Magnetic controlled-release fertilizer capable of improving soil water release and fertilizer maintenance capacity, and preparation method thereof
A slow-release fertilizer and water-release technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of reduced utilization rate of chemical fertilizers, environmental pollution, loss of effectiveness, etc., to improve absorption capacity, enhance cell vitality, and promote The effect of growth and development
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[0019] Specific implementation plan
[0020] The present invention will be further described in detail below in conjunction with the following specific embodiments:
[0021] Weigh the following parts by weight (kg) of raw materials: weathered coal 85, magnesium sulfate 14, potassium chloride 21, tricalcium phosphate 18, fly ash 90, rapeseed cake 240, hull ash 100, pyrite ash 80. Tapioca starch 37, calcium acetate 7, compound biological inoculum 10, appropriate amount of water;
[0022] The compound biological inoculum includes sulfate reducing bacteria, isooxferric reducing bacteria and Bacillus subtilis, and the ratio is 1:1:2.
[0023] The specific steps for the preparation of the fertilizer are as follows:
[0024] (1) Put the fly ash in a high-temperature furnace, calcine it at 800°C for 20 minutes, take it out and cool it, put the pyrite ash into a high-temperature furnace, and calcine it at 550°C for 30 minutes, take it out, and cool it down. Mix the two kinds of calcined ash an...
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