GB/T 44971-2024Soil selenium grade (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the Ministry of Agriculture and Rural Affairs of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee on Soil Quality Standardization (SAC/TC404).

This document was drafted by: Nanjing Institute of Soil Science, Chinese Academy of Sciences, Suzhou Selenium Valley Technology Co., Ltd., Anhui University of Science and Technology, Nanjing Hengbaotian Functional Agriculture Industry Research Institute Co., Ltd., Suzhou University of Science and Technology, Jiangsu Quality and Standardization Research Institute, Jiutian Environmental Technology Nanjing Co., Ltd.

Department of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Guangxi Academy of Agricultural Sciences, Ankang City Selenium-enriched Product Research and Development Center, Yangquan Agriculture and Rural Affairs Bureau, Hubei Institute of Geological Sciences, Jiangxi Institute of Geological Survey and Exploration, Zhejiang Institute of Geology, Ganzhou Comprehensive Inspection and Testing Institute, Shanxi Geological Survey Institute Co., Ltd., Shenyang Geological Survey Center of China Geological Survey, Yichun Selenium Resources Development and Utilization Center, Anhui Geological Survey Institute (Anhui Institute of Geological Sciences), Huazhong Agricultural University, Heilongjiang Black Soil Protection and Utilization Research Institute, Anhui Selenium Valley Biotechnology Co., Ltd., Suzhou Agricultural Vocational and Technical College, National Geological Experiment and Testing Center, Hebei Provincial Institute of Geological Survey, Yichun University Institute, Shaanxi National Selenium Valley Selenium-rich Products R&D Center Co., Ltd., Chizhou Academy of Agricultural Sciences, Shitai County Agriculture and Rural Affairs Bureau, Shitai County Market Supervision and Inspection Institute of Laboratory Technology, Anhui Agricultural University.

The main drafters of this document are: Duan Zengqiang, Yin Xuebin, Wang Zhangmin, Liu Zhikui, Huang Ruilin, Wang Yiming, Guan Xulin, Hou Yueli, Cheng Hangxin, Liu Yongxian, Dong Shanshan, Yue Runqing, Wang Mei, Chen Meijun, Tang Dejian, Liao Han, Xu Mingxing, Yang Zhiming, Xia Zengrun, Yang Liangzhe, Gao Yuan, Chu Xianyao, Peng Min, Huang Chunlei, Li Mengqi, Wu Peng, Liang Shuai, Liu Ying, Li Minghui, Liang Hongxia, Tu Shuxin, Yan Jiali, Kuang Enjun, Zhang Jiuming, Feng Lixin, Zhang Zezhou, Mao Yanjun, Liu Ying, Pang Min, Li Fei, Song Jiaping, Lu Xiaoqi, Sun Chenlu, Xia Xuli, Liu Xianbiao, Liu Siwen, Liu Jiuchen, Li Xiaofeng, Ding Yongdian, Ji Genxue, Jiang Han, Jiang Yuxiang, Hu Run, Peng Yousheng, Chen Shiyou, Wu Chenglong, Hu Shuli, Wang Yingchun, Li Miao. Soil selenium content level

1 Scope

This document specifies the requirements for soil selenium content classification and describes the sampling and detection methods.

This document is applicable to the classification of selenium content in agricultural land soils, and can be used as a reference for the classification of selenium content in other types of soils.

2 Normative references

NY/T 1104

NY/T 1121.1

NY/T 1121.2

NY/T 3420

3 Terms and definitions

The following terms and definitions apply to this document.

4 Classification of soil selenium content

The classification of soil selenium content should comply with the requirements of Table 1.

Table 1 Classification of soil selenium content Soil Selenium Level pH Value Total selenium content in soil (x)a mg/kg Available selenium content in soil (y)a mg/kg illustrate High Selenium - x >3.0 y >0.50 Selenium in edible agricultural products produced The content may be too high Selenium-rich pH<=5.5 0.40< x<=3.0 5.5< pH<=7.5 0.35< x<=3.0 pH >7.5 0.30< x<=3.0 0.05< y<=0.50 Producing selenium-rich edible agricultural products Product potential