Three land-grant universities in the Eastern Corn Belt are updating fertilizer recommendations to be more precise with soil sampling and reduce application rates.
Michigan State University’s Kurt Steinke says the Tri-State Fertilizer Recommendations for the first time call for denser soil sampling of fields and more core samples.
“This is probably one of the big changes that we’ve seen over the last 20 to 25 years versus the preceding 20 to 25 years,” he says.
