Product Description
Main components: Calcium dihydrogen phosphate Ca(H_2PO_4)_2 and calcium sulfate CaSO_4. The content of available phosphorus pentoxide (P_2O_5) is 14% - 20% (ordinary superphosphate). The phosphorus content of enriched superphosphate is higher, with the phosphorus pentoxide content being 23% - 35%. It also contains 2% - 4% of ferric sulfate, aluminum sulfate, lead sulfate, about 5% - 10% of free acid, and a small amount of ferric phosphate, aluminum phosphate, magnesium phosphate, etc.
Appearance and properties: It is a powder or granule ranging from grayish white, dark gray to taupe, slightly hygroscopic and corrosive, and can agglomerate in a relatively humid atmosphere.
Characteristics of Fertilizer Efficiency: It is a water - soluble quick - acting phosphate fertilizer. It can provide plants with various nutrients such as phosphorus, calcium, sulfur, and trace amounts of iron, manganese, zinc, copper, magnesium, etc. It can promote the root development, flowering, and fruiting of plants, improve the stress resistance of crops, help to advance the maturity period of crops, increase crop yields, and enhance product quality.
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Application method: Since phosphorus is easily fixed by the soil and has weak mobility, methods such as strip application, hole application, and dipping of seedling roots are usually adopted to reduce contact with the soil and increase contact with the roots of crops.
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Production method: It is obtained by decomposing phosphate rock powder with sulfuric acid. The reaction is divided into two stages: the reaction of sulfuric acid with phosphate rock powder to form phosphoric acid, and the continued decomposition of the remaining fluoroapatite by phosphoric acid to form calcium dihydrogen phosphate monohydrate.
Product Advantages
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Rich in nutrients: It can provide plants with macronutrients such as phosphorus, calcium, sulfur, as well as micronutrients such as iron, manganese, and zinc. It can promote the development of plant roots, flowering and fruiting, improve the stress resistance of crops, help advance the crop maturity period, increase yield and improve quality.
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Good water solubility: The vast majority of it can dissolve in water. The aqueous solution is slightly acidic, with a fast fertilizer effect. It can be quickly absorbed and utilized by crops and can be used as foliar topdressing and seed soaking.
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Widely applicable: It is suitable for various crops and soils, especially in acidic soils where it has a better effect. It can adjust the pH value of alkaline soils to a certain extent.
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Low - cost: The production process is relatively simple, and the raw materials are widely available. Therefore, it is relatively inexpensive, cost - effective, and can reduce agricultural production costs.
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