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Remediation and control of heavy metals in paddy field - Part 3: Physiological barriers
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Basic data
| Standard ID | GB/T 43419.3-2023 (GB/T43419.3-2023) |
| Description (Translated English) | Remediation and control of heavy metals in paddy field - Part 3: Physiological barriers |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Z05 |
| Classification of International Standard | 13.080 |
| Word Count Estimation | 9,994 |
| Date of Issue | 2023-11-27 |
| Date of Implementation | 2024-03-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 43419.3-2023: Remediation and control of heavy metals in paddy field - Part 3: Physiological barriers
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 13:080
CCSZ05
National Standards of People's Republic of China
Heavy metal control in rice fields
Part 3: Physiological Barrier
Published on 2023-11-27
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Silicon-based physiological barrier 1
5 Manganese physiological barrier 2
6 Technology Selection and Combination 2
7 Secondary environmental risk prevention 3
Appendix A (informative) Physiological barrier agent dosage 4
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document is Part 3 of GB/T 43419 "Heavy Metal Control in Rice Fields": GB/T 43419 has published the following parts:
---Part 1: General provisions;
---Part 2: Passivation conditioning;
---Part 3: Physiological barrier:
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is 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 Soil Quality Standardization Technical Committee (SAC/TC404):
This document was drafted by: Institute of Ecology, Environment and Soil, Guangdong Academy of Sciences, Nanjing Soil Research Institute, Chinese Academy of Sciences, Chinese Academy of Sciences
Ecological Environment Research Center, Agricultural Ecology and Resource Protection Station of the Ministry of Agriculture and Rural Affairs, Zhejiang University, Chinese Academy of Agricultural Sciences Agricultural Resources and Agriculture
Institute of Zoning, Tsinghua University, Guangxi University, Jiangsu Institute of Quality and Standardization:
The main drafters of this document: Li Fangbai, Fang Liping, Duan Qiangcheng, Zhao Bin, Lei Jing, Wang Xingxiang, Zhu Yongguan, Zheng Shunan, Duan Guilan, Xu Jianming,
Ma Yibing, Liu Chuanping, Liu Tongxu, Hou Deyi, Chen Junmei, Li Xiaohua, Hou Yueli, Ding Changfeng, Wu Yundang, Huang Rong, Guan Xulin, Dou Fei:
Introduction
GB/T 43419 "Heavy Metal Control in Rice Fields" is a technical standard to guide the control of heavy metals in rice fields: It aims to guide the management of heavy metals in rice fields:
Work process, through selecting appropriate treatment technologies, to achieve safe production in contaminated rice fields: GB/T 43419 is planned to consist of three parts:
---Part 1: General principles: The purpose is to provide general technical guidance for the entire process of heavy metal control in rice fields:
---Part 2: Passivation conditioning: The purpose is to select appropriate soil control methods for single and compound pollution of cadmium, mercury, arsenic, lead and chromium in rice fields:
Provide technical guidance on appropriate passivating conditioners:
---Part 3: Physiological barrier: The purpose is to provide technical guidance for selecting appropriate physiological barrier agents for heavy metal control in rice fields:
This document is Part 3 of GB/T 43419: Through the implementation of physiological barrier measures, the content of heavy metals in edible parts of agricultural products is reduced, so as to
Reduce the risk of excessive heavy metals in agricultural products, promote the production of agricultural products that meet standards, and provide standardization for the development of heavy metal control and environmental protection industries in rice fields:
support:
Heavy metal control in rice fields
Part 3: Physiological Barrier
1 Scope
This document stipulates silicon-based physiological barriers, manganese physiological barriers, technology selection and combination, and secondary environmental risk prevention in heavy metal treatment in rice fields:
Fan et al:
This document is applicable to the implementation of physiological barrier technology for heavy metal pollution in rice fields:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB 15618-2018 Soil Environmental Quality Agricultural Land Soil Pollution Risk Management and Control Standards (Trial)
GB/T 43419:1 Heavy metal control in rice fields Part 1: General principles
3 Terms and definitions
The terms and definitions defined in GB/T 43419:1 and the following apply to this document:
3:1
It has the physiological functions of regulating the antagonism, absorption, transport, accumulation and detoxification of heavy metal ions and reducing the risk of excessive heavy metals in agricultural products:
substance:
3:2
It has the physiological functions of regulating the antagonism, absorption, transport, accumulation and detoxification of heavy metal ions, and reduces the risk of excessive heavy metals in agricultural products: Manganese-containing
substance:
4 Silicon-based physiological barrier
4:1 Selection of silicone-based physiological barrier agents
4:1:1 Silicon physiological barrier
In view of cadmium pollution in rice fields, when using 0:025 mol/L citric acid extraction and silicon-molybdenum blue colorimetric method to determine the effective silicon content of the soil, it is lower than
When 100mg/kg, it is advisable to choose a silicone physiological barrier agent: The application dose is equivalent to 3kg/hm2~6kg/hm2 of pure silicon dioxide: When the treatment unit, etc:
When the level is II2, the dosage should be increased appropriately: When rice varieties have a strong ability to accumulate heavy metals or are planted in late seasons, spraying should be increased:
dose:
4:1:2 Selenium-silicon composite physiological barrier
In response to cadmium, arsenic, and mercury pollution in rice fields, when the physiological barrier of silicon cannot meet the compliance rate requirements for heavy metal content in rice, selenium-silicon composite biomass should be selected:
...
