The strategy of cost control in the production process of organic fertilizer production line can be started from the following aspects:

1. Improve production efficiency: reduce waste and time cost in production by optimizing process flow and improving automation level of organic fertilizer equipment.

2. Raw material procurement: Rational planning of raw material procurement plan, batch procurement to reduce raw material costs, and ensure the quality and supply stability of raw materials.

3. Energy management: Adopt energy-saving technology and equipment, such as energy-saving organic fertilizer dryers and fermentation equipment, to reduce energy consumption and reduce energy costs.

4. Reduce loss: By improving equipment and process, reduce raw material loss and product loss in the production process.

5. Equipment maintenance: Regular maintenance and maintenance of the equipment, extend the service life of the equipment, reduce the downtime and maintenance costs caused by equipment failure.

6. Market positioning: Adjust the product structure according to market demand, produce marketable products, and improve the added value of products.

7. Policy utilization: Make full use of the state's preferential tax policies for the organic fertilizer industry, such as VAT exemption, to reduce the tax burden of enterprises.

8. Technological innovation: Improve product quality and production efficiency through technological innovation, and reduce unit product cost.

9. Environmental protection investment: Although it may increase costs in the short term, in the long run, compliance with environmental protection requirements can avoid fines and production losses caused by environmental problems.

Through the above measures, organic fertilizer production lines can effectively control production costs and improve market competitiveness while ensuring product quality.