Analyzing the application of carbon dioxide gas detector
Carbon dioxide is one of the raw materials for photosynthesis in green plants, and 95% of crop dry weight comes from photosynthesis. Therefore, carbon dioxide has become an important factor affecting crop yield. Plastic greenhouse cultivation keeps crops in relatively enclosed areas for a long time, and the concentration of carbon dioxide inside the greenhouse varies greatly. It reaches a maximum value of 1000-1200ppm before sunrise, and drops to around 100ppm after 2.5-3 hours of sunrise, which is only about 30% of the atmospheric concentration (330ppm). It continues to rise until 2 hours in the afternoon and returns to atmospheric levels around 4pm. Vegetables generally require a carbon dioxide concentration of 1000-1500ppm. Therefore, the carbon dioxide deficit in plastic greenhouses is quite severe, becoming an important factor affecting the yield of vegetables in plastic greenhouses. Installing a carbon dioxide monitor in a plastic greenhouse can ensure timely alarm in case of insufficient concentration of carbon dioxide monitor, thus enabling the use of gas fertilizer. Ensure that vegetables, edible mushrooms, flowers, traditional Chinese medicine, and other products are launched early and of high quality and yield.
The impact of applying carbon dioxide on vegetable yield
According to China Agricultural Information Network, cucumber, tomato, and zucchini are three common vegetables. In response to this actual situation, carbon dioxide fertilization experiments were conducted on these three vegetables, and the yield increase effect was very significant. Applying carbon dioxide concentration of 1000 mg/kg to three types of vegetables resulted in an average increase of 465.5 kg or 27.1% in yield per 667 square meters of cucumber; Tomatoes yield an average of 410.7 kilograms per 667 square meters, an increase of 23.6%; The average yield of zucchini increased by 373.2 kilograms per 667 square meters, with a yield increase of 21.9%.
2. The effect of applying carbon dioxide on vegetable plant traits
After applying carbon dioxide to vegetables in plastic greenhouses, the plant traits were significantly better than those without application. After applying carbon dioxide to cucumbers, the plants grew well, with a height increase of 15-20 centimeters compared to those without application. The plants had 2-3 more leaves, and the leaves were significantly larger and thicker. The leaf area per plant increased by 0.19-0.3 square meters, and the fruit set rate was high. The plants had 3-5 more fruits per plant, and the melon strips with application were black green, while those without application had 4-5 centimeters of yellow at the top. Moreover, the application of carbon dioxide gas fertilizer can enhance the cold and disease resistance of plants. After applying carbon dioxide to tomatoes, the plants significantly increased in height, the leaves became darker and greener, the fruits matured earlier, and the surface of the fruits became shiny. The plants of zucchini treated with carbon dioxide showed particularly significant changes in appearance compared to those not treated, with enlarged leaves, thicker stems, and larger and stronger plants, while those not treated were smaller and weaker. And the performance results of the application are early.
