Special controlled-release fertilizer for strawberry taking biomass granulated carbon as matrix and preparation method thereof
A technology of biomass granular carbon and biomass particles, applied in fertilization methods, fertilizer mixtures, applications, etc., can solve problems such as high yield, high efficiency, and high quality of strawberries, forced closure of highways, and not too much fertilizer at a time. , to achieve strong ability to absorb and maintain nutrients and water, reduce fertilizer leaching loss, and good slow-release effect
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[0080] Example 1: Preparation process of special slow-release fertilizer for strawberry with biomass granular carbon as matrix
[0081] Follow the steps below to mix in weight ratio or weight percentage:
[0082] (1) Take 46% nitrogen (N) large granular urea, 80 mesh biomass granular carbon particles, mix at the ratio of 68.2%, 31.8%, and use a disc granulator (fertilizer with heating function). Commonly used machinery in the preparation process) for coating to produce elemental slow-release nitrogen fertilizer with a nitrogen (N) content of 31.37%.
[0083] (2) Take 21.2% nitrogen (N) ammonium sulfate, 80 mesh biomass granular charcoal and binder, mix them in the proportions of 69.2%, 23.5% and 7.3%, and use KP-300 organic fertilizer to granulate The machine performs pressure granulation to produce a slow-release nitrogen fertilizer with a nitrogen (N) content of 14.67%.
[0084] (3) Take diammonium phosphate powder with nitrogen (N) content of 18% and effective phosphorus (P2...
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