The main principles and effects of organic fertilizer equipment to improve the output of agricultural products are as follows:

1. Provide comprehensive nutrients: Organic fertilizers contain a variety of nutrients, including a large number of elements, medium elements and trace elements, which can fully meet the needs of crop growth, promote the healthy growth of crops, and thus improve yields.

2. Improve soil structure: Organic fertilizer can increase soil organic matter content, improve soil structure, improve soil water and fertilizer retention capacity, and provide a better growing environment for crops.

3. Improve soil fertility: The application of organic fertilizer can improve soil fertility, increase microbial activity in the soil, promote the transformation and circulation of nutrients in the soil, and improve the availability of soil nutrients.

4. Improve the utilization rate of fertilizer: the combination of organic fertilizer and fertilizer can improve the utilization rate of fertilizer, reduce the loss of nutrients, improve the absorption efficiency of nutrients by crops, and thus increase the yield.

5. Promote crop growth: Organic substances in organic fertilizers can stimulate crop growth, improve the growth rate and growth quality of crops, thereby increasing the yield of crops.

6. Improve the quality of agricultural products: The application of organic fertilizer can not only improve the yield of crops, but also improve the quality of agricultural products and improve the market competitiveness of agricultural products.

7. Economic benefits: The application of organic fertilizer can reduce the amount of fertilizer used, reduce agricultural production costs, and improve crop yield and quality, increasing farmers' economic benefits.

In summary, organic fertilizer production lines effectively improve the yield of agricultural products by providing comprehensive nutrients, improving soil structure, promoting crop growth and improving the quality of agricultural products