06-06-2023 дата публикации
Номер: CN116217293A
Принадлежит:
The invention provides a preparation method of a biochar-based fertilizer. The preparation method comprises the following steps: S1, weighing the following raw materials in parts by weight: 65 to 95 parts of ammonium sulfate, 160 to 195 parts of monoammonium phosphate, 70 to 130 parts of dry ammonia, 280 to 320 parts of urea, 120 to 140 parts of potassium chloride, 15 to 20 parts of boric acid, 15 to 20 parts of magnesium sulfate monohydrate, 46.7 to 51.7 parts of bentonite, 8 to 10 parts of beneficial bacteria, 120 to 125 parts of biochar and 0.2 to 0.3 part of alginate oligosaccharide; s2, adding monoammonium phosphate, potassium chloride, ammonium sulfate, dry ammonia and potassium chloride into a mixing tank, adding steam into the materials at 70-80 DEG C, and uniformly mixing; s3, guiding the material obtained in the step S2, the charcoal, the boric acid, the magnesium sulfate monohydrate, the alginate oligosaccharide and the bentonite into a mixing tank of a granulator for mixing, ...
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