Wheat grain zinc and selenium synchronous enrichment method

Abstract

The invention discloses a wheat grain zinc and selenium synchronous enrichment method. Winter wheat serves as a research object and is sprayed 7 days after blooming, the zinc and selenium enrichment effect of wheat grains after zinc and selenium are cooperatively sprayed is discussed, the purpose is to increase the selenium content of the wheat grains while the zinc content of the grains is not affected, and a certain theoretical basis can be provided for practically and effectively achieving simultaneous zinc and selenium enrichment of the wheat. The method has the following conclusions that(1) the yield of the wheat is not influenced by zinc and selenium matched spraying; (2) the zinc content of the grains does not reach a zinc-rich standard without selenium spraying processing, the selenium content of the grains does not reach a selenium-rich standard without zinc spraying processing, and the zinc and selenium in the wheat grains achieve an enrichment effect after zinc and the selenium are cooperatively sprayed, and (3) the phytic acid / zinc molar ratio can be remarkably reduced after the zinc and the selenium are cooperatively sprayed, the zinc effectiveness of grains is improved, and meanwhile, the biological effectiveness of the selenium is not influenced. Therefore, under the condition of a potential zinc deficiency and low selenium soil, zinc and selenium can be cooperatively sprayed on leaf surfaces for zinc and selenium synchronous biological enhancement of the wheat grains.

Description

technical field

[0001] The invention belongs to the technical field of agriculture and relates to a method for synchronously enriching two elements of wheat grain, zinc and selenium. Background technique

[0002] Zinc and selenium are essential trace elements for the human body. Zinc deficiency in the human body will reduce metabolic function and resistance, cause heart and respiratory diseases, increase mortality and disease rates, and selenium deficiency will affect the human immune system, stimulate the toxicity of microvirus B19 (HPVB19), cause Kashin-Beck disease, Mountain disease, etc. (Jaksch et al.1972; Li Jiyun 1979). The human body cannot synthesize zinc and selenium by itself, so it is particularly important to increase the intake of these two elements in the diet. As the staple food of half of the population in China, wheat can provide about 20% of the zinc source (Ma et al.2008), and it is also one of the staple food crops with the strongest selenium enrichmen...

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