The production cost of compound water-soluble fertilizer is generally higher than that of conventional nutrient fertilizers. It is required that all kinds of raw materials are completely water-soluble, so the materials are more expensive. Although the production of liquid water soluble fertilizer is less than conventional compound fertilizer, its storage, transportation and application require specialized equipment and the cost is high. For example, in order to prevent crystallization and precipitation during the cooling of the solution during the low temperature season, the storage and transportation of the liquid fertilizer requires advanced and expensive equipment. Therefore, the price of water-soluble fertilizers is generally higher than that of large-scale fertilizer products.
In the application of farmland, the application of such fertilizers is not the same as that of large fertilizers. Generally, it is combined with irrigation, and the fertilizer and irrigation water are integrated into the root soil or crop leaves through different irrigation methods. According to the different irrigation methods, fertilization can be divided into flushing, spraying and fertilizing. The application of the solid water soluble fertilizer is first dissolved and formulated into a mixed solution, followed by application or spraying. The liquid water soluble fertilizer needs to be equipped with pipelines, storage tanks, fertilizer applicators and other ancillary equipment. The fertilizer is easily dissolved into the irrigation water, which can be sprayed and drip irrigation, or directly diluted with water to be sprayed with foliar fertilizer.
Advantages of water-soluble fertilizer: First, the use of water, fertilizer and application, water and fertilizer, to achieve water and fertilizer integration, high fertilization efficiency, and can reduce the total amount of fertilization, play the synergistic effect of fertilizer and water, so that the efficiency of fertilizer and water use Significantly improved. Second, the fertilizer efficiency is fast, which can solve the nutritional needs of high-yield crops in the rapid growth period.
Disadvantages of water-soluble fertilizer: First, the price of water-soluble fertilizer is generally high, which is not conducive to popularization. Second, it is fast-acting and difficult to store in the soil for a long time. The amount of fertilizer should be strictly controlled. If the single use is slightly more, it will cause the loss of fertilizer, which will reduce the economic benefits of fertilization, fail to achieve the goal of high yield, high quality and high efficiency, and will also cause pollution of the water environment, which is not conducive to sustainable development.
In terms of application, the key to the application of water-soluble fertilizers is to master the principle of timely and appropriate combination of water and fertilizer. At present, the fertilization techniques under different cultivation systems and the nutrient demand rules during the growth of major crops, suitable fertilization period, fertilization quantity, etc. Less. The rich humic acid hydrolysate is converted from organic matter, which is rich in nutrients required by plants, and can improve soil compaction, acidification and other problems, including humic acid It can greatly improve crop yield and quality, and can improve crop resistance and make crops grow healthier.
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