Water-soluble fertilizer is a new type of fertilizer that has appeared in China's chemical fertilizer industry in recent years. It is in line with the status quo of modern agricultural development. It is a quick-acting fertilizer with good water solubility and no residue. It can be completely dissolved in water and can be cropped. Roots and leaves are directly absorbed and utilized. The use of water and fertilizer, the application of water and fertilizer, the integration of water and fertilizer, its effective absorption rate is more than double that of ordinary fertilizer, reaching 80%-90%, but today the price of water soluble fertilizer is uneven, this is What is the reason, how to distinguish the advantages and disadvantages of water soluble fertilizer?
Nowadays, the price difference of fully water-soluble fertilizers on the market is large. Some 6,000 yuan can buy one ton, while some tons can reach more than 10,000 yuan, or even more than 20,000. Why is the difference so big?
According to industry insiders, this is mainly related to the source of potassium and the level of raw materials used. Let me talk about the source of potassium. At present, there are three main sources of fully water-soluble fertilizers on the market: potassium chloride, potassium sulfate, potassium nitrate and potassium dihydrogen phosphate.
In general, the potassium chloride type fertilizer has the lowest price, followed by the potassium sulfate type, and the best is potassium nitrate and potassium dihydrogen phosphate. Because potassium sulfate and potassium chloride fertilizers contain a large amount of sulfate ions and chloride ions, long-term application can easily lead to crops lacking medium-level elemental calcium, so it is easy to cause fruit cracking, poor growth, yellow leaves, and even fruit umbilical cord And other diseases occur.
In addition, the long-term use of fertilizers containing sulfate ions and chloride ions will greatly reduce the absorption efficiency of nitrate nitrogen, and the soil salt content in the greenhouse will be enriched and the soil compaction will not be conducive to crop root growth. In the case of potassium nitrate and potassium dihydrogen phosphate-type water-soluble fertilizers, any of these two types can be absorbed and utilized by the crops, and the above-mentioned symptoms such as salt accumulation do not occur, and the corresponding price is also the highest.
Secondly, from the level of raw materials used, high-quality water-soluble fertilizers are generally produced using food-grade and industrial-grade raw materials. Industrial grade raw materials are several thousand dollars higher than agricultural grade raw materials, and are obviously superior to agricultural grade raw materials in terms of fertilizer nutrient content, water solubility, absorption efficiency, heavy metal content, and product stability.
Many bad water-soluble fertilizers are produced with agricultural-grade raw materials. The price is low, the quality is difficult to guarantee, and more unscrupulous manufacturers use the whole water to make a fuss, and install raw materials such as pure magnesium sulfate, ammonium sulfate, potassium nitrate and so on.
In water-soluble fertilizers, the source of phosphorus is very important, and it is also related to the price of fertilizer, which is why the price of potassium nitrate is much lower than that of whole-water-soluble fertilizer. Finally, on the basis of the formula, according to the technical advantages of each manufacturer, a good water-soluble fertilizer will add some additives to formulate the water-soluble fertilizer, in order to further improve the fertilizer utilization rate and improve crop yield and quality.
However, many unscrupulous merchants add hormones and other substances to water-soluble fertilizers, and pursue short-term effects. The ultimate victims are farmers. In addition, there is one of the easiest ways to identify the pros and cons of water-soluble fertilizers, that is, high-quality water-soluble fertilizers generally do not have obvious ammonia smell and pungent hormonal taste. When you buy, you only need to smell it. Bad.
This article URL: Water-soluble fertilizer price gap, identification of advantages and disadvantages, there are ways to high-quality water-soluble fertilizer, no obvious pungent ammonia
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