Sulfur Deficiency In Corn, Soybean, Alfalfa, And Wheat

In recent years, sulfur (S) deficiency has been diagnosed in corn, soybean, alfalfa, and wheat in the Midwest, including Indiana and Michigan. There are a number of reasons why S deficiency appears to be more common, including reduced atmospheric S deposition, continued and increasing crop removal of S, higher amounts of crop residues, greater use of no tillage, and earlier planting into cool wet soils. It is wise to consider S deficiency as a cause of crop growth problems where yellowing of the foliage is the primary symptom.

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Fig 4. Sulfur deficient corn in the foreground (pale green) and S sufficient corn in the background (dark green). Sulfur deficient corn plants may show striping as well as an overall yellow color. Image: RL Nielsen, Purdue University

Fig 4. Sulfur deficient corn in the foreground (pale green) and
S sufficient corn in the background (dark green). Sulfur deficient
corn plants may show striping as well as an overall yellow color.
Image: RL Nielsen, Purdue University

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