Efficient slow-release bulk-blending (BB) fertilizer and preparation and application method thereof

Efficient slow-release bulk-blending (BB) fertilizer and preparation and application method thereof

  • CN 102,557,795 A
  • Filed: 12/30/2010
  • Published: 07/11/2012
  • Est. Priority Date: 12/30/2010
  • Status: Active Application
First Claim
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1. a high-efficiency sustained-release blending BB fertilizer comprises nitrogen, phosphorus, potassium, it is characterized in that:

  • high-efficiency sustained-release blending BB fertilizer is made up of the basic nitrogenous fertilizer of urine, phosphate fertilizer, potash fertilizer, required middle amount nutritive element and the required micronutrient element of plant of plant;

    Urinating basic nitrogenous fertilizer is common granular urea and slowly-releasing granular urea, and moderate-element is calcium and magnesium, and trace element is iron, copper, manganese, zinc, boron and molybdenum;

    To urinate basic nitrogenous fertilizer urea pure nitrogen level, to urinate basic nitrogenous fertilizer is that pure nitrogen level 40-46.3%, phosphate fertilizer amount are the 30-90% of pure nitrogen level;

    The potash fertilizer amount is the 45-100% of pure nitrogen level;

    The moderate-element amount is the calcium of pure nitrogen level 10-45% and the magnesium of 5-35%;

    The trace element amount is for accounting for the iron of pure nitrogen level 0.1-5%, the copper of 0.1-3%, the manganese of 0.5-3%, the zinc of 0.1-2%, the boron of 0.05-2%, the molybdenum of 0.01-2%;

    The add-on of wherein common granular urea and slowly-releasing granular urea is the common granular urea and the slowly-releasing granular urea that accounts for urea pure nitrogen level 90-100% that accounts for urea pure nitrogen level 0-10%.

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