Potassium sulfate is a white powder, with good physical properties and easy to use. It is a very good water-soluble potash fertilizer. The standard for full water solubility is no sediment or floating matter. It can be used for drip irrigation. After the water is dissolved in the glass, it is clear and transparent.

Agricultural potassium sulfate is suitable for tobacco, sugar cane, potato, sweet potato, tea and other potassium-avoiding chlorine-free crops and sulfur-like cruciferous crops. Can be used as base fertilizer, top dressing and root top dressing.

As a base fertilizer, generally apply 8-10 kg per acre, and as a seed fertilizer, apply 1.5-2.5 kg per acre, as an extra-root top dressing, spraying the concentration of 0.5-2%. It is also suitable for all kinds of soil, but acidic soil should be applied in combination with organic fertilizer, lime or other alkaline fertilizers to prevent soil acidification.

SOP main effects on the quality of crop products are:

① Can promote crops to make better use of nitrogen, increase protein content, and can promote the production of sugar and starch;

②Enlarge nucleoli, seeds, fruits, tubers and roots, and have a beautiful shape and color;

③ Increase the oil content of oil crops and increase the content of vitamin C in fruits;

④ Speed up the maturity of fruits, vegetables and other crops, so that the maturity period tends to be consistent;

⑤Enhance the product's resistance to bruising and natural decay, extend the storage and transportation period;

⑥Increase the strength, length and fineness of cotton and hemp fiber, color purity.