What are the product quality standards for bio organic fertilizers?

Updated on Three rural 2024-03-22
6 answers
  1. Anonymous users2024-02-07

    Bio-organic fertilizer implements the People's Republic of China Agricultural Standard NY884-2004 "Bio-organic Fertilizer". The standard stipulates that the microbial strains applied should be safe and effective, with clear ** and species names. The requirements for the appearance (organoleptic) technical indicators of the finished bio-organic fertilizer are:

    Powder products should be loose and free of foul odor; Granule products should have no obvious mechanical impurities, uniform size, and no spoilage smell. The standard specifies the indicators of bio-organic fertilizer products. The specific inspection methods for appearance and various technical indicators are specified in GB20287-2006 "Agricultural Microbial Agents".

    The heavy metal content index in bio-organic fertilizer products should comply with the provisions of GB20287-2006 "Agricultural Microbial Agents". The standard stipulates that the inorganic nutrients added to bio-organic fertilizer products should be marked with the total nutrient content in the product, which is expressed as the total amount of nitrogen, phosphorus and potassium (N+P2O5+K2O). The technical indicators of bio-organic fertilizer should be in line with the agricultural industry standard of the People's Republic of China NY884-2004 "Bio-organic fertilizer", see Table 6-4.

    Table 6-4 Technical requirements for bio-organic fertilizer products.

    1) The inspection of bio-organic fertilizer products is qualified if it has any of the following items: all technical indicators of the product meet the requirements of the standard; Among the appearance, pH and moisture testing items of the product, one item does not meet the requirements of the standard, while other indicators of the product meet the requirements of the standard.

    2) The inspection of bio-organic fertilizer products with any of the following items is unqualified products: the number of effective viable bacteria in the product does not meet the standard requirements; The organic matter content does not meet the requirements of the standard; The number of fecal coliforms does not meet the standard requirements; The mortality rate of roundworm eggs does not meet the standard requirements; The content of heavy metals such as arsenic, cadmium, lead, chromium and mercury does not meet the requirements of the standard; The appearance, pH, and test items of the product do not meet the requirements of the standard in more than 2 items.

  2. Anonymous users2024-02-06

    The national standard for bio-organic fertilizer is NY 884-2012.

    The organic matter content should be 40%. The number of effective viable bacteria per gram is greater than or equal to 100 million. Moisture content 30%.

    The pH value is required to be in between, that is, it cannot be said that strong acids are strong and alkaline. The number of fecal coliforms is less than 100 per gram. The mortality rate of roundworm eggs is greater than or equal to 95%.

    The expiration date, that is, the shelf life, should be six months or more.

    Then there are the toxic and harmful heavy metals detected, with a total arsenic content of 15 milligrams per kilogram, a total lead of 50 milligrams, a total of cadmium of 3 milligrams, a total chromium of 150 milligrams, and a total of 2 milligrams of mercury.

    There is no regulation on the amount of nitrogen, phosphorus and potassium. Generally, domestic organic fertilizer will be written 5% in the packaging bag.

    Note: The specific content can be viewed on the official website of the Ministry of Agriculture. The main thing is that these contents are stipulated.

  3. Anonymous users2024-02-05

    Legal Analysis: Requirements:

    Appearance; Organic fertilizers are brown or gray-brown, granular or powdery, free of mechanical impurities, and free of foul odor.

    The project indicators of organic fertilizer should meet the following requirements.

    Project metrics. Organic matter content (on a dry basis) (45

    Total nutrient (nitrogen + phosphorus pentoxide + potassium oxide) content (on a dry basis) (

    Moisture (free water) content (%30

    The heavy metal content, roundworm egg mortality rate and E. coli value index in pH organic fertilizer should meet the requirements of GB8172.

    The national standard for organic fertilizers stipulates the technical requirements, test methods, testing rules, identification, packaging, transportation and storage of organic fertilizers. The industry standard "Organic Fertilizer" is in charge of the Ministry of Agriculture and Rural Affairs. This standard is applicable to organic fertilizers made from by-product resources rich in organic matter such as livestock and poultry manure, animal and plant residues as the main raw materials, and after fermentation and decomposition.

    This standard does not apply to green manure, farmyard manure and other organic manure that farmers have accumulated themselves.

    Normative: The clauses in the following documents become the clauses of this standard by reference to this standard. All subsequent revisions (excluding errata) or revisions of dated references are not applicable to this standard, however, parties who have reached an agreement under this standard are encouraged to investigate the possibility of using the latest versions of these documents.

    The most recent version of an undated reference applies to this standard.

    Preparation of standard solutions for GB-T601 chemical reagent titration analysis (volume analysis).

    Representation and determination of the limit value of GB T1250.

    GB T6679 General Rules for Sampling of Solid Chemical Products.

