Product Introduction

Potassium sulfate is a kind of inorganic salt, chemical formula is K2SO4, white crystalline powder. The appearance of agricultural potassium sulfate is mostly light yellow, potassium sulfate's hygroscopicity is small, not easy to caking, good physical properties, easy to apply, it is a good water-soluble potash fertilizer, and it is also the main raw material for making non-chlorine nitrogen, phosphorus, potassium ternary compound fertilizer.

Agricultural application

Potassium sulphate is colorless crystal, small hygroscopicity, not easy to agglomerate, good physical properties, easy to apply, it is a good water-soluble potash fertilizer. Potassium sulphate is also chemically neutral and physiologically acidic fertilizer. Potassium sulphate is a kind of non-chlorine, high-quality and high-efficiency potash fertilizer, especially in the cultivation of chlorine-sensitive crops such as tobacco, grape, sugar beet, tea tree, potato, flax and various fruit trees, which is an indispensable and important fertilizer; it is also the main raw material of high-quality nitrogen, phosphorus and potassium ternary compound fertilizer.

Potassium sulphate compound fertilizer is produced by low temperature conversion of potassium chloride, chemical synthesis and slurry granulation process, with good stability. In addition to the three major nutrients of N, P and K which are essential for plants, it also contains middle and trace elements such as S, Ca, Mg, Zn, Fe and Cu, etc. This kind of fertilizer is suitable for all kinds of cash crops. This kind of fertilizer is suitable for all kinds of cash crops, especially for chlorine-sensitive crops. The main components of potassium sulphate compound fertilizer are MAP (monoammonium phosphate) and DAP (diammonium phosphate), ammonium sulphate (mainly obtained by neutralizing sulphuric acid and gas ammonia in low temperature conversion). Potassium sulfate, urea and other impurities such as calcium sulfate, iron, aluminum, magnesium and other salts of phosphoric acid, as well as trace amounts of unreacted potassium chloride.

Potassium sulphate is also a chemically neutral, physiologically acidic fertilizer. Reactions in different soils and matters to be noted:

First, in acidic soils, excess sulphate will aggravate the acidity of the soil and even exacerbate the toxicity of active aluminum and iron in the soil to the crop.

Under flooded conditions, excess sulphate will be reduced to produce hydrogen sulphide, causing to the roots to suffer and turn black. Therefore, long-term consumption of potassium sulfate should be combined with farmyard manure, alkaline phosphate fertilizer and lime to reduce acidity, and in practice should also be combined with drainage and sunshine measures to improve aeration.

Secondly, in calcareous soils, sulfate and soil calcium ions generate calcium sulfate (gypsum) that is not easily dissolved. Excessive calcium sulfate will cause soil crusting, at this time should pay attention to increase the application of farmyard manure.

Thirdly, focus on the use of chlorine avoidance crops, such as tobacco, tea trees, grapes, sugar cane, sugar beet, watermelon, potatoes, etc. Increased application of potassium sulfate not only increases the yield, but also improves the quality. Potassium sulphate is more expensive than potassium chloride, with fewer supplies, so it should be used on chlorine-sensitive and sulphur- and potassium-loving cash crops, and the benefits will be better.