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GB/T 41193-2021Assessment for fertility of anaerobic digested fertilizer (English PDF)

沼肥肥效评估方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 31, 2021

Implementation date

July 1, 2022

Scope

GB/T 41193-2021 is the English-translated version of 沼肥肥效评估方法.

GB/T 41193-2021 is the Chinese national method for assessing how well biogas fertilizer works in the field. It covers the design of the trial, the choice of the trial site, field management, the evaluation of fertilizer efficiency and the writing of the report.

It applies to solid and liquid biogas fertilizer made by complete anaerobic fermentation of organic wastes such as livestock manure and straw.

A normative annex lists what must be recorded during the trial, and another sets the intrinsic quality indicators and test methods for specific crops, drawing on methods for protein, starch, soluble sugars, tea polyphenols, capsaicinoids, ginsenosides and cotton fibre properties.

It gives field trials of biogas fertilizer a common basis, so that results can be compared. It was issued on 31 December 2021 and has applied since 1 July 2022.

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Document preview — GB/T 41193-2021

National Standard of the People's Republic of China

ICS: 27.010
Classification: F 13

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Evaluation Method
Appendix A (normative) Record content of biogas fertilizer efficiency evaluation test
Appendix B (normative) Intrinsic Quality Assessment Indicators and Test Methods of Specific Crops
Reference

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 of Standardization Documents" drafted.

1 Scope

This document describes the experimental design, selection of experimental sites, field management, fertilizer efficiency evaluation, and report writing for biogas fertilizer efficiency evaluation.

This document is applicable to biogas fertilizer produced by fully anaerobic fermentation using livestock manure, straw and other organic wastes as raw materials.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB 2635 Flue-cured tobacco

GB 5009.5 National Food Safety Standard for Determination of Protein in Food

GB 5009.9 National Food Safety Standard for Determination of Starch in Food

GB 5009.33 National Food Safety Standard for Determination of Nitrite and Nitrate in Food

GB 5009.86 National Food Safety Standard Determination of Ascorbic Acid in Food

GB 5009.157 National Food Safety Standard Determination of Organic Acids in Food

GB/T 5515 Grain and Oil Inspection - Determination of Crude Cellulose Content in Grain by Media Filtration Method

GB/T 8305 Determination of tea extract

GB/T 8312 Determination of theophylline

GB/T 8313 Determination method of tea polyphenols and catechins in tea

GB/T 8314 Determination of Total Free Amino Acids in Tea

GB/T 14487 Terms for Sensory Evaluation of Tea

GB/T 14488.1 Determination of Oil Content of Vegetable Oils

GB/T 20392 HVI cotton fiber physical properties test method

GB/T 21266 Determination of capsaicinoids in chili and chili products and method for expressing spiciness

GB/T 22996 Determination of various ginsenosides in ginseng by liquid chromatography-ultraviolet detection method

NY/T 497-2002 Technical Regulations for Field Test of Fertilizer Effect Appraisal

NY/T 1119-2019 Technical Regulations for Quality Monitoring of Cultivated Land

NY/T 1278 Determination of soluble sugars in vegetables and their products by copper reduction iodometric method

NY/T 1295 Determination of total flavonoids in buckwheat and its products

NY/T 2637 Determination of soluble solid content in fruits and vegetables by refractometric method

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Anaerobic digested fertilizer

Solid and liquid fertilizers are produced by fully anaerobic fermentation using organic wastes such as livestock manure and straw as raw materials.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB 28381-2026|GB 29447-2026|GB 30255-2026|GB 47834-2026|GB 47835-2026|GB/T 47007-2026

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