    GB T6682 Analytical Laboratory Water Specifications and Test Methods.

    GB8172 Agricultural control standard for urban waste.

    GB T8576 Determination of free water content in compound fertilizer, vacuum oven method.

    GB18382 fertilizer identification content and requirements.

    Legal basis: "Organic fertilizer" article organic fertilizer production raw materials should follow the basic principles of "safety, hygiene, stability and effectiveness", give priority to the selection of applicable raw materials in the appendix, prohibit the selection of fly ash, steel slag, sludge, domestic garbage (except for kitchen waste after classification and aging), materials containing invasive alien species and materials prohibited by laws and regulations and other prohibited raw materials with potential safety hazards. The selection of evaluation raw materials must be evaluated and passed through the safety assessment before they can be used in the production of organic waste.

  4. Anonymous users2024-02-04

    The national standard for bio-organic fertilizer is NY 884-2012.

    The organic matter content should be 40%. The number of effective viable bacteria per gram is greater than or equal to 100 million. Moisture content 30%.

    The pH value is required to be in between, that is, it cannot be said that strong acids are strong and alkaline. The number of fecal coliforms is less than 100 per gram. The mortality rate of roundworm eggs in greenhouses is equal to 95%.

    The expiration date, that is, the shelf life, should be six months or more.

    Then there are the toxic and harmful heavy metals detected, with a total arsenic content of 15 milligrams per kilogram, a total lead of 50 milligrams, a total of cadmium of 3 milligrams, a total of chromium of 150 milligrams, and a total of mercury of 2 milligrams per kilogram.

    There is no regulation on the amount of nitrogen, phosphorus and potassium. Generally, domestic organic fertilizer will be written 5% in the packaging bag.

    Note: The specific content can be viewed on the official website of the Ministry of Agriculture. The main thing is that these contents are stipulated.

  5. Anonymous users2024-02-03

    Hello dear, I am inquiring about the relevant information for you, please be patient, I will reply to you within six minutes, don't worry.

    The national standard for bio-organic fertilizer is NY 884-2012.

    The organic matter content should be 40%. The number of effective viable bacteria per gram is greater than or equal to 100 million. Moisture content 30%.

    The pH value is required to be in between, that is, it cannot be said that strong acids are strong and alkaline. The number of fecal coliforms is less than 100 per gram. The mortality rate of roundworm eggs is greater than or equal to 95%.

    The expiration date, that is, the shelf life, should be six months or more. Then there are the toxic and harmful heavy metals detected, with a total arsenic content of 15 milligrams per kilogram, a total lead of 50 milligrams, a total of cadmium of 3 milligrams, a total chromium of 150 milligrams, and a total of 2 milligrams of mercury. There is no regulation on the amount of nitrogen, phosphorus and potassium.

    Generally, domestic organic fertilizer will be written 5% in the packaging bag. Note: The specific content can be viewed on the official website of the Ministry of Agriculture.

    The main thing is that these contents are stipulated.

    If this answer is helpful to you, you can end the consultation, please click on the evaluation of the five little stars You can also follow me, and you can always find me if you have any follow-up questions. Thank you very much! 

  6. Anonymous users2024-02-02

    Legal analysis: GB T 8170—2008 Expression and determination of remorse and limit values for numerical revision.

    Determination of fecal coliform bacteria in GB t fertilizers.

    Determination of Ascaris egg mortality in GBT fertilizer.

    NY 525—2012 Organic fertilizers.

    NY T 798—2004 Compound microbial fertilizer.

    NY 1109—2006 General Technical Guidelines for Biosafety of Microbial Fertilizers.

    NY T 1978-2010 Fertilizers Determination of mercury, arsenic, separator, lead, chromium contents.

    HG T 2843—1997 Commonly used in chemical analysis of chemical fertilizer products is the standard standard solution for random cracking, quasi-titration solution, reagent solution and indicator solution.

    Legal basis: National Standard for Bio-organic Fertilizer of the State Administration of Taxation

    The content indexes of AS, CD, PB, CR and HG in bio-organic fertilizer products should comply with the provisions of NY T 798-2004.

    If inorganic nutrients are added to the product, the total nutrient content in the product should be clearly indicated, expressed as the total amount of (N P2O5 K2O).

    5 Sampling Methods.

    Sampling inspection is carried out on each batch of products, and the sampling process should avoid contamination by miscellaneous bacteria.

    Sampling tools. Before sampling, prepare aseptic hole closed plastic bags (bottles), metal spoons, scissors, samplers, sample sealing bags, seals and other tools.

    Sampling method and quantity.

    Sampling is carried out in the product library using a random method. Sampling is in bags, and 5 10 bags are randomly selected. Under sterile conditions, take 200 300 g from each bag, then mix all the samples and divide them into 3 quarters, not less than 500 g each.

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