1, the price of vegetables has been stagnant in recent years. Although the supermarket is expensive, it is really cheap from the ground.

2. The risk of natural and man-made disasters is relatively high.

3. The process of planting is also hard and arduous. Many people are willing to work instead of planting vegetable greenhouses.

4. Making ends meet: A greenhouse invested 20,000 yuan and finally earned 1 10,000, which is not counting its own labor costs. Who wants to do such a loss-making business?