Potassium sulfate can provide the resistance of crops, so that the stem dry grow strong, prevent lodging, promote flowering and fruiting, enhance drought, cold, and pest resistance. It can induce the crops to use nitrogen better and increase the protein content. and can promote the formation of sugar and starch. Make walnut, seed, fruit and tuber, root tuber grow, shape and color beautiful. Increase oil content of oilseed crops. Potassium Sulphate Increase the content of vitamin C in the fruit. Accelerate ripening of fruits, vegetables and other crops to bring about a convergence of maturity. Increase product resistance and natural decay ability, prolong storage period. Increase the strength and fineness of cotton and hemp fiber, and color purity. Potassium sulfate is a kind of quick-acting potash fertilizer.
In acidic soil, the excess sulfate root can aggravate the acidity of the soil, and even aggravate the toxicity of active aluminum and iron to crops in the soil. Under flooded conditions, too much sulfate will be reduced to produce hydrogen sulfide, Potassium Sulphate causing the victim to become black. Therefore, the long-term use of potassium sulfate with manure, alkaline phosphate and lime, reduce acidity, in practice should be combined with the drainage of the field measures to improve ventilation. Secondly, in calcareous soil, Potassium Sulphate calcium sulfate (gypsum) is not easily dissolved in sulfate and soil. Too much calcium sulfate will cause soil compaction, and attention should be paid to manure. Third, the focus on the use of chloride crops, such as tobacco, tea tree, grapes, sugar cane, sugar beets, watermelon, yam and other potassium sulfate not only increase production, but also improve quality. Potassium sulfate is more expensive than potassium chloride, supply less, Potassium Sulphate should be focused on chlorine-sensitive and hi-sulphur potassium, economic crops, the benefits will be better.
Potassium sulfate is a chemical neutral, physical acidic fertilizer, widely used in all kinds of soil and various crops, especially bogey chloride, potassium sulfate instead of potassium chloride, become a good potash. Its specific use methods are:
(1) can be used as base fertilizer. When using potassium sulfate as basal fertilizer in dryland, it must be deeply applied to reduce the crystal fixation of potassium, Potassium Sulphate which is beneficial to the uptake of root system and the utilization rate.
(2) used as top dressing. Potassium Sulphate Because of the small mobility of potassium in soil, it is necessary to apply the concentrated application or acupoint to the denser soil layer in order to promote absorption.
(3) It can be used as fertilizer and root dressing. For the use of 1.5 ~ 2.5 kilograms of fertilizer, can also be made into $number solution, as the root outside the top dressing.
The above is the role of potassium sulfate and the use of the method.
Potassium sulfate can be used as basal fertilizer, top dressing, fertilizer and root dressing. Applicable to a variety of crops, more applicable to cruciferous and other sulfur-requiring crops and the above-mentioned chlorine-repellent crops application. However, in dryland, Potassium Sulphate soil compaction is easy to be caused, preferably with alkaline fertilizer or organic fertilizer.