What do the chlorine, sulfur, potassium sulfate and disulfid
发布时间：2021-06-08 发布者：admin 所属类别：COMPANY NEWS
What do the chlorine, sulfur, potassium sulfate and disulfide in compound fertilizer mean? finally understood!
1. Nitrosulfur-based compound fertilizer
It means that the nitrogen element is provided by ammonium nitrate, and the source of potassium is potassium sulfate, or a compound fertilizer made by removing chloride ions from potassium chloride. No biuret, less than 3% chloride ion.
2. Sulfur-based compound fertilizer
It means that the source of potassium is a compound fertilizer made of potassium sulfate, which contains low chloride ions and is less than 3% according to the national standard. It is suitable for various soils and various crops, and can effectively improve the appearance and quality of various cash crops, and can significantly improve the grade of agricultural products. Sulfur-based compound fertilizer is the fourth most important nutrient element after nitrogen, phosphorus and potassium. It can effectively improve the sulfur deficiency in the soil and directly provide sulfur for crops. Sulfur-based compound fertilizer can be used as base fertilizer, top dressing, seed fertilizer and extra-root top dressing; chlorine-based compound fertilizer cannot be used as seed fertilizer and extra-root top dressing to avoid fertilizer damage.
3. Chlorine-based compound fertilizer
It means that the potassium element exists in the form of potassium chloride, which can be divided into mono-chlorine and di-chlorine products. Monochlorine means that in addition to the potassium element in the form of potassium chloride, the nitrogen element is made of urea and other non-chloride ions. Chlorine is a compound fertilizer obtained from potassium in the form of potassium chloride and nitrogen in the form of ammonium chloride. The national standard of compound fertilizer stipulates that compound fertilizer containing chlorine must be marked with chloride ion content, such as low chlorine (containing 3-15% chloride ions), medium chlorine (containing 15-30% chloride ions), and high chlorine (containing 30% chloride ions) the above). Generally speaking, the application of chlorine-based compound fertilizers has adverse effects on the yield and quality of chlorine-free crops such as tobacco, potatoes, sweet potatoes, watermelons, grapes, sugar beets, cabbage, peppers, eggplants, soybeans, lettuce, etc., seriously reducing the economy of this category. Economic benefits of crops. At the same time, the chlorine-based compound fertilizer forms a large amount of residual chloride ions in the soil, which is easy to cause soil compaction, salinization, alkalinization and other undesirable phenomena, thereby deteriorating the soil environment and reducing the nutrient absorption capacity of crops. What needs to be emphasized is that proper application of field crops such as wheat, corn and gastrodia is not only harmless, but also beneficial to increase yield.
4. Urine-based compound fertilizer
It means that in compound fertilizers, nitrogen is obtained in the form of urea. Urine-based compound fertilizers are generally high-nitrogen products, especially compound fertilizers with a nitrogen content of more than 20. Ammonium chloride and ammonium bicarbonate cannot produce such a high nitrogen content. .
5. Disulfide compound fertilizer
Refers to the source of nitrogen is ammonium sulfate and the source of potassium is potassium sulfate. The nitrogen fertilizer in the ordinary potassium sulfate type and sulfur-based compound fertilizer is converted with urea. Everyone knows that the safest form of nitrogen fertilizer is ammonium nitrogen, urea is ammonium nitrate, and its by-product contains biuret, which is easy to burn roots and seedlings in direct contact with roots during application. At the same time, the nitrogen in the urea-based compound fertilizer needs to be converted into ammonia nitrogen and nitrate nitrogen after it is applied to the soil, so that plants can absorb it, and it should be applied in advance in areas with lower temperatures. It can be seen that for most economic crops such as fruits and vegetables, the use of disulfide-based compound fertilizer has the advantages of wide applicability, convenient use, uniform nutrients, and low side effects. It is suitable for various food crops and economic crops and improves the quality of crops. And the increase in output plays an extremely important role.
Different ingredients
Nitrosulfur-based compound fertilizer: contains nitrate nitrogen, which can be directly absorbed by crops.
Sulfur-based compound fertilizer: Low chloride ion, less than 3% according to the national standard, and contains a large amount of sulfur, which can effectively improve the symptoms of soil sulfur deficiency.
Chlorine-based compound fertilizer: contains a large amount of chlorine, which has adverse effects on chlorine-sensitive crops.
