Introduction
Organic granular fertilizers are gaining increasing importance in modern agriculture due to their ease of application, long-lasting fertilizer efficiency, and environmental friendliness. Whether for industrial-scale production or small-scale homemade preparation, scientific production processes must be followed to ensure product quality and effectiveness. This article provides a detailed introduction to the production technology and key technical points of organic granular fertilizers.
Industrial Production Process
Raw Material Pretreatment
First, ensure complete decomposition of organic raw materials, which is crucial for product quality. The decomposed materials should be crushed into 80-100 mesh fine powder, with moisture content adjusted to the ideal range of 15%-25%.
Ingredient Mixing
Add appropriate amounts of NPK chemical fertilizers or mineral powders according to the target nutrient ratio. Simultaneously, 0.5%-2% binders can be added to enhance formability. The mixing process must ensure uniform material consistency.
Granulation
Common granulation equipment includes disc granulators and rotary drum granulators. By adjusting equipment parameters and adding appropriate amounts of water, the powder material aggregates into uniform 2-4mm particles.
Drying and Cooling
Wet granules need to be dried at 100-120°C until moisture content reaches ≤10%, then cooled to room temperature to enhance particle strength and prevent caking.
Screening and Packaging
Qualified particles are obtained through screening, with substandard products returned for re-granulation. Finished products are sealed and stored in breathable packaging bags.
Homemade Methods
For small-scale needs, a simplified production process can be adopted:
- Use completely decomposed organic fertilizer as raw material, crushed and sieved through 60 mesh
- Add 5%-10% fine soil or bentonite as binder
- Adjust moisture content to around 20% and shape manually
- Air dry naturally for 2-3 days until completely dry
- Screen and store sealed to prevent moisture absorption
Key Technical Points
- Raw Material Decomposition:Must ensure complete decomposition of raw materials, otherwise it may cause particle cracking, odor generation, and even crop damage
- Moisture Control:Moisture content is a key factor for successful granulation and needs precise adjustment according to material characteristics
- Temperature Management:Drying temperature should not exceed 120°C to avoid damaging organic matter and beneficial microorganisms
- Storage Conditions:Finished products should be stored in ventilated, dry environments with a typical shelf life of 6-12 months
- Quality Control:Regularly check particle strength, nutrient content, and moisture content indicators
Quality Advantages and Application Value
Organic granular fertilizers offer significant advantages over powdered organic fertilizers. The granular form facilitates mechanical application, reduces nutrient loss, and improves utilization efficiency. Meanwhile, granular fertilizers slowly release nutrients in the soil, providing long-lasting fertilizer effects. For large-scale agricultural production, granular fertilizers are convenient for storage and transportation, reducing overall costs. With the rapid development of organic agriculture, the market demand for organic granular fertilizers continues to grow, making mastery of their production technology practically significant.
In conclusion, the production of high-quality organic granular fertilizers represents a sophisticated integration of traditional knowledge and modern technology. The complete production ecosystem begins with the crucial organic fertilizer fermentation process, where equipment like the large wheel compost turner and chain compost turning machine efficiently manage the organic fertilizer fermentation phase. Advanced fermentation composting technology for organic fertilizer ensures optimal decomposition before materials proceed to granulation. The heart of any organic fertilizer production line or bio organic fertilizer production line features versatile equipment such as the rotary drum granulator, drum granulator, and disc granulator for precise drum granulation. Supporting machinery like the drum organic fertilizer dryer and various compost fertilizer machine units complete the comprehensive fertilizer production machine setup. For operations requiring alternative approaches, the double roller press granulator and roller press granulator production line offer additional fertilizer making machine options. These sophisticated systems, whether for dedicated npk production line operations or specialized npk fertilizer production process requirements, demonstrate how modern equipments required for biofertilizer production have revolutionized agricultural inputs. The synergy between proper windrow machine management and advanced granulation technologies ensures that today’s organic fertilizer production meets both quality standards and environmental sustainability goals, supporting the global transition toward more ecological farming practices.
