Method for regulating heavy metal cadmium accumulation of rice

A technology for heavy metals and rice, applied in the fields of rice cultivation, horticultural methods, botanical equipment and methods, etc., can solve problems such as harm to human physical and mental health, and achieve the effects of reducing operation difficulty, promoting cadmium accumulation, and inhibiting cadmium accumulation.

Inactive Publication Date: 2017-09-15
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, heavy metal pollution in rice is also different from other plants. The cadmium accumulated in rice plants can enter the human body through the food chain in the ecology, thereby endangering human physical and mental health. It has strong hidden and dangerous properties

Method used

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  • Method for regulating heavy metal cadmium accumulation of rice
  • Method for regulating heavy metal cadmium accumulation of rice
  • Method for regulating heavy metal cadmium accumulation of rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] First, 24-epibrassinolide was prepared into an aqueous solution with a concentration of 150 μg / L with distilled water, and then in the process of rice planting in cadmium-contaminated soil, the above-mentioned 24-epibrassinolide solution was used in rice seedling stage and tillering stage 1. Spraying the rice leaves continuously on the 1st to 14th days after the heading stage and flowering stage, the spraying amount of 24-epibrassinolide solution in the spraying treatment is 330L / day per mu. The whole planting process of rice is carried out by conventional field management.

Embodiment 2

[0043] Firstly, 24-epibrassinolide was prepared into an aqueous solution with a concentration of 180 μg / L with distilled water, and then in the process of rice planting in cadmium-contaminated soil, the above-mentioned 24-epibrassinolide solution was used at the rice seedling stage and tillering stage 1. Spraying the rice leaves continuously on the 1st to 14th days after the heading stage and flowering stage, the spraying amount of 24-epibrassinolide solution in the spraying treatment is 330L / day per mu. The whole planting process of rice is carried out by conventional field management.

Embodiment 3

[0045] First, the 24-epibrassinolide solution was prepared into an aqueous solution with a concentration of 220 μg / L with distilled water, and then in the process of rice planting in cadmium-contaminated soil, the above-mentioned 24-epibrassinolide solution was used at the rice seedling stage and tillering stage 1. Spraying the rice leaves continuously on the 1st to 14th days after the heading stage and flowering stage, the spraying amount of 24-epibrassinolide solution in the spraying treatment is 330L / day per mu. The whole planting process of rice is carried out by conventional field management.

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Abstract

The invention provides a method for regulating the heavy metal cadmium accumulation of rice and relates to the technical field of rice planting. A 24-Epibrassinolide solution with the concentration of 150-300 micrograms per liter is prepared from 24-Epibrassinolide and water, and then in the rice planting process, the 24-Epibrassinolide solution is sprayed on leaves of the rice obtained through the cadmium stress cultivation. Through the research, the method for regulating the heavy metal cadmium accumulation of the rice can be provided, and the method has a very beneficial practical significance on both safe production of the rice and the remediation of cadmium contaminated soil. Meanwhile, the rice serves as a conventional crop, and a conventional agricultural method is adopted in the field management, so that the operating difficulty of the further application of the method is reduced.

Description

technical field [0001] The invention relates to the technical field of rice planting, in particular to a method for regulating the accumulation of heavy metal cadmium in rice. Background technique [0002] Rice is an indispensable crop for our human survival, and it is also one of the main foods we eat. Therefore, the production safety and food standards of rice are closely related to us. It is reported that a large amount of cultivated land in my country is polluted by heavy metal cadmium at this stage, involving 11 provinces and cities across the country, causing a large amount of food production reduction and pollution, and the loss is more than 20 billion yuan. It can be said that the scope is large and the loss is huge. At the same time, heavy metal pollution in rice is also different from other plants. The cadmium accumulated in rice plants can enter the human body through the food chain in the ecology, thereby endangering human physical and mental health. It has stron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G16/00A01G22/22
CPCA01G7/06
Inventor 朱诚王飞娟陈志祥丁艳菲孙骏威贺希格都楞江琼易可可王俊敏
Owner CHINA JILIANG UNIV
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