Film greenhouses are constructed using thin film as a covering material.The main structure of this kind of greenhouse is not only simple and practical, but also the cost is relatively low, which is very suitable for the cultivation of vegetables and other crops. The top of the film greenhouse can usually be covered by double-arch double-film or single-film, while the surrounding can be covered by different materials such as double-film, single-film, PC board or glass according to the needs, so as to realize the automatic control of the greenhouse environment. Its high light transmittance, good thermal insulation performance and strong aging resistance make the film greenhouse provide a stable and suitable growth environment for vegetables, thus having a positive impact on the growth and yield of crops.
A single-pan hydroponic system is a simple and cost-effective way to grow vegetables in a greenhouse. It involves using a single container or tray filled with an inert growing medium, such as perlite or vermiculite, and a nutrient solution that is circulated through the system.
To set up a single-pan hydroponic system for vegetable farming in a greenhouse, follow these steps:
Prepare the container: Select a container or tray that is large enough to accommodate your plants. Line the bottom with a layer of perlite or vermiculite, which will act as the growing medium.
Install the watering system: Set up a watering system that can deliver the nutrient solution to the plants. This can be done using a drip irrigation system or a flood and drain system.
Add the nutrient solution: Fill the container with the nutrient solution, ensuring that it covers the bottom of the plants' roots. The solution should be replaced regularly to prevent the buildup of salts and other minerals.
Plant your vegetables: Choose suitable vegetables for hydroponic growing, such as leafy greens, herbs, and root crops. Plant them in the growing medium, ensuring that they are spaced appropriately.
Monitor and maintain the system: Check the nutrient solution regularly and replace it when necessary. Monitor the plants for signs of nutrient deficiencies or pest infestations, and take appropriate action if necessary.
With proper care and maintenance, a single-pan hydroponic system can provide a reliable and efficient way to grow vegetables in a greenhouse.

Compared with the traditional glass greenhouse, it has the following advantages:

1. Low cost: Compared with traditional glass greenhouses, film greenhouses are less expensive to build and operate, making them ideal for small and medium-sized farms and home gardens.
2. Flexibility: The installation and disassembly of the film greenhouse is relatively simple, and the position and size can be easily adjusted according to the needs.
3. Energy-saving and environmental protection: The film material has good light transmittance, which can effectively utilize natural light and reduce the demand for artificial lighting. At the same time, the thermal insulation of the film helps to reduce energy consumption.
4. Strong adaptability: Film greenhouse can be used in different climatic conditions, whether in cold winter or hot summer, it can provide a suitable growth environment for plants.
5. Prevent pests and diseases: Film greenhouse can effectively isolate external pests and diseases, reduce the use of pesticides, and help to produce safer and healthier agricultural products

In order to achieve efficient and accurate control of plant growth environment, film greenhouse needs to be equipped with a series of facilities and systems. Below are some of the main supporting facilities.