Agricultural glass greenhouse engineers have always emphasized high light transmittance when choosing diffuse reflection glass on the top. High light transmittance can not only bring more sufficient light to the growth of fruits and vegetables in the greenhouse, but also the scattering characteristics of diffuse reflection glass can ensure the fruits and vegetables. The roots can also get sufficient light. If you think that the higher the light, the better, you are wrong. The photosynthesis capacity of fruits and vegetables is limited. Plant growth emphasizes photosynthesis, and there is a light compensation point and a light saturation point.

What is the light compensation point and light saturation point, for example, it is like I am hungry and want to consume body fat. Insufficient light for fruits and vegetables, such as respiration at night, releases carbon dioxide, consumes nutrients, and fruits and vegetables are not growing. After I ate two bites of rice, I didn't feel hungry anymore. At this time, it belongs to the light compensation point, and the fruits and vegetables are in a state of neither consumption nor growth. Generally, this state will not last for a long time. I ate for a while and felt full. This time is the light saturation point. The plant has the maximum horsepower for photosynthesis. No matter how high the light intensity is, there is no way to produce more nutrients. If you are full, eat again, and you will die. When the fruits and vegetables reach the light saturation point, photosynthesis will not be carried out any more. At this time, the leaves of fruits and vegetables will be browned if the light is too strong.

Greenhouse fruits and vegetables need light, and not all light is needed for plant growth. So what kind of light is needed for plant growth?

The light selective performance of the diffuse reflection glass in the greenhouse just meets the light demand for plant growth. Is there another possibility, what if the intensity of blue-violet light and infrared light exceeds the light saturation point of plant growth?

This is also the reason why the greenhouse diffuse reflection glass is designed as rolled glass. The rolled fragrant pear pattern has a certain scattering characteristic, which can disperse the light, which not only increases the coverage area of the light, but also reduces the light intensity. With the haze properties of diffuse reflection glass, it can further reduce the inhibitory effect of excessive light on plant growth.

The choice of greenhouse glass not only depends on the characteristics of the glass itself, but also depends on the local environmental conditions and the growth characteristics of plants to selectively customize the specifications of the glass.