How to Produce Qualified Bio-Organic Fertilizer

Bio-organic fertilizer, as a crucial support for green agricultural development, possesses multiple advantages, including improving soil structure, enhancing crop quality, and reducing reliance on chemical fertilizers.  Its product quality directly impacts agricultural production safety and ecological benefits. Therefore, producing qualified bio-organic fertilizer requires establishing a comprehensive quality control system, strictly controlling every critical link from raw material selection to finished product delivery.

Raw material selection is the fundamental prerequisite for ensuring product quality. Priority should be given to organic raw materials with clear origins and stable quality, such as composted livestock and poultry manure, crop straw, and soybean and rapeseed meal.  At the same time, the quality of raw materials must be strictly checked to prevent the inclusion of waste materials containing excessive heavy metals, toxic and harmful substances, or pest and disease eggs. Before warehousing, raw materials need to be pre-treated.  Materials are refined using crushing equipment, and the carbon-nitrogen ratio is scientifically adjusted to a suitable range of 25:1-30:1, along with appropriate moisture adjustment, laying a solid foundation for the subsequent microbial fermentation process.

Fermentation and composting are the core links in producing qualified bio-organic fertilizer, directly determining the product's fertilizing effect and safety. Precisely selected high-efficiency composite microbial inoculants, such as Bacillus subtilis and yeast, should be inoculated.  The fermentation environment should then be controlled, maintaining the temperature at 55-65℃ for 5-7 days. This temperature effectively kills pathogens, weed seeds, and insect eggs in the raw materials. During fermentation, a compost turning machine should be used for regular turning and ventilation to ensure the oxygen requirements of microorganisms.  The moisture content of the material should be controlled at 50%-60% to avoid anaerobic fermentation and the production of harmful gases such as hydrogen sulfide due to oxygen deficiency. The finished composted material should be dark brown, loose, free of lumps, and without any noticeable odor, with an organic matter content of no less than 30%.

Subsequent processing and finished product testing are the last line of defense in quality control. Using a professional bio-organic fertilizer production line, the composted material is first screened to remove impurities and large particles, and then processed through bio-organic fertilizer equipment to complete granulation and drying, improving the convenience of application and storage stability of the product. Before finished products leave the factory, they must undergo rigorous quality testing, focusing on key indicators such as organic matter content, effective viable bacterial count, heavy metal (lead, cadmium, mercury, etc.) content, and pH value, to ensure that all indicators meet the GB/T 20287-2006 "Agricultural Microbial Inoculants" national standard. After passing the tests, the product name, technical specifications, production date, shelf life, and manufacturer information must be clearly marked on the packaging before it can be stored and sold.

In addition, throughout the production process, strict site hygiene management must be maintained, with functional areas such as raw material areas, fermentation areas, and finished product areas clearly demarcated to prevent cross-contamination of materials at different stages.  A production log must also be established, meticulously recording information such as raw material sources, fermentation parameters, and test results, to facilitate quality traceability. Only through comprehensive and meticulous control of standards at every stage can consistently qualified bio-organic fertilizers be produced, contributing to the sustainable development of agricultural ecosystems.

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