1. We have selected a new plastic film, which is also regularly cleaned to ensure its cleanliness and transparency.

2. Covered with plastic film, the white plastic not only increases the temperature but also enhances light exposure in the early stages.

3. Trees should be spaced appropriately to ensure each tree receives sufficient light.

4. Reflective screens can be hung in greenhouses as needed.

Relatively speaking, the sunshade system will be simpler, as farmers can achieve this through various shading screens. However, it is important to note that the choice of sunshade curtains should be based on the characteristics of different plants.