How to use potassium sulfate compound fertilizer? Key techniques for the application of potassium sulfate fertilizers?
Potassium sulphate compound fertilizer can effectively resist pests and diseases, and is a good fertilizer for agricultural crops. It can also increase production. Good application methods will bring good results. If not, it will be the opposite. What about potassium sulfate compound fertilizer? Do you know the application method of potassium sulfate compound fertilizer?
The potassium sulfate compound fertilizer is produced using low-temperature conversion of potassium chloride, chemical synthesis, and spray-smelting material production process. It has good stability, and contains three major nutrient elements N, P, and K, which are necessary for plants, as well as S and Ca. , Mg, Zn, Fe, Cu and other trace elements. This fertilizer is suitable for a variety of economic crops, especially the chlorine-free crop. The main components of the potassium sulfate compound fertilizer are MAP (monoammonium phosphate) DAP (diammonium phosphate) and ammonium sulfate (mainly obtained by neutralization of surplus sulfuric acid and gaseous ammonia at low temperature). Potassium sulphate, urea, etc. There are some minor impurities such as calcium sulfate, iron phosphate, aluminum, magnesium salts, and traces of unreacted potassium chloride.
Potassium sulphate is a chemical neutral, physical acidic fertilizer, widely applicable to all kinds of soil and various crops, especially avoid chloride, potassium sulfate instead of potassium chloride, and become a good potash fertilizer. Its specific use methods are: 1, can be used as base fertilizer. When using potassium sulphate as a basal fertilizer in dry fields, it is necessary to deeply cover the soil to reduce the crystal fixation of potassium and to facilitate the absorption of crop roots and increase the utilization rate. 2, used as fertilizer. Because potassium is less mobile in the soil, it should be concentrated or applied to the more dense soil layer to promote absorption. 3, can be used as fertilizer and root dressing. The amount of mu for fertilizer is 1.5-2.5 kg. It can also be formulated as a 2%-3% solution for top-dressing.
Second, potassium sulfate compound fertilizer use matters needing attention
1. Potassium sulfate is not as good as potassium chloride in soils with high reducibility such as paddy fields, and the main drawback is that they are prone to hydrogen sulfide poisoning.
2. The price of potassium sulfate compound fertilizer is more expensive than that of potassium chloride. Under normal circumstances, in addition to chlorine-free crops, it is not necessary to use potassium sulfate to use potassium chloride.
3, for cruciferous crops and other crops that require more sulfur, the effect is better, it should give priority to the distribution and use.
Seeing whether or not you have a new understanding of potassium sulfate, we hope that everyone can make good use of potassium sulfate to maximize its effectiveness.