Carbon dioxide gas fertilizer affects yield and plant

According to the China Agricultural Information Network, the application of carbon dioxide fertilizer has different effects on the yield of different vegetables. Cucumber, tomato and summer squash are three kinds of common vegetables. According to the actual situation, CO2 is applied to these three kinds of vegetables respectively. Fertilization experiment, the effect of increasing production is very significant. Three kinds of vegetables were respectively given a carbon dioxide concentration of 1,000 mg/kg, cucumbers increased by 465.5 kg per 667 square meters, an increase of 27.1 %; tomatoes averaged 410.7 kg per 667 square meters, an increase of 23.6%; and zucchini increased by 373.2 kg per 667 square meters. , Increase production by 21.9%.

Effects of carbon dioxide application on the traits of vegetable plants: After application of carbon dioxide in plastic greenhouse vegetables, the plant traits were significantly better than those not applied. After cucumbers were treated with carbon dioxide, the plants grew well. Plants that were applied were 15-20 cm more than those that were not applied. They were 2-3 leaves longer and the leaves were significantly larger and thicker. The leaf area per plant was 0.19-0.3 square meters, which was earlier than 2 plants. In the node position, the fruit set rate is high, and the number of single plants is 3 to 5, the melon strips are dark green, and the top 4 to 5 cm of the melon strips are yellow. Moreover, the application of carbon dioxide gas fertilizer can also enhance the plant's ability to resist cold and disease. After applying carbon dioxide to tomatoes, the plants increased significantly, the thick green leaves became thicker, the fruits matured earlier, and the surface of the fruits became bright. The change of the long phase of the carbon dioxide in the zucchini was significantly greater than that of the non-application of the zucchini. The applied leaves were hypertrophic, the stem was thick, the plants were large and strong, and the non-applied plants were small and weak. And Shi's performance was early.

Since the application of carbon dioxide fertilizer has different effects on the yield of different vegetables, how can we monitor and control the concentration of carbon dioxide gas fertilizer? We can use the carbon dioxide gas detector for agriculture to detect the concentration of carbon dioxide gas, and can control the linkage of external equipment such as ventilation fans, carbon dioxide cylinder valves, etc. to obtain the optimum gas fertilizer concentration for vegetable growth.

The carbon dioxide detector AT-CO2-X for waterproof greenhouses adopts imported infrared carbon dioxide sensor, which is specially used in occasions where it is necessary to measure the CO2 concentration of carbon dioxide by water. The water-proof CO2 detector adopts multiple protections to ensure that the internal sensors are not affected by environmental conditions such as high humidity, and can continue to work in environments such as moisture, darkness, condensation, moisture, and fog.

Carbon dioxide detector for waterproof greenhouses Technical parameters:

1, using infrared sensors, more than 10 years of working life

2, range: 0 ~ 2000ppm, 0 ~ 3000ppm, 0 ~ 5000ppm, 0 ~ 9999ppm

3, detection resolution: ± 10ppm

4, measurement accuracy: ± 5%

5, repeat accuracy: ± 1%

6, shell material: aluminum alloy protective shell

7, shell size: 760 × 90mm

8, the whole weight: 200g

9, protection class: IP65

10, working environment temperature: 0 ~ 50 °C

11, working environment humidity: 0 ~ 100% RH

12, analog signal output: 4 ~ 20mA linear output

13, working voltage: 24VDC

14, the power supply is not less than 1.6W

Carbon dioxide is one of the raw materials for photosynthesis of green plants, and it is also an important factor that affects crop yield. The cultivation of plastic greenhouses keeps the crops in a relatively closed place for a long period of time. The concentration of carbon dioxide in the greenhouse varies greatly within one day.

A maximum of 1000 to 1200 ppm before sunrise and about 100 ppm at 2.5 to 3 hours after sunrise, which is only about 30% of the atmospheric concentration (330 ppm), and it stays up until 2 hours after noon before it starts to rise until the afternoon. At about 4 o'clock, it returned to atmospheric level. The carbon dioxide concentration required for vegetables is generally 1000 to 1500 ppm. Therefore, the shortage of carbon dioxide in plastic greenhouses is quite serious and has become an important factor affecting the output of plastic greenhouse vegetables. The installation of a carbon dioxide monitor in a plastic greenhouse can ensure that the carbon dioxide monitor can promptly alarm when the concentration is insufficient, thus using gas fertilizer. Ensure that vegetables, edible fungi, flowers, Chinese medicine, etc. are available in the morning, with high quality and high yield.