What are the impacts of changes in carbon dioxide concentration on agricultural greenhouse crop cultivation?

As we all know, the basic elements for the growth of green plants are carbon dioxide and water. Under light conditions, plants perform photosynthesis through chloroplasts, synthesize carbohydrates, and release oxygen. According to relevant measurements, each gram of organic matter synthesized by plants needs to absorb 1.6 grams of carbon dioxide, which is 40 times that of other substances. 90% of the dry matter accumulated by plants comes from photosynthetic products. The amount of carbon dioxide used by one acre of crops is equivalent to 80,000 to 120,000 cubic meters of carbon dioxide in the air, which shows the importance of carbon dioxide to plants.

Since carbon dioxide is a colorless and odorless gas, it is often overlooked when it is invisible or intangible in the air, especially for crops grown in greenhouses. For crops grown in greenhouses, if it is winter, in order to keep warm, the doors and windows are closed tightly to make them airtight. After the sun comes out, due to the enhanced photosynthesis of crops, the carbon dioxide concentration in the greenhouse drops rapidly, and fresh air cannot enter the outside world. When the carbon dioxide concentration in the greenhouse is reduced to about 100PPm, although there is sufficient sunshine and the water absorbed by the plant roots is not enough, the carbon dioxide is insufficient, the plants cannot perform photosynthesis, and carbon oxide "starvation" occurs, affecting normal growth, yield and quality.

When the carbon dioxide content is insufficient, plants will be in a "starving" state, which will have a great impact on crop growth and development. The leaf color tends to be dull and the plant growth is poor. Flowers and fruits also fall off easily. There are many deformed fruits and the quality is reduced. Negative effects such as reduced output. Excessive carbon dioxide concentration can easily cause leaves to curl, affecting the normal progress of photosynthesis, affecting crops' absorption of oxygen, and hindering normal respiration and metabolism.

Therefore, the supplementation of carbon dioxide in greenhouse cultivation also plays an important role in modern smart greenhouses, which can help growers obtain better crop performance, more dry matter synthesis, longer shelf life, better fruit taste, etc. A superb effect.