There are several reasons for this:
First, vegetable farmers generally pay more attention to nitrogen fertilizer and phosphate fertilizer, nitrogen fertilizer is fast, phosphate fertilizer is cheap, and potassium fertilizer has a slightly later intuitive effect, and the application is less or not used;
Second, the soil that has been planted with a single vegetable for a long time is prone to nutrient deficiency;
Third, some vegetable farmers do not know enough about the characteristics of root vegetables and melons and fruits with high potassium requirements, and do not reapply potassium fertilizer;
Fourth, potassium fertilizer was not applied in time after the harvest of the previous vegetables; Fifth, the soil itself is potentially deficient in potassium, and it is difficult to release potassium solidified by the soil.
In order to give full play to the role of potassium fertilizer in vegetable production, it is necessary to improve the understanding of the role of potassium fertilizer application, formulate good potassium fertilizer, and give full play to the potential of yield increase.
The role of potassium
In the process of vegetable growth, potassium acts as an activator of a variety of enzymes, which can promote a variety of metabolic reactions, regulate cell concentration and cell wall permeability, accelerate the transportation and storage of photosynthetic products, increase the sugar content of melons and fruits, and increase sweetness. At the same time, it can also enhance the comprehensive resistance to drought and cold, disease and other comprehensive stress resistance. As a result, yield can be increased and quality can be improved.
Why vegetables have different degrees of potassium deficiency symptoms are introduced here, I hope it will help you. If you want to buy high-quality and high-yield vegetable seeds, you can download the seed bank App, and the country's excellent vegetable varieties are available for everyone to choose.
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