Now the development of science and technology We know how much potassium sulfate awareness, potassium sulfate is a colorless chemical crystals, because of his hygroscopicity is small, it is not easy to agglomerate, so in use is more convenient. Acidic soil, the excess sulfate will make the acidity of the soil weight, but also can increase the active aluminum in the soil, iron is toxic to crops. Under the conditions of flooding, too much sulfate will be reduced to produce hydrogen sulfide, will make the root damage black. So long-term consumption of potassium sulfate with farm manure, alkaline phosphate and lime with, which can reduce its acidity, in practice should also be combined with drainage measures, can improve ventilation. In calcareous soils, calcium and calcium in the soil and soil do not easily dissolve calcium sulfate. Too much calcium sulfate will cause soil compaction, this time should pay attention to increase farm manure. In the avoidance of chlorine on the focus of the use of crops, not only can increase production, but also can improve product quality.