A: According to insiders, this is mainly related to the source of potassium and the level of raw materials used. Let's talk about the source of potassium. At present, there are three main sources of potassium in water-soluble fertilizers on the market: potassium chloride, potassium sulfate, potassium nitrate, and potassium dihydrogen phosphate. In general, potassium chloride-type fertilizers have the lowest price, followed by potassium sulfate, and most preferably potassium nitrate and potassium dihydrogen phosphate. Potassium sulphate and potassium chloride fertilizers contain large amounts of sulfate ions and chloride ions. Long-term application can easily lead to lack of moderate amounts of elemental calcium, which can easily lead to fruit cracking, poor growth and development, yellow leaves, and fruit umbilical rot. occur. In addition, the long-term use of fertilizers containing sulfate ions and chloride ions will greatly reduce the absorption efficiency of nitrate nitrogen in soil. Soil salt concentration in greenhouses will increase, and soil compaction will not benefit crop root growth. Potassium nitrate and potassium dihydrogen phosphate water-soluble fertilizers are easily absorbed by crops and do not suffer from the above-mentioned symptoms such as salt accumulation. The corresponding price is also the highest. From the point of view of the use of raw materials, high-quality water-soluble fertilizers are generally produced using food grade and industrial grade raw materials. Industrial-grade raw materials are several thousand dollars more per ton than agricultural-grade raw materials, and are significantly superior to agricultural-grade raw materials in nutrient content, water solubility, absorption efficiency, heavy metal content, and product stability. Many poor-quality water-soluble fertilizers are produced using agricultural-grade raw materials. The prices are low, and the quality is difficult to guarantee. More unscrupulous manufacturers use full-water-soluble articles to load raw materials such as pure magnesium sulfate, ammonium sulfate, and potassium nitrate for profiteering. The source of phosphorus in water-soluble fertilizer is very important, and it is related to the price of fertilizer, which is why the price of potassium nitrate is much lower than that of water-soluble fertilizer. Based on the formula, depending on the technical advantages of each manufacturer, good water-soluble fertilizers will add some additives to formulate water-soluble fertilizers. The purpose is to further increase fertilizer utilization and improve crop yield and quality. However, many unscrupulous merchants add hormones and other substances to water-soluble fertilizers to pursue short-term results, but the ultimate victims are farmers. One of the easiest ways to identify the pros and cons of water-soluble fertilizers is that high-quality water-soluble fertilizers generally do not have pronounced ammonia and pungent hormones. Radian Plus Laser Tracker,Laser Tracker Data,Accuracy Measurement Laser Tracker,Adaptive Control Laser Tracker Automated Precision Inc. , https://www.apiasean.com
The same is how to identify the advantages and disadvantages of water soluble fertilizer
Zhou Guo’an, a large planting producer in Qiaomiao Township, Wuyi County, said: The price gap of total water-soluble fertilizers on the market today is huge. Some 6,000 yuan can buy one ton, and some are more than 10,000 yuan per ton, or as much as 20,000 yuan. Yuan, why? How to identify the advantages and disadvantages of water soluble fertilizer?