1. Quality control problem: The production enterprise may have the problem of lax quality control in the production process, resulting in the nutrient content of organic fertilizer is not up to standard.

2. Harmful microorganisms: If the organic fertilizer production process does not reach enough temperature and time to kill pathogens and eggs, it may affect the healthy growth of crops.

3. Technical problems: The technical problems that sheep manure organic fertilizer production line may face include low production efficiency and unstable product quality.

4. Environmental problems: Improper treatment of wastewater, waste gas and solid waste that may be generated in the production process may lead to environmental problems.

5. Market acceptance problem: The market acceptance of organic fertilizers is not high, which may be related to consumers' cognition and acceptance of organic fertilizers.

6. Unclear production process control indicators: Lack of clear production process control indicators may lead to secondary pollution and substandard product quality.

7. Large differences in production technology: Differences in production technology may lead to instability in the composition ratio and affect the quality of the final product.

8. The raw material control index of the product is not strict: the raw material control is not strict may lead to problems such as excessive heavy metals in the product.

To solve these problems, it is necessary to improve production technology, strengthen quality control, optimize production process, improve environmental protection treatment capacity and other aspects to ensure the effective operation of sheep manure organic fertilizer equipment and product quality.