Is Sulfur Needed for Alfalfa in Wisconsin?
by John Peters and Carrie Laboski
Extension Soil Scientists, University of Wisconsin
What role does soil type play in sulfur availability to alfalfa?
Research studies in recent years have shown that sulfur (S) may be deficient in some parts of Wisconsin. Sulfur deficiencies are most likely to occur when high S-demanding crops such as alfalfa, canola, or forage brassicas are grown on sandy soils or on other soils that are low in organic matter, far