Application of 24-epicastasterone in reduction of cadmium accumulation in paddy rice body

Abstract

The invention provides application of 24-epicastasterone in reduction of cadmium accumulation in a paddy rice body, and relates to the technical field of paddy rice planting. In a paddy rice planting process of cadmium-polluted soil, foliage of paddy rice is sprayed by using 24-epicastasterone solutions with the concentration of 250 to 350 microgram / L. After the foliage of paddy rice is sprayed by using the 24-epicastasterone solutions with the concentration of 250 to 350 microgram / L, the cadmium content of brown rice in the paddy rice can be obviously reduced so as to guarantee that the cadmium content of the brown rice planted in the cadmium-polluted soil is reduced to be less than 0.15 mg / kg, and is less than 0.2 mg / kg of the maximum limitation standard of the convent of heavy metal cadmium in the brown rice prescribed in China, and therefore, the paddy rice belongs to edible paddy rice. The application method has the advantages that the cost is low and a special instrument in an application process is not needed; meanwhile, field management in the paddy rice planting process is a conventional agricultural method, so that the application operation difficulty is reduced.

Description

technical field [0001] The invention relates to the technical field of rice planting, in particular to the application of 24-epibrassinolide in reducing cadmium accumulation in rice. Background technique [0002] With the continuous development of my country's economy, industrial and agricultural pollution to the environment is becoming more and more serious, and the heavy metal pollution of water bodies and soils is also increasingly affecting the daily production and living problems of the people of our country. In particular, the problem of heavy metal polluted soil has increasingly become a major threat to the local environment. The area and degree of pollution are on the rise, bringing serious risks and hazards to my country's agricultural production safety and people's health. The safety of food and crop products has been recognized by our government and people increasingly important. [0003] As China's most important food source, rice is also the most important food ...

AI Technical Summary

Problems solved by technology

[0004] Existing methods for reducing cadmium accumulation in rice in cadmium-contaminated soil include guest soil method, leaching method, solidification method, and microbial remediation. The need for fallow and crop rotation for a long period of time is not suitable for our country's national conditions with more people and less arable land

[0005] Therefore, it is imminent to study the cadmium control technology in the rice planting process, and develop a method that can significantly reduce the cadmium content in the rice body by applying it during the rice planting process. , complex operation, special equipment and long cycle, which have very necessary and urgent social and economic significance

Images