Integrated farming and animal husbandry cannot do without organic fertilizer equipment for the following reasons:

1. Solving the problem of livestock waste disposal: Organic fertilizer equipment can convert waste such as livestock manure and crop straw into organic fertilizer, effectively solving the problem of large amounts of waste generated during the farming process and preventing environmental pollution.

2. Enabling resource recycling: Organic fertilizer equipment can convert livestock manure into high-quality organic fertilizer for use in crop cultivation, thus achieving resource recycling.

3. Improving soil fertility and crop quality: The use of organic fertilizer can significantly improve soil structure, increase soil organic matter content, and enhance soil water and fertilizer retention, thereby increasing crop yield and quality.

4. Reducing the use of chemical fertilizers: In integrated farming and animal husbandry, organic fertilizers produced by organic fertilizer equipment can partially replace chemical fertilizers, reducing chemical fertilizer use, lowering agricultural production costs, and minimizing environmental pollution caused by excessive use of chemical fertilizers.

5. Promote green agricultural development: The integrated farming and livestock model, combined with the use of organic fertilizer production lines, helps build a green and sustainable agricultural production system and promotes the development of agriculture towards an ecological cycle.

6. Improve economic benefits: Organic fertilizer equipment not only reduces waste disposal costs but also generates additional income through the production of organic fertilizer. Furthermore, the use of organic fertilizer can enhance the market competitiveness of agricultural products and increase farmers' income.

In summary, organic fertilizer equipment plays an indispensable role in the integrated farming and livestock model and is a key link in achieving the recycling of agricultural resources, environmental protection, and improved economic benefits.