tested for and replaced each year as needed.

"The best and most accurate way for growers to know what nutrients will be needed by the crops they grow is to conduct a soil test," says Dan Froehlich, Ph.D., U.S. Agronomy Manager for The Mosaic Company. "This management tool allows growers to take much of the guesswork out of a soil fertility program and to predict which nutrients are needed in certain fields."

Estimates made by the Potash and Phosphate Institute (PPI) show that many growers in key production areas are not replacing the soil nutrients that have been removed by their crops. These nutrient deficits may cause yield shortfalls in the future if soil tests reveal a drop below critical levels.

Source Mosaic Company