Ecological nitrogen fertilizer and preparation method thereof
A nitrogen fertilizer and ecological technology, applied in nitrogen fertilizer, organic fertilizer, fertilization device and other directions, can solve the problem of low utilization rate of urea, improve the cultivation soil, simplify the granulation process, and improve the effect of absorbing nutrients
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[0048] Get 550kg of urea, 400kg of peat (water content 30%), 150kg of additives, 50kg of medium and micro fertilizers, 3kg of chitin, and 0.1kg of root-promoting agent.
[0049] (1) Activation treatment of peat and weathered coal
[0050] Add 15% activator to peat and weathered coal and let it stand for 3 days.
[0051] (2), medium and trace element chelation reaction
[0052] The inorganic salts of medium and trace elements are reacted with humic acid to form chelates of medium and trace elements.
[0053] (3), mixing, granulation
[0054] Add urea into the mixer, add chitin solution and trace element chelate in humic acid, wrap small granules of urea and send them to granulation tray for granulation and throwing garden treatment.
[0055] (4), drying, cooling
[0056] The ecological nitrogen fertilizer that has been pelleted is sent to the dryer by the belt conveyor, and the air inlet temperature is adjusted to 110 degrees, and the outlet air temperature is 45 degrees, f...
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