Rice soil conditioner for reducing cadmium and increasing yield and preparation method thereof

Abstract

The invention provides a rice soil conditioner capable of reducing cadmium and increasing yield and a preparation method of the rice soil conditioner. The invention rice soil conditioner comprises 11 to 18 parts of sheep manure, 8 to 12 parts of sawdust, 14 to 25 parts of biomass charcoal, 8 to 12 parts of oil shale residue, 1 to 8 parts of wood vinegar, 8 to 20 parts of shell powder, 8 to 20 parts of sepiolite, 4 to 11 parts of white clay and 0.1 to 0.5 part of a microbial agent. The rice soil conditioner for reducing cadmium and improving yield and preparation method are reasonable in design. After a multi-stage electric push rod of a mixing device extends, the multi-stage electric push rod moves a movable disc upwards, and various raw materials are extruded between the movable disc and a fixed disc. At moment, due to increase of pressure, gaps between raw materials are reduced, and therefore fluidity of oil shale slag with large density is reduced due to influence of gravity. The oil shale residues are prevented from gathering to bottom in stirring and mixing process, so that mixing uniformity of raw materials can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of selenium-enriched tea planting, and in particular relates to a rice soil conditioner for reducing cadmium and improving yield and a preparation method thereof. Background technique [0002] With the acceleration of industrialization and urbanization, a large amount of heavy metals have entered the soil and biosphere that humans rely on for survival and development, resulting in a large amount of agricultural land being polluted by heavy metals, which not only affects the quality and output of agricultural products, but also heavy metals. It can be passed through the food chain and endanger human health. Due to the high cost of traditional soil remediation methods (such as: soil replacement method, heat treatment, electric treatment, leaching and washing, etc.), it is not conducive to large-scale promotion and application in production, so there is no significant reduction in soil lead and cadmium pollutio...

AI Technical Summary

Problems solved by technology

Crop stalks are piled up or burned on the spot, which seriously pollutes the environment; a large amount of livestock and poultry manure is directly stored in the open air without any treatment, which seriously damages the living environment of rural and urban residents

The resource utilization of agricultural waste can not only reduce environmental pollution, but the rich organic matter in it can be fully returned to the field, which can reduce the use of chemical fertilizers, improve soil, and promote sustainable agricultural development. In the process of preparing rice soil conditioner , it is necessary to mix various materials. During the mixing process, with the movement of the materials, the dense materials will gradually deposit to the bottom, so that the material distribution of the rice soil conditioner is uneven. However, the existing preparation method Can not solve above-mentioned problem when mixing, for this reason, the present invention proposes a kind of paddy soil conditioner and preparation method of reducing cadmium and raising yield

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