• 耕作栽培·生理生化 •

### 我国主要麦区小麦籽粒微量元素含量及营养评价

1. 1西北农林科技大学资源环境学院 / 农业农村部西北植物营养与农业环境重点实验室, 陕西杨凌 712100
2西北农林科技大学 / 旱区作物逆境生物学国家重点实验室, 陕西杨凌 712100
3山西农业大学农学院, 山西太谷 030801
4伊犁州农业科学研究所, 新疆伊宁 835000
• 收稿日期:2021-11-12 接受日期:2022-02-25 出版日期:2022-11-12 网络出版日期:2022-03-16
• 通讯作者: 王朝辉
• 作者简介:第一作者联系方式: E-mail: 1447993659@qq.com
• 基金资助:
本研究由财政部和农业农村部国家现代农业产业技术体系建设专项(CARS-3);国家重点研发计划项目(2018YFD0200400)

### Evaluation on concentration and nutrition of micro-elements in wheat grains in major wheat production regions of China

CHU Hong-Xin1(), MU Wen-Yan1, DANG Hai-Yan1, WANG Tao1, SUN Rui-Qing1, HOU Sai-Bin1, HUANG Ting-Miao1,3, HUANG Qian-Nan1,4, SHI Mei1, WANG Zhao-Hui1,2,*()

1. 1College of Natural Resources and Environment, Northwest A&F University / Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
2State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling 712100, Shaanxi, China
3College of Agriculture, Shanxi Agricultural University, Taigu 030801, Shanxi, China
4Yili Institute of Agricultural Science, Yining 835000, Xinjiang, China
• Received:2021-11-12 Accepted:2022-02-25 Published:2022-11-12 Published online:2022-03-16
• Contact: WANG Zhao-Hui
• Supported by:
The China Agriculture Research System of MOF and MARA(CARS-3);The National Key Research and Development Program of China(2018YFD0200400)

Abstract:

Wheat is a kind of staple food crop, and an important source for carbohydrates and microelement for human health. Therefore, it is of great significance to clarify the micronutrient concentration and nutritional status of wheat grain in the major wheat production regions in China, for the purpose of optimizing wheat micronutrient management and maintaining human health. Totally, 1112 wheat and soil samples were collected from 17 major wheat production provinces in China during 2016 to 2020. Microelement concentrations of the samples were determined and nutritional status was evaluated by comparison with the acceptable daily intake value (ADI) according to the human micronutrient intake standard of Chinese Nutrition Society and health risk assessment method of United States Environmental Protection Agency, as well as the dietary habit of Chinese residents. Results showed that the average grain iron (Fe) concentration of wheat in China was 43.8 mg kg-1 when 72.9% of the samples of Fe concentration was under the lower Fe limit of 50 mg kg-1, and all the samples were under the upper limit of 140 mg kg-1. The average grain manganese (Mn) concentration was 43.0 mg kg-1 when only 4.1% of samples were under the lower limit of 22 mg kg-1 and 23.7% of samples were above the upper limit of 50 mg kg-1. The average grain copper (Cu) concentration was 4.6 mg kg-1 when 7.6% of samples were under the lower limit of 3 mg kg-1 and no sample was above the upper limit of 10 mg kg-1. The average grain zinc (Zn) concentration was 31.4 mg kg-1 when 85.8% of samples were under the lower limit of 40 mg kg-1 and only 4.1% was above the upper limit of 50 mg kg-1. The average grain boron (B) concentration was 1.2 mg kg-1 when 29.2% of samples was under the lower limit of 0.8 mg kg-1 and no sample was above the upper limit of 10 mg kg-1. The average grain molybdenum (Mo) concentration was 0.5 mg kg-1 when 18.8% of samples were under the lower limit of 0.2 mg kg-1 and only 0.4% of samples was above the upper limit of 2 mg kg-1. There were regional variations in the contents of wheat grain micronutrient in major wheat production regions in China, among which the contents of Fe and Zn were generally low in most regions, and the contents of B and Mo were insufficient in some areas, while the content of Mn was high, and the content of Cu was basically in the recommended concentration ranges.