Slow release fertilizer special for cucumber by using biomass granular carbon as matrix and preparation method for slow release fertilizer
A technology of biomass granular carbon and biomass particles, which is applied in the direction of fertilizer mixture, application, fertilization device, etc., can solve the problems of forced highway closure, flight failure to land, environmental pollution, etc., and achieve the purpose of absorbing and maintaining nutrients and water Strong capacity, reduced fertilizer leaching loss, and easy access to raw materials
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[0078] Example 1: Preparation process of special slow-release fertilizer for cucumber with biomass granular carbon as 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 79.2% and 20.8%, 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 36.43%.
[0081] (2) Take monoammonium phosphate powder containing 11% nitrogen (N) and 46% available phosphorus (P2O5), 80-mesh biomass granular carbon particles and binder, according to 75.6%, 17.5% Mix with 6.9% ratio, carry out pressure granulation with KP-300 type organic fertilizer granulator, make nitrogen (N) amount 8.32%, contain available phosphorus (P2O5) amount and be 34.78% nitrogen-phosphorus ...
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