The problems existing in the construction of doctor farm can be analyzed from many aspects. Here are some common questions:

1. land problem: the construction of doctor farm needs a lot of land for crop planting and breeding, but the land resources are limited. In the surrounding areas of the city, the land has often been developed and utilized, and it is difficult to find a large area of suitable land. In addition, some farms may have poor soil quality or pollution problems.

2. Funds: The construction of the doctor farm needs to invest a lot of funds, including purchasing land, building facilities, purchasing breeding equipment, hiring employees, etc. Lack of financial support may limit the scale and development speed of the farm.

3. Environmental problems: The construction of doctor farm needs to ensure the cleanliness and stability of the surrounding environment to ensure the growth of crops and the health of animals. However, there may be pollution sources such as industrial areas and traffic arteries around the farm, which may adversely affect the quality and safety of agricultural products.

4. Technical problems: The construction of doctor farm needs the support of agricultural technology, including planting, breeding and disease prevention. The lack of suitable technology and professionals may lead to the failure of farm operation.

5. Market problem: The products of Doctor Farm need to be sold to consumers, and market demand and competition will have an impact on the development of the farm. If the market demand is insufficient or the competition is fierce, it may make it difficult for farms to make profits.

In addition to the problems listed above, the construction of doctor farm may also face other challenges, such as policy support and approval, water use and labor problems. Each specific doctor farm construction project may face different problems, which need to be solved by considering relevant factors comprehensively.