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1. Do the base fertilizer. Potassium sulphate compound fertilizer has a wide range of nutrients and a wide range of applications. In the application, it is not necessary to apply other chemical fertilizers under normal circumstances. Due to the difference in concentration, the application amount is also different (the concentration of fertilizer commonly found on the market is 25%, 30%, 45%, etc.). For example, when the compound fertilizer with a concentration of 45% is applied as a base fertilizer, 40- per mu is applied. 75 kg, with a certain amount of decomposed organic fertilizer.
2. Do topdressing. At present, the ratio of general-purpose potassium sulphate compound fertilizer commonly used in agricultural resources market is nitrogen, phosphorus and potassium (15-15-15). For vegetables with more nitrogen fertilizer, nitrogen (such as urea) should be applied. It is also possible to use vegetable-specific fertilizers, and the principle of a small number of multiple fertilization should be mastered.
3. Foliar application. From the perspective of production practice, vegetable farmers are less used. When vegetables are severely deficient, they can be sprayed with potassium sulfate compound fertilizer, such as 45% compound fertilizer. The concentration is between 0.1% and 0.3%. It will be fine.
Application of potassium sulfate technology to protected vegetables
With the development of the fertilizer industry, the variety of fertilizers is also increasing. Potassium sulphate compound fertilizer is a new type of fertilizer developed rapidly in recent years. Because of its flexible use, nutrient content and high utilization rate, it is favored by the majority of vegetable farmers. However, the application methods and methods should be paid attention to when applying.
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