Wheat special fertilizer and preparation method thereof
A technology of special fertilizer and wheat, which is applied in the field of special fertilizer for wheat and its manufacture, can solve the problems of environmental threat, decrease of fertilizer utilization rate, increase of cost, etc., and achieve the effects of low operating cost, improvement of fertilizer utilization rate and promotion of corn growth
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Embodiment 1
[0036] A special fertilizer for wheat is prepared from the following raw materials in parts by weight: 100 parts of urea, 25 parts of ammonium sulfate, 25 parts of superphosphate, 20 parts of potassium dihydrogen phosphate, 15 parts of potassium sulfate, 7 parts of zinc sulfate, molybdenum 7 parts of ammonium acid, 13 parts of trace elements, 1 part of dispersion accelerator, 70 parts of fermented fertilizer, 35 parts of bentonite, 3 parts of porous magnetic chitosan microspheres;
[0037] The dispersion accelerator is prepared from sodium hexametaphosphate, sodium methacrylate and polyethylene glycol monomethyl ether methacrylate in a weight ratio of 1:1:1;
[0038] Described porous magnetic chitosan microsphere is made by following steps:
[0039] 1) Mix ammonia water, nano ferric oxide, carboxymethyl chitosan and Tween-20 evenly, seal and soak for 3 hours, heat in a water bath at 53°C and stir until carboxymethyl chitosan is completely dissolved, and stand still until bubbl...
Embodiment 2
[0059] A special fertilizer for wheat is prepared from the following raw materials in parts by weight: 100 parts of urea, 30 parts of ammonium sulfate, 20 parts of superphosphate, 15 parts of potassium dihydrogen phosphate, 20 parts of potassium sulfate, 5 parts of zinc sulfate, molybdenum 8 parts of ammonium acid, 10 parts of trace elements, 2 parts of dispersion accelerator, 60 parts of fermented fertilizer, 45 parts of bentonite, 2 parts of porous magnetic chitosan microspheres;
[0060] The dispersion accelerator is prepared from sodium hexametaphosphate, sodium methacrylate and polyethylene glycol monomethyl ether methacrylate in a weight ratio of 1:0.8:1.5;
[0061] Described porous magnetic chitosan microsphere is made by following steps:
[0062] 1) Mix ammonia water, nano ferric oxide, carboxymethyl chitosan and Tween-20 evenly, seal and soak for 2 hours, heat in a water bath at 50°C and stir until carboxymethyl chitosan is completely dissolved, and stand still until ...
Embodiment 3
[0070] A special fertilizer for wheat is prepared from the following raw materials in parts by weight: 100 parts of urea, 20 parts of ammonium sulfate, 30 parts of superphosphate, 25 parts of potassium dihydrogen phosphate, 10 parts of potassium sulfate, 9 parts of zinc sulfate, molybdenum 6 parts of ammonium acid, 15 parts of trace elements, 2 parts of dispersion accelerator, 80 parts of fermented fertilizer, 25 parts of bentonite, 2 parts of porous magnetic chitosan microspheres;
[0071] The dispersion accelerator is prepared from sodium hexametaphosphate, sodium methacrylate and polyethylene glycol monomethyl ether methacrylate in a weight ratio of 1:1.2:0.5;
[0072] Described porous magnetic chitosan microsphere is made by following steps:
[0073] 1) Mix ammonia water, nano ferric oxide, carboxymethyl chitosan and Tween-20 evenly, seal and soak for 4 hours, heat and stir in a water bath at 55°C until carboxymethyl chitosan is completely dissolved, and stand still until ...
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