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Interpretive Summaries:
2006 - Sulfur and Nitrogen Starter Fertilizer in Michigan Corn
2005 - Sulfur and Nitrogen Starter Fertilizer in Michigan Corn
Sulfur and Nitrogen Starter Fertilizer in Michigan Corn, 2006
Deposition of sulfur (S) from the atmosphere has been cut in half over the past 20 years in Michigan. Growers are showing interest in improving their starter fertilizer blends for corn. The objective of this project was to test combinations of N, P, and S. Studies were conducted at 11 sites over the 2005 and 2006 crop seasons. Starter S fertilizer improved the S content of whole corn plants at growth stages up to silking. Grain yield, however, was improved by S at only one of 11 site years. The most likely benefit from ammonium sulfate, as a component of starter fertilizer, appears to occur with no-till corn grown on sandy, low organic matter soils. MI-11F
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