Urea-based compound fertilizer: Nitrogen is urea (amide nitrogen). Urea is hydrolyzed into ammonium carbonate or ammonium bicarbonate by the action of urease secreted by soil microorganisms in the soil. When the moisture is appropriate, the higher the temperature, the faster the hydrolysis will be transferred to ammonium carbonate The faster the speed, the faster the fertilizer effect. Ammonium carbonate is very unstable. Therefore, when applying urea-based compound fertilizer, cover the soil deeply to prevent nitrogen loss.
Different crafts
Nitrosulfur-based compound fertilizer: a mixture of nitrate and sulfate containing nitrogen, phosphorus and potassium. The raw materials are high-quality nitrophosphate and potassium sulfate, with high nitrogen and potassium, reasonable formula, good solubility, rapid fertilizer efficiency, and beneficial to phosphorus, potassium and other nutrients Absorption, high fertilizer utilization rate, avoiding or reducing the accumulation of nitrite in plants, it is a new type of compound fertilizer with high quality, high efficiency, environmental protection and pollution-free.
Sulfur-based compound fertilizer: the chloride ion content is extremely low, and the chloride ion is removed during the production process.
Chlorine-based compound fertilizer: The chlorine ions harmful to chlorine-free crops are not removed in the production process, so the product contains a lot of chlorine.
Urea-based compound fertilizer: during the production process, molten urine made from urea or molten urine made by heating solid urea is mixed with potassium chloride or potassium sulfate to prepare a slurry.
Different scope of application
Nitrosulfur-based compound fertilizer: suitable for dry crops, especially suitable for sulfur-loving and chlorine-deficient crops or sulfur-deficient, saline-alkaline soils. There is no residual pollution. It can be used as a base or top dressing to meet the nutrient needs of crops in different growth periods.
Sulfur-based compound fertilizer: suitable for various soils and crops, and can effectively improve the appearance and quality of various cash crops, and can significantly improve the grade of agricultural products.
Chlorine-based compound fertilizers: have adverse effects on the yield and quality of chlorine-sensitive crops, seriously reducing the economic benefits of this type of cash crops.
Urea-based compound fertilizer: Biuret is easy to produce in the production process. When used as seed fertilizer, it should be separated from seed fertilizer.
Different fertilizer efficiency
Nitrosulfur-based compound fertilizer: Compared with other traditional compound fertilizers, it has high nitrogen and high potassium, reasonable formula, good solubility, fast fertilizer efficiency, good absorption of nutrients such as phosphorus and potassium, and high fertilizer utilization.
Sulfur-based compound fertilizer: Sulfur is the fourth most important nutrient element after nitrogen, phosphorus, and potassium. It can effectively improve the sulfur deficiency in the soil and directly provide sulfur for crops.
Chlorine-based compound fertilizer: Forms a large amount of residual chloride ions in the soil, which is easy to cause soil compaction, salinization, alkalinization and other undesirable phenomena, thereby deteriorating the soil environment and reducing the nutrient absorption capacity of crops, but chloride ions can promote photosynthesis and Fiber formation and other effects, especially suitable for fiber crops such as hemp.
Urine-based compound fertilizer: After the nitrogen in the fertilizer is applied to the soil, it needs to be converted into ammonia nitrogen and nitrate nitrogen to be absorbed by plants. Therefore, during the application process, areas with lower temperatures should be applied in advance.
Different application methods
Nitrosulfur-based compound fertilizer: can be used as base fertilizer or top dressing to meet the nutrient needs of crops in different growth periods.
Sulfur-based compound fertilizer: can be used as base fertilizer, top dressing, seed fertilizer and extra-root top dressing.
Chlorine-based compound fertilizer: It can be used as base fertilizer and top dressing. When using base fertilizer and seed fertilizer, it should be mixed with organic fertilizer and phosphate rock powder on neutral soil and compatible soil.
Urine-based compound fertilizer: because it contains biuret, in the process of application, care should be taken to burn the seedlings, and at the same time, apply deep soil to prevent the loss of ammonia. The specific application scope of urea-based compound fertilizer depends on whether the fertilizer contains chloride ions or sulfur elements. For example, the application scope of chloride ions is in accordance with the chlorine-based compound fertilizer, and the application scope of sulfur-based compound fertilizer is in accordance with the application scope of sulfur-based compound fertilizer.
