Method for improving soil acidity and alkalinity and increasing soil trace element content
A technology for improving soil and trace elements, which is applied in the direction of fertilizer mixture, fertilization device, application, etc., can solve the problems that clay soil and raw soil cannot be improved at the same time, and cannot provide various trace elements, so as to improve the degree of fertility and increase soil trace elements The effect of content
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Embodiment 1
[0016] A method for improving soil pH and increasing the content of trace elements in soil. The waste fly ash discharged from thermal power plants or coal-fired production workshops and the steel slag discharged in the steelmaking process are dried, pulverized and stirred to make a soil improver. When stirring, put the fly ash particles and steel slag into the soil to be improved after fully stirring, and mix with the soil evenly; when mixing with the improved soil, the depth of the soil is 10cm.
[0017] When drying, reduce the moisture content of fly ash and steel slag to 30%.
[0018] When crushing, the fly ash is crushed to a particle size of 30 mesh.
Embodiment 2
[0020] A method for improving soil pH and increasing the content of trace elements in soil. The soil improving agent is prepared by drying, pulverizing and stirring waste fly ash discharged from thermal power plants or coal-fired production workshops and steel slag discharged in the process of steelmaking. When stirring, put the fly ash particles and steel slag into the soil to be improved after fully stirring, and mix with the soil evenly; when mixing with the improved soil, the depth of soil turning is 15cm.
[0021] When drying, reduce the moisture content of fly ash and steel slag to 15%.
[0022] When crushing, the fly ash is crushed to a particle size of 45 mesh.
Embodiment 3
[0024] A method for improving soil pH and increasing the content of trace elements in soil. The soil improving agent is prepared by drying, pulverizing and stirring waste fly ash discharged from thermal power plants or coal-fired production workshops and steel slag discharged in the process of steelmaking. When stirring, put the fly ash particles and steel slag into the soil to be improved after fully stirring, and mix with the soil evenly; when mixing with the improved soil, the depth of the soil is 20cm.
[0025] When drying, reduce the moisture content of fly ash and steel slag to 20%.
[0026] When crushing, the fly ash is crushed to a particle size of 50 mesh.
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