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Potassium fertilizer, the full name of potassium fertilizer. Potassium is the main nutrient fertilizer. The potassium content in plants generally accounts for 0.2%~4.1% of the dry matter weight, second only to nitrogen. Potassium is involved in the activation of more than 60 enzyme systems, photosynthesis, transport of assimilated products, carbohydrate metabolism and protein synthesis during plant growth and development. When the potassium fertilizer is applied in an appropriate amount, the crop stalk can grow strong, prevent lodging, promote flowering and fruiting, and enhance drought, cold and disease resistance.
Potassium fertilizer application depends on factors such as crop type, agricultural production level, climate and soil conditions. The content, form and transformation of potassium in soil and the ability to supply potassium are important basis for rational distribution and application of potassium fertilizer. Promoting the activation of enzymes is one of the most important functions of potassium in plant growth. It promotes the transportation of photosynthesis and photosynthetic products. 1 Improves photosynthetic efficiency; 2 regulates the opening and closing of pores, and controls the ingress and egress of CO2 and water; 3 promote the synthesis of carbohydrates and accelerate the flow of photosynthetic products. Promotes protein synthesis.
Potassium fertilizer can be used as base fertilizer, and can also be used as top dressing. Some varieties can also be used as foliar fertilizer, but the application effect of base fertilizer and foliar fertilizer is good. Potassium fertilizer is used as the base fertilizer to meet the demand for potassium in the whole growth period of crops. It is especially important for crops with short growing season and soils with obvious potassium deficiency. For crops with long growing seasons such as cotton, a combination of base application and foliar application can be used. For sandy soils, a combination of base application and topdressing can be used.
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