Calcium sulfate, commonly known as gypsum, exists in nature and can also be synthesized artificially. According to the application, calcium sulfate can be divided into plaster stone and plaster of paris ( hemihydrate gypsum). The content of synthetic gypsum is very low, and the effect of synthetic gypsum is very slow. The cost of synthetic gypsum with high purity is higher than that of natural gypsum. Therefore, it is better to use natural gypsum with high content to regulate the soil and supplement calcium and sulfur for golf course lawn.

Plaster stone is slightly soluble in water (the solubility in water at 20 ℃ is 2.05g/l). Natural plaster stone includes block fiber gypsum, snowflake like snowflake gypsum, and commercial plaster stone is powdery, which is not convenient to be directly applied on lawn. Gypsumate^® calcium is specially produced for regulating the soil of golf course and supplementing calcium and sulfur. It is made of natural plaster stone by crushing (fineness is more than 120 mesh) to meet the needs of golf course. Disintegrating agent is specially added in the production, which can quickly disintegrate and work after application.

Its main features are as follows:

• Using high purity natural gypsum, there is no possible harm to lawn;
• It disintegrates quickly in water, replenishes sulfate ion and calcium ion quickly, and reduces the concentration of sodium ion in soil solution quickly;
• Promote the absorption and utilization of other nutrients by the root system of lawn;
• It has the advantages of uniform particle size, good strength and convenient application.
• Disintegration in 15 – 25 minutes in water.

CaSO₄ · 2H₂O ≥ 95%, i.e. calcium ion ≥ 20%, sulfate ion ≥ 50%.

green grade 0.3mm – 1.0mm, fairway grade 1.0mm – 2.5mm.