2. Evaluate capacity: Consider the capacity that your organic fertilizer production line needs to achieve. This will determine the number and scale of equipment required. At the same time, consider the flexibility of the production line so that capacity can be adjusted when needed.

3. Choose the right equipment: according to your production needs, choose the right equipment, such as mixer, fermenter, crusher, screening machine, etc. Ensure that the selected equipment can meet your process requirements and has reliable performance and long life.

4. Consider environmental standards: Organic fertilizer production should meet environmental standards, including harmless treatment and emission control. When selecting equipment, ensure that they comply with relevant regulatory requirements and have effective environmental performance.

5. Consider the investment cost: When choosing an organic fertilizer production line, consider the investment cost and return. Choose the right combination of equipment and technology for you based on your budget and profitability.

6. Research suppliers: Choose experienced and reputable suppliers to ensure that you receive high quality equipment and technical support. Communicate fully with suppliers to understand their service, warranty and after-sales support.

7. Evaluate after-sales service: When choosing organic fertilizer production lines, after-sales service is very important. Ensure that suppliers provide comprehensive training, technical support and maintenance services to ensure the proper operation and long-term reliability of the production line.