Sulfur is an essential nutrient for plant growth used in the manufacture of sulfuric acid, phosphate fertilizers, plant protection products, and the steel industry.
Along with nitrogen, phosphorus, and potassium, sulfur is essential for growth and the development of all crops and it makes the use of other nutrients more efficient.
It also lowers PH in alkaline soils.
The granulated form of sulfur is easier to handle since it is slower to leach into the soil.