Special slow-release fertilizer taking biomass granular charcoal as matrix for hot pepper and preparation method for same
A technology of biomass granular carbon and biomass particles, which is applied in the direction of fertilization methods, fertilizer mixtures, applications, etc., can solve the problems of increasing labor intensity and labor costs of farmers, weak pepper root regeneration ability, forced highway closures, etc. Achieve the effect of strong ability to absorb and retain nutrients and water, reduce fertilizer leaching loss, and increase soil fertility
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[0078] Embodiment 1: The preparation process of the special slow-release fertilizer for capsicum with biomass granular carbon as the substrate
[0079] Follow the steps below to mix by weight ratio or weight percentage:
[0080] (1) Take large-grain urea with a nitrogen (N) content of 46%, and 80-mesh biomass granular carbon particles, mix them in a ratio of 64.4% and 35.6%, and use a disc granulator with a heating function (fertilizer Commonly used machinery in the preparation process) for coating to make an elemental slow-release nitrogen fertilizer with a nitrogen (N) content of 29.62%.
[0081] (2) Take diammonium phosphate powder with 18% nitrogen (N) content and 46% available phosphorus (P2O5) content, 80 mesh biomass granular carbon particles and binder, according to 70.7%, 22.8% Mix with 6.5% ratio, carry out pressure granulation with KP-300 type organic fertilizer granulator, make nitrogen (N) amount 12.73%, contain available phosphorus (P2O5) amount and be 32.5...
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