Potassium sulfate is a physiological acidic fertilizer. As the crops absorb more potassium ions than the absorption of sulfate ions is relatively more or faster, will lead to acidification of rhizosphere soil, thereby increasing the soil phosphorus and trace elements in the effectiveness of nutrients. This physiological acidification is particularly important for northern rice breeding. In order to cultivate strong seedling and reduce pests and diseases, the requirements of the rice seedling bed or soil nutrient soil pH value of 4.5 to 5.5, for this purpose, in addition to sulfuric acid and sulfuric acid and nitrogen fertilizer, potassium fertilizer should be potassium sulfate, 50 grams per square meter, or 5 grams per tray. This is helpful for acidifying the rhizosphere soil.
And improve the pertinence of potassium sulfate application. Potassium sulfate has a broad spectrum of various soils and crops, but its price is higher, so better to make steel on the edge. When several different soils and crops are present, priority is given to the crops or soils most in need, such as fruit trees, vegetables and other economic crops, which require more potassium sulphate than field crops; legumes, rapeseed, potatoes and sugar And potassium sulphate should be applied more in the arid and saline soils of dry land than in other soils.
Balanced fertilization. Balanced fertilization is the use of potassium and nitrogen and phosphorus fertilizers and other nutrients with the application. A large number of production practices and scientific experiments show that only the necessary and lack of crop nutrients with the application, and other agricultural production measures in close cooperation in order to achieve high quality, high yield, high efficiency and environmental protection objectives. Which should pay special attention to soil fertilization, fertilization will be controlled at the appropriate level, to prevent excessive potassium due to a large amount of crops caused by calcium deficiency, magnesium deficiency
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