Method for reducing arsenic content in tobacco leaves

Abstract

The invention belongs to the technical field of tobacco planting, and particularly relates to a method for effectively reducing the content of heavy metal arsenic in tobacco leaves. The method utilizes the technical principle that molybdenum can antagonize arsenic, and antagonizes the absorption and utilization of the arsenic by the tobaccos by applying trace element molybdenum during tobacco planting. Specifically, after tobacco seeds are normally sown and nursed, and before transplanting of tobacco seedlings and ridging, soluble molybdenum salt is uniformly sprayed (or directly dissolved inirrigation water) to cultivated soil; cultivation and management can be carried out according to conventional field management measures in the later stage; the use amount of the soluble molybdenum salt is specifically 700-1100 mg / L, and the amount applied in the soil is 400-600 L / mu, that is, 0.28-0.66 kg / mu. The method for reducing the arsenic content in the tobacco leaves has the advantages of being low in cost, simple and easy and practical and reliable, can fundamentally reduce the arsenic content in the tobacco leaves, and can lay a foundation for the stability and improvement of tobaccoleaf quality.

Description

Technical field [0001] The invention belongs to the technical field of tobacco planting, and specifically relates to a method for effectively reducing the content of heavy metal arsenic in tobacco leaves. Background technique [0002] In environmental governance, heavy metals refer to a class of chemical elements that are more harmful to the human body. In addition to the general metal elements such as lead, nickel, chromium, and cadmium, it also includes the metal-like element arsenic. The main reason is that arsenic enters The pathological and toxic properties caused in organisms are very similar to the properties of heavy metals, so they are usually studied as one of the heavy metal elements. [0003] In recent years, with the emphasis on heavy metal pollution research, a lot of research has been done on the behavior of heavy metals in tobacco and the control of heavy metals abroad. Existing studies believe that during tobacco smoking, heavy metals adsorbed in tobacco can enter...

AI Technical Summary

Problems solved by technology

[0006] As far as tobacco planting is concerned, due to the strong tolerance of tobacco, some tobacco is planted in arsenic-contaminated soil, which leads to high arsenic content in these tobacco plants, reduces the quality of tobacco, and also contributes to the health of tobacco smokers. poses a potential hazard

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