A kind of composite multifunctional soil remediation agent and preparation method thereof

Abstract

The invention discloses a compound multifunctional soil remediation agent. The compound multifunctional soil remediation agent is prepared from 40-60% of humic acid, 10-30% of zeolite, 10-30% of Chinese medical stone, 1-5% of opal, 3-10% of chitosan, 3-10% of soybean meal, 0.5-5% of bone meal, 0.5-5% of fish meal, 0.1-0.5% of aspartic acid, 0.5-2.0% of potatoes, 0.2-0.5% of brown sugar, 0.005-0.01% of agar, 0.5-3.0% of Shimamoto ferment bacteria, 0.5-2.0% of Paecilomyces lilacinus and 0.5-2.0% of avermectin. The preparation method comprises mixing mixed calcined powder (comprising zeolite, Chinese medical stone and opal), humic acid, soybean meal, bone meal, fish meal, aspartic acid, potatoes, brown sugar and agar to obtain a uniform mixture, crushing the mixture, putting the powder into a fermenting tank, adding water into the fermenting tank to adjust humidity, adding other raw materials into the fermenting tank and carrying out fermentation for 20-40 days. The compound multifunctional soil remediation agent has obvious effects of adsorbing, decomposing and passivating heavy metals, stimulating crop growth, improving soil, improving soil fertility, adjusting pH, resisting plant diseases and insect pests and resisting continuous cropping.

Description

technical field [0001] The invention relates to a composite multifunctional soil repair agent and a preparation method thereof. Background technique [0002] At present, due to the large and unreasonable use of chemical fertilizers and pesticides, most of the cultivated land in my country has a series of soil problems such as acidification, secondary salinization, excessive nitrite and heavy metals, etc. Security brings a lot of pressure. In addition, different degrees of soil compaction, soil fertility decline, structural deterioration, and increased pests and diseases have also occurred, making the investment in facility agriculture more and more, the amount of chemical fertilizers and pesticides is increasing, and the input-output ratio is becoming more and more unreasonable. , becoming more and more uncoordinated, and at the same time, the production situation of "the fruit is not sweet and the melon is not fragrant" has become more apparent. [0003] Weifang vegetables...

AI Technical Summary

Problems solved by technology

[0002] At present, due to the large and unreasonable use of chemical fertilizers and pesticides, most of the cultivated land in my country has a series of soil problems such as acidification, secondary salinization, excessive nitrite and heavy metals, etc. Security brings a lot of pressure

In addition, different degrees of soil compaction, soil fertility decline, structural deterioration, and increase in pests and diseases have also occurred, making the investment in facility agriculture more and more, the amount of chemical fertilizers and pesticides is increasing, and the input-output ratio is becoming more and more unreasonable. , becoming more and more uncoordinated, and at the same time, the production status of "the fruit is not sweet and the melon is not fragrant" has become more apparent

[0003] Weifang vegetables are representative of Chinese agriculture. In terms of ginger production, the yield and quality have been declining due to ginger blast and root-knot nematodes. Therefore, farmers have to use chloropicrin, methyl bromide, lime nitrogen, metabam These chemical soil treatment agents such as cotton long, the cost of soil treatment (disinfection, sterilization and control of root-knot nematode) is as high as 1500-3000 yuan per mu per year, but the effect is not ideal, not only time-consuming, labor-intensive, and laborious, but also pesticides. There are also varying degrees of destructive effects on soil and personal safety