Formula and preparation method of leaf surface blocking and controlling agent for inhibiting heavy metal pollution of crops

Abstract

The invention provides a formula and a preparation method of a leaf surface blocking and controlling agent for inhibiting heavy metal pollution of crops, and relates to the technical field of heavy metal pollution cultivated land treatment. The formula of the leaf surface resistance and control agent for inhibiting heavy metal pollution of crops comprises the following components in percentage by mass: 9-11% of a leaf surface integration material; 6%-8% of a foliar active material; 8%-10% of a leaf surface biostimulant material; 12%-14% of a leaf surface stabilizing material; 12%-14% of a leaf surface colloid thickening material; 2%-20% of a thickening material; 7%-13% of an ectotrophic strain inoculant, and the balance of water. The preparation method of the leaf surface blocking and controlling agent comprises the following steps: S1, manually or mechanically placing the constituent materials in functional material bins according to a set proportion; and S2, enabling materials in the functional material bins to enter the functional material single-hopper weighers to for weighing through functional material discharging hoppers and first safety valves connected with the functional material discharging hoppers. The designed leaf surface blocking and controlling agent can effectively block pollution of heavy metal to crops, can accelerate absorption of external nutrition by the crops, promotes photosynthesis of plants, and improves the quality of the crops.

Description

technical field [0001] The invention relates to the technical field of heavy metal-polluted cultivated land treatment, in particular to a formulation and preparation method of a foliar resistance control agent for suppressing heavy metal pollution of crops. Background technique [0002] Heavy metal elements can change the activity of soil microorganisms and affect the enzyme activity in the soil, thereby affecting the release and bioavailability of nutrients in the soil. In addition, heavy metal elements can also inhibit the respiration of plant roots, thus affecting the absorption of nutrients by crops. Heavy metal pollutants can also affect the photosynthesis, transpiration and other processes of crops, thereby affecting the growth and development of crops. Generally, crops have a certain tolerance to heavy metal substances. When the concentration exceeds the tolerance of the crops, the growth and development of the crops will be affected. Symptoms such as growth retarda...

AI Technical Summary

Problems solved by technology

Engineering measures are relatively classic heavy metal pollution control measures for cultivated land. They have the advantages of thoroughness and stability. However, the implementation of engineering measures requires a large amount of engineering and high investment costs, which will damage the soil structure and cause a decrease in the fertility of the cultivated land. stack or process

[0006] The existing publication number is CN107897207A, which is a foliar inhibitor and control agent for reducing heavy metal cadmium pollution in rice. The raw materials of the foliage inhibitor and control agent designed by the invention include soluble silicon, soluble zinc, surfactant, potassium humate And water, through foliar spraying, can effectively inhibit the transportation of heavy metal cadmium to rice and reduce the cadmium content in rice. But this will not only block heavy metals but also prevent crops from absorbing beneficial metal ions from outside, so that the nutrient intake of crops will not keep up

[0007] There is also a method for reducing the absorption of heavy metals on the foliage of crops with the publication number CN105794557A. The raw materials of the foliage resistance control agent disclosed in this invention are sodium chloride, calcium chloride, and water. However, not only the leaves of crops can absorb, but also the roots can absorb, so the effect is not good

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