Method for preparing relay-like ionic conversion controlled-release fertilizer
A technology of controlled-release fertilizer and ion conversion, which is applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of deterioration of soil physical properties, affecting the improvement of crop yield and quality, and low utilization rate of chemical fertilizers. Small environmental pollution, good effect
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Embodiment 1
[0026] A preparation method of a relay-type ion conversion controlled-release fertilizer, its raw material composition and weight percentage are respectively:
[0027] Polyacrylamide 5%;
[0028] Corn starch 10%;
[0029] Rosin 5%;
[0030] Liquid paraffin 5%;
[0031] Bentonite 5%;
[0032] Water 70%.
[0033] The steps of preparation method are:
[0034] (1) Add water and polypropylene amine to the reactor according to the weight ratio, heat the reactor to 90°C, heat for 40 minutes, and stir evenly;
[0035] (2) Cool the reaction kettle to 80°C, then add cornstarch according to the weight ratio, after adding, keep warm for 0.5 hours, and stir evenly;
[0036] (3) The temperature of the reaction kettle is raised to 95° C., and rosin is added in proportion by weight, kept for 50 minutes, and stirred evenly;
[0037] (4) Add liquid paraffin in the reaction kettle by weight ratio, stir evenly, keep stirring and temperature for 1 hour;
[0038] (5) Cool down the reaction ...
Embodiment 2
[0041] A preparation method of a relay-type ion conversion controlled-release fertilizer, its raw material composition and weight percentage are respectively:
[0042] Polyacrylamide 6%;
[0043] Corn starch 8%;
[0044] Rosin 4%;
[0045] Liquid paraffin 6%;
[0046] Bentonite 4%;
[0047] Water 72%.
[0048] The steps and content of its preparation method are the same as in Example 1.
Embodiment 3
[0050] A method for preparing a relay-type ion-conversion controlled-release fertilizer, the composition of the raw materials and their weight percentage ranges are respectively:
[0051] Polyacrylamide 4%;
[0052] Corn starch 12%;
[0053] Rosin 6%;
[0054] Liquid paraffin 4%;
[0055] Bentonite 6%;
[0056] Water 68%.
[0057] The steps and content of its preparation method are the same as in Example 1.
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