1. It is a kind of fully water-soluble fertilizer with high phosphorus and potassium. After application, crops can quickly supplement phosphorus, potassium and various trace elements.
2, reduce crop deficiency symptoms, such as leaf yellowing, deformities, lobules, falling flowers, cracked fruit and other phenomena.
3. It is not easy to be fixed in the soil, easy to be absorbed, and the absorption rate is high.
4, not easy to antagonize with trace elements, PH value is neutral, can be mixed with most pesticides and fertilizers.
5. When pathogenic bacteria invade, potassium dihydrogen phosphite can induce lignin production in seedling cells, increase the thickness and hardness of cell wall, and inhibit pathogen invasion and expansion.
6. Trivalent phosphorus ion has strong killing effect on fungi and bacteria, and has preventive and therapeutic effect on most diseases such as ulcers.
7, potassium dihydrogen phosphite in foreign countries is a registered fungicide, disease resistance, frost mold, powdery mildew, black star disease, phytophthora, root rot and so on.
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Potassium dihydrogen phosphite
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CAS RN
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13977-65-6
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Molecular formula
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KH2PO3
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Molecular weight
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120.07776
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Properties
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white crystal
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Item
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Index
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Assay(%)¡Ý
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98-99
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P2O5(%)¡Ý
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58
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K2O (%)¡Ý
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38
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As(mg/kg) ¡Ü
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5
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Heavy metals(mg/kg) ¡Ü
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20
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Water insoluble matter(%)¡Ü
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0.3
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Uses
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intermediate of insecticide and bactericide, Used as high efficient P/K fertilizer; sequestrant of Ca/Mg ions, and disinfectant in industrial water treatment. It can be used as substitute of organic phosphite water treatment agent
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