Cautions for Potassium Fertilizer Application

In the current agricultural crops, the use of fertilizer is very important, crop growth and development of nitrogen, phosphorus and potassium are indispensable, otherwise it will cause crop growth and development or reduce yield. With the popularization of soil testing and formula fertilization technology, most people also have a certain understanding of the application of potash fertilizer, but they still need to pay attention to a lot of problems. Let's take a look at it with the editor.

1. Due to soil application

Potash fertilizer should first be put into the land where there is a serious lack of potassium in the soil. In terms of soil texture, the potassium content of sandy soil is relatively low, so potassium fertilizer should be increased, while clay soil often has a high content of potassium, so it can be applied less or not. Potassium sulfate can be applied to potassium-deficient and sulfur-deficient soil, while potassium chloride can not be applied in saline-alkali soil, which may deepen the degree of soil salinization.

2. Pay attention to the period of fertilization

When potash fertilizer should be applied is also a knowledge. In general, potash fertilizer should be applied early and can be applied together with base fertilizer, while for soils with poor fertility, it can be applied in an appropriate amount to reduce the loss of potassium. For example, the absorption of potash fertilizer by corn is mainly concentrated in the seedling stage, but it will not be absorbed at the heading stage.

3. Pay attention to the amount of fertilizer applied

Scientific application of potash fertilizer can increase crop yield, improve crop quality and enhance crop lodging resistance, disease resistance and drought resistance. But any fertilizer application has a certain degree, if potassium fertilizer is applied too much, it will not only cause waste, but also cause yellow leaves, dry heartburn and other physiological diseases, and even affect the yield and quality. The demand for potash fertilizer is different in different crops. Watermelon and fruit trees have lower demand for potash fertilizer, while crops such as peanut, soybean and potato have low demand for potassium.

4. Pay attention to the application method

When fertilizing, we should pay attention to the rational use of nitrogen, phosphorus and organic fertilizer, and to ensure the normal metabolism of crops requires the relative balance of all kinds of nutrients. Potash fertilizer and many fertilizers have mutual attention, among which they are complementary to nitrogen fertilizer, and organic fertilizer can also absorb potassium ions to prevent fertilizer loss. In addition, at present, the utilization rate of potash fertilizer in China is low, so if we want to improve the utilization rate of potash fertilizer, we must use it reasonably, because potash fertilizer is easy to be fixed on the soil surface, so we should try to apply fertilizer at the root as far as possible so that crops can absorb it.

The above points for attention in the application of potash fertilizer, hope to help you, want to know more related knowledge, please follow us.