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The article focuses on the cover crop enthusiast Mike Starkey's concern of sulfur deficiency in corn production due to the effect of Clean Air Act, which reduced sulfur emissions.

The author focuses on the need of more sulfur for growing forage plants due to increase efforts to reduce acid rain containing sulfuric acid and mentions other topics such as sulfur deficiency symptoms, a tissue test for determining sulfur content and the use of manure for forage growing.

The article discusses the benefits of sulfur in crop production, citing U.S. university trials that adding sulfur may boost yield on poor quality soils.

The article focuses on the role of sulfur and calcium presents in the soil for maximizing the corn, soybean and alfalfa yields and the sulfur is important in protein synthesis and it deficiencies can negatively impact crop quality and yield.

The article focuses on the factors that have resulted in increased need of sulfur by forage plants including increasing efforts to reduce acid rain and removing of sulfur by grass and alfalfa and mentions the use of tissue test and commercial fertilizer for maintaining sulfur content in soil.

The article focuses on the need to change soil-test data for high productivity as current soil-test data may not reveal correct information on the removal of crop nutrients from soil. It mentions other changes that can impact agricultural productivity which include the reduction in sulfur content and using sulfur-enhanced fertilizer, evaluating macronutrient deficiency and analyzing sulphur levels in plant. It presents views of agricultural expert Thomas Jensen.

The article focuses on the impact of sulfur applications in Minnesota corn farms and offers information on sulfur application guidelines and management tips.

The article highlights on learning more about sulfur wherein most of the sulfur in soils are found in organic matter along with information on sulfur application, rates, and sources that would help maximize corn yields in farms in Minnesota.