2. Improve soil fertility: Organic fertilizer is rich in nitrogen, phosphorus, potassium and other nutrients, which helps to improve soil structure and soil fertility, thereby increasing crop yield.

3. Reduce fertilizer use: Organic fertilizers can replace some fertilizers, reduce the amount of fertilizer used, and reduce the environmental burden.

4. Promote sustainable agricultural development: The production and application of organic fertilizers are conducive to protecting the soil ecological environment and promoting sustainable agricultural development.

5. Reduce agricultural production costs: The use of organic fertilizer equipment can reduce agricultural production costs and increase farmers' income.

6. Policy support: The Chinese government attaches great importance to the development of organic fertilizer industry and has introduced a series of policy measures to support the construction and development of organic fertilizer production lines.

7. Market demand: With the increasing demand of consumers for green and environmentally friendly agricultural products, the market demand for organic fertilizers is also gradually expanding.

8. Technological progress: the technology of organic fertilizer production line continues to mature, improving production efficiency and product quality, and reducing production costs.

In summary, organic fertilizer production lines have many favorable conditions for pollution control in agriculture. However, to give full play to these advantages, it is necessary to strengthen policy guidance, technological innovation and market promotion.