Novel sustained-release long-acting compound fertilizer and preparation method thereof
A fertilizer and a long-acting technology, applied in the field of stable fertilizer and its preparation, can solve the problems of restricting the production of high-efficiency compound fertilizers to low-carbon and high-efficiency agricultural development, the utilization rate of nitrogen and phosphorus fertilizers being less than 10%, and the control effect being greatly affected, etc. The effect of regulating nutrient transformation is outstanding, the effect of increasing production is outstanding, and the effect of application is good.
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Embodiment 1
[0023] A novel slow-release long-acting compound fertilizer, in parts by weight, including 25 parts of nitrogen, phosphorus (P 2 o 5 ) 10 parts, potassium (K 2 O) 10 parts, the total nutrient content is 45%. The nitrification inhibitor is dicyandiamide, the dosage is 3% of the pure nitrogen dosage, the borax dosage is 5% of the pure nitrogen dosage, and the potassium humate dosage is 5% of the fertilizer dosage.
[0024] Nitrogen in the compound fertilizer is provided by urea and monoammonium phosphate, phosphorus is provided by monoammonium phosphate and superphosphate, and potassium is provided by potassium chloride. The weight of each raw material used is as follows: 497.4kg urea, 176.9kg monoammonium phosphate, 50kg superphosphate (containing 16% phosphorus), 166.7kg potassium chloride, 7.5kg dicyandiamide, 12.5kg borax, 50kg potassium humate, 40kg concave-convex stick powder.
[0025] Dicyandiamide, borax and potassium humate are fully mixed according to the requ...
Embodiment 2
[0027] A novel slow-release long-acting compound) fertilizer, calculated in parts by weight per ton, including 26 parts of nitrogen, phosphorus (P 2 o 5 ) 10 parts, potassium (K 2 O) 12 parts, the total nutrient content is 48%. The nitrification inhibitor is 3,5-dimethylpyrazole, the dosage is 2% of the pure nitrogen dosage, the boric acid dosage is 5% of the pure nitrogen dosage, and the ammonium humate dosage is 6% of the fertilizer dosage.
[0028] The nitrogen in the compound fertilizer is partly provided by urea, partly by monoammonium phosphate, phosphorus by monoammonium phosphate, and potassium by potassium chloride. The weights of the raw materials used are as follows: 515.0kg urea, 192.3kg monoammonium phosphate, 200kg potassium chloride, 5.2kg 3,5-dimethylpyrazole, 13kg boric acid, 60kg ammonium humate, 15kg bentonite.
[0029] Mix 3,5-dimethylpyrazole, boric acid and ammonium humate evenly according to the required amount, and then add them to the batching syste...
Embodiment 3
[0031] A novel slow-release long-acting compound fertilizer, calculated in parts by weight in one ton, including 28 parts of nitrogen, phosphorus (P 2 o 5 ) 10 parts, potassium (K 2 O) 10 parts, the total nutrient content is 48%. The nitrification inhibitor is 3,4-dimethylpyrazole phosphate, the dosage is 1.5% of the pure nitrogen dosage, the dosage of borax is 3% of the pure nitrogen dosage, and the dosage of calcium humate is 3% of the fertilizer dosage.
[0032] Nitrogen in the compound fertilizer is provided by urea and monoammonium phosphate, phosphorus is provided by monoammonium phosphate, and potassium is provided by potassium sulfate. The weights of the raw materials used are as follows: 558.5kg urea, 192.3kg monoammonium phosphate, 166.7kg potassium chloride, 4.2kg 3,4-dimethylpyrazole phosphate, 8.4kg borax, 30kg calcium humate, 40kg bentonite.
[0033] After mixing 3,4-dimethylpyrazole phosphate, borax and calcium humate evenly according to the required amount, ...
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