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Controlled Release Potassium Nitrate & Controlled Release Phosphoric Acid
Controlled Release Fertilizer

Controlled Release Potassium Nitrate & Controlled Release Phosphoric Acid

The invention relates to a controlled-release fertilizer for grapes and a preparation method thereof. The controlled-release fertilizer is prepared by compounding 4% thermoplastic resin coated potassium nitrate, 5% thermoplastic resin coated potassium nitrate, 4% thermoplastic resin coated ammonium phosphate, 4% thermoplastic resin coated urea, potassium sulfate compound fertilizer and other components. The controlled-release fertilizer for grapes of the invention is applied once before the grapes sprout in spring, and topdressing is unnecessary, so the yield-increasing effect is better, the fertilizer utilization rate is improved, and labor and effort are saved.

    Product Description

    Controlled-release potassium nitrate and controlled-release potassium phosphate achieve the goals of saving labor, high efficiency, environmental protection, improving quality and increasing yield by "supplying fertilizer on demand". They are particularly suitable for high-value crops, carefully managed farmland, facility agriculture, and soil environments where nutrients are easily lost. They are important tools for modern efficient agriculture and sustainable planting.

    Specification

    Product

    Specification

    Total-N%

    NO3 %

    NH4 %

    UREA-N%

    P2 O5 %

    K2 O%

    PCNOP

    55% 12-0-43 3 Months

    12

    12

     

     

     

    43

    PCNOP

    55% 12-0-43 6 Months

    12

    12

     

     

     

    43

    PCMAP

    52% 10-42-0 3 Months

    10

     

    10

     

    42

     

    PCMAP

    51% 10-41-0 6 Months

    10

     

    10

     

    45

     

    Key Benefits

    Stable and lasting nutrient supply: Continuously and smoothly release nutrients to meet the long-term needs of crops, avoiding growth fluctuations and nutrient waste caused by the "sudden supply and sudden stop" of traditional fertilizers.

    Significantly reduce the number of fertilizations: One base application can meet most of the needs of the entire growing season or critical growth period, significantly saving labor costs (especially in large-scale planting or facility agriculture).

    Significantly improve nutrient utilization: Reduce nutrient losses caused by leaching (water wash off), volatilization (gaseous loss), and fixation (soil locking). The utilization rate is usually 20%-50% higher than that of traditional quick-acting fertilizers, which is more environmentally friendly (reducing groundwater pollution and greenhouse gas emissions).

    Main use venue

    High-value cash crops: fruit trees (citrus, grapes, apples, bananas, etc.), vegetables (eggplants, melons, leafy vegetables, etc.), flowers, lawns, nurseries. These crops are sensitive to nutrients, have high quality requirements, and labor costs account for a large proportion.

    When field crops pursue efficient management: corn, wheat, rice, cotton, etc., especially when pursuing high yield, high quality, reducing the number of topdressing or dealing with easily eroded soil.

    Facility agriculture (greenhouse, shed): The environment is closed, reducing the number of fertilization can reduce labor intensity and management difficulty, and more attention is paid to fertilizer efficiency under high investment.

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