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Cadmium-reducing agent for corns

A technology for reducing cadmium and corn, applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of reducing soil cadmium bioavailability, negative impact on soil quality, difficult to popularize in large areas, etc. The effect of area promotion, low cost and convenient use

Inactive Publication Date: 2018-11-16
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical passivation method to control the accumulation of cadmium in corn grains by adjusting the soil Eh or pH through soil application of lime and other methods to reduce the bioavailability of cadmium in the soil, although the effect is quick and the effect is obvious, the dosage is too large and the cost is too high , and will have a negative impact on soil quality, making it difficult to promote on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: According to the formula requirements, 9.0kg calcium acetate, 9.5kg zinc chloride, 8.0kg carboxymethyl starch, 0.07kg basic magenta, and 73.43kg sepiolite were pulverized to more than 200 meshes with an ordinary pulverizer respectively , and then put each component into a V-shaped mixer, fully mix evenly, and then pulverize to more than 450 mesh with a superfine pulverizer, and quantitatively pack according to production standards and requirements to obtain 100kg of corn cadmium reducing agent.

Embodiment 2

[0025] Example 2: According to the formula requirements, 10.0kg calcium acetate, 10.0kg zinc chloride, 4.0kg carboxymethyl starch, 0.06kg basic magenta, and 75.94kg sepiolite were pulverized to more than 200 meshes with an ordinary pulverizer respectively , and then put each component into a V-shaped mixer, fully mix evenly, and then pulverize to more than 450 mesh with a superfine pulverizer, and quantitatively pack according to production standards and requirements to obtain 100kg of corn cadmium reducing agent.

Embodiment 3

[0026] Example 3: According to the formula requirements, 13.0kg calcium acetate, 9.5kg zinc chloride, 5.0kg carboxymethyl starch, 0.04kg basic magenta, and 72.46kg sepiolite were pulverized to more than 200 mesh respectively with an ordinary pulverizer , and then put each component into a V-shaped mixer, fully mix evenly, and then pulverize to more than 450 mesh with a superfine pulverizer, and quantitatively pack according to production standards and requirements to obtain 100kg of corn cadmium reducing agent.

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PUM

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Abstract

The invention relates to a cadmium-reducing agent for corns. The cadmium-reducing agent is prepared by crushing and mixing cadmium-reducing components, an adhesive, a pigment and an auxiliary agent, wherein the cadmium-reducing components are calcium acetate and zinc chloride, the adhesive is carboxymethyl starch, the pigment is basic malachite green, and the auxiliary agent is sepiolite. The cadmium-reducing agent provided by the invention is applicable to the leaf surface spraying of corns planted in soil polluted by cadmium, and reduces the cadmium content of corn kernels. According to theinvention, the cadmium-reducing agent is mixed with water according to the mass ratio of 1:(155-175) to prepare a suspension, leaf surface spraying is respectively carried out once in the tasseling stage, the silking stage and the early mature stage of the corns, and the cadmium content of the corn kernels is reduced by 40.3-60.8%. The cadmium-reducing agent provided by the invention does not influence normal growth of the corns, and has no adverse effect on the soil environment quality. The cadmium-reducing agent has the advantages of simple and convenient production, low cost and convenientuse, and can effectively reduce the cadmium content of corn kernels, and the economic benefit, the social benefit and the ecological benefit are significant.

Description

technical field [0001] The invention relates to a corn cadmium-reducing agent used for foliar spraying treatment of corn planted in cadmium-contaminated soil and reducing the cadmium content of corn grains, and belongs to the fields of heavy metal pollution control technology in cultivated land and corn cultivation technology. Specifically, it is a cadmium-reducing agent for corn, which is prepared by crushing and mixing cadmium-reducing ingredients, binders, pigments and additives. Cadmium content. Background technique [0002] Cadmium is a toxic metal element. After entering the human body, it can gradually accumulate in the liver, kidney, bone, lung and other systems, causing damage to these systems. Symptoms of chronic cadmium poisoning include loss of sense of smell, fatigue, and decreased hemoglobin. Severe poisoning can lead to "bone pain disease" and even death due to complications. Among the 12 hazardous substances proposed by the United Nations Environment Progra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01N37/02A01N25/24A01N25/12A01P21/00
CPCA01N25/12A01N25/24A01N37/02A01N59/16
Inventor 熊远福张文萍李瑞莲熊海蓉文祝友熊文洋聂晓燕
Owner HUNAN AGRICULTURAL UNIV
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