The reaction of potassium sulfate in different soils and the matters needing attention:
In acidic soils, excess sulfate radicals will increase the acidity of the soil and even aggravate the effects of active aluminum and iron in the soil on crops. In practice, we should also combine drainage and field drying measures to improve ventilation.
Second, in calcareous soil, sulfate and calcium ions in the soil produce calcium sulfate (gypsum), which is not easily soluble. Too much calcium sulphate will cause soil compaction. At this time, attention should be paid to increasing farm manure.
Introduction to Potassium Sulfate:
Potassium sulfate is a salt composed of sulfate ions and potassium ions. Under normal conditions, it is colorless or white crystals. Under flooding conditions, too much sulfate will be reduced to produce hydrogen sulfide, which will cause the roots to become black. Therefore, long-term use of potassium sulfate should be combined with farm manure, alkaline phosphate fertilizer and lime to reduce acidity, in granules or powder. Odorless, bitter taste. Hard quality. Stable in the air. The density is 2.66g/cm3. The melting point is 1069°C. The aqueous solution is neutral, and the pH is about 7.1 at room temperature. 1g is soluble in 8.3ml of water, 4ml of boiling water, 75ml of glycerin, and insoluble in ethanol. Potassium sulfate has low hygroscopicity, is not easy to agglomerate, has good physical properties, and is convenient to apply. It is a good water-soluble potassium fertilizer. Potassium sulfate is also a chemically neutral, physiologically acidic fertilizer.
The role of potassium sulfate:
The main applications include serum protein biochemical test, Kjeldahl nitrogen catalysts, preparation of other potassium salts, chemical fertilizers, preparation of glass, alum, etc.