Decision No. 41/1999/QĐ-BNN/KHCN issues technical standards for the agricultural sector concerning fertilizers and soil, specifying specific analytical methods for each type of micronutrient in fertilizers and soil.
Scope of application
Organizations and individuals operating in the agricultural sector, producing and trading fertilizers, researching soil and fertilizers.
Key points
- Organizations and individuals must comply with the issued technical standards under this Decision when performing tasks related to fertilizers and soil (Article 1).
- The technical standards apply to the method of determining effective potassium and effective nitrogen in fertilizers and some other micronutrients.
- The standards also specify sampling and sample preparation methods for soil, determining particle size composition, cation exchange capacity, basic cations exchange, total phosphorus and available phosphorus in soil (Article 1).
- The technical standards apply to the determination of soil acidity and aluminum exchange, moisture content and dry matter ratio of soil samples.
- This Decision takes effect fifteen days from the date of signing.
🌐 Social impact of this document
- Positive impact: Helps improve fertilizer product quality, ensuring safety for crops and the environment; supports scientific research on soil.
- Negative impact: Organizations and individuals operating in the agricultural sector may face difficulties in applying new methods.
❓ Frequently asked questions
When were the technical standards issued?
This Decision takes effect fifteen days from the date of signing, that is, from March 10, 1999.
What analytical methods are specified in the Decision?
The Decision issues technical standards for the agricultural sector concerning fertilizers and soil, specifying methods for determining effective potassium, effective nitrogen, some other micronutrients in fertilizers, and many soil analysis methods.
Who must comply with the technical standards?
Organizations and individuals operating in the agricultural sector, producing and trading fertilizers, researching soil and fertilizers.
How does this Decision affect the environment?
Positive impact: Helps improve fertilizer product quality, ensuring safety for crops and the environment.
What methods for determining micronutrients in soil are specified?
The Decision issues technical standards for soil analysis - Methods for determining total potassium, soluble potassium, total phosphorus, and available phosphorus.
Full text
Pursuant to …;
Regarding the issuance of industry standards
_________________
THE MINISTER OF AGRICULTURE AND RURAL DEVELOPMENT
Pursuant to Decree No. 73/CP dated November 1, 1995 of the Government on the functions, tasks, powers, and organizational structure of the Ministry of Agriculture and Rural Development;
Pursuant to Decree No. 86/CP dated December 8, 1995 of the Government stipulating the division of responsibilities for state management of product quality;
Considering the proposal of the Director of the Science and Technology Department - Product Quality.
DECISION:
Article 1. Now promulgates the following industry standard:
10 TCN 360 - 99: Fertilizer Analysis - Method for Determining Available Potassium (Technical Requirements)
10 TCN 361 - 99: Fertilizer Analysis - Method for Determining Available Nitrogen (Technical Requirements)
10 TCN 362 - 99: Fertilizer Analysis - Method for Determining Certain Trace Elements (Technical Requirements)
10 TCN 363 - 99: Fertilizer Analysis - Method for Determining Sulfur (Technical Requirements)
10 TCN 364 - 99: Fertilizer Analysis - Method for Determining Water-Soluble Chloride (Technical Requirements)
10 TCN 365 - 99: Fertilizer Analysis - Method for Determining Humic Acid and Fulvic Acid (Technical Requirements)
10 TCN 366 - 99: Fertilizer Analysis - Method for Determining Total Organic Carbon (Technical Requirements)
10 TCN 367 - 99: Soil Analysis - Method for Sampling and Sample Preparation (Technical Requirements)
10 TCN 368 - 99: Soil Analysis - Method for Determining Particle Size Distribution (Technical Requirements)
10 TCN 369 - 99: Soil Analysis - Method for Determining Cation Exchange Capacity (CEC) (Technical Requirements)
10 TCN 370 - 99: Soil Analysis - Method for Determining Base Cations Exchange (Technical Requirements)
10 TCN 371 - 99: Soil Analysis - Method for Determining Total Potassium (Technical Requirements)
10 TCN 372 - 99: Soil Analysis - Method for Determining Available Potassium (Technical Requirements)
10 TCN 373 - 99: Soil Analysis - Method for Determining Total Phosphorus (Technical Requirements)
10 TCN 374 - 99: Soil Analysis - Method for Determining Available Phosphorus - Bray and Kurtz Method (Technical Requirements)
10 TCN 375 - 99: Soil Analysis - Method for Determining Available Phosphorus - Olsen Method (Technical Requirements)
10 TCN 376 - 99: Soil Analysis - Method for Determining Available Phosphorus - Oniani Method (Technical Requirements)
10 TCN 377 - 99: Soil Analysis - Method for Determining Total Nitrogen (Technical Requirements)
10 TCN 378 - 99: Soil Analysis - Method for Determining Organic Carbon (Technical Requirements)
10 TCN 379 - 99: Soil Analysis - Method for Determining Acidity and Exchangeable Aluminum (Technical Requirements)
10 TCN 380 - 99: Soil Analysis - Method for Determining Moisture Content and Dry Matter Ratio (Technical Requirements)
10 TCN 381 - 99: Soil Analysis - Method for Determining pH (Technical Requirements).
12/2025/TT-BNNMT dated June 19, 2025 issued by the Minister of Agriculture and EnvironmentTHIS DECISION SHALL TAKE EFFECT 15 DAYS FROM THE DATE OF SIGNATURE.
Article 3. The Head of the Office, the Director of the Science and Technology Department - Product Quality, leaders of related organizations and individuals are responsible for implementing this Decision./.
DEPUTY MINISTER
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