Measures to improve the efficiency of photo-cooperation

more measures to improve the efficiency of photocodesi, one of the following is introduced: appropriately increase the content of CO2.
We know that the amount of CO2 in the air is generally 330mg/L, which is a far cry from the most suitable CO2 content (1000mg/L) for photo-co-operation of crops, especially in the case of dense planting, fertilizer and water, crops need more CO2. Obviously, only relying on the diffusion effect formed by the difference in the content of CO2 in the air to supplement CO2, far from meeting the needs of crops for photocodynic co-operation. Good ventilation allows a large amount of air (including CO2) to flow through the leaf surface, which is obviously conducive to the normal conduct of photocodying.
scientific experiments have shown that increased levels of carbon dioxide in the air can increase the amount of carbon dioxide in the gap between leaf meat cells, which is conducive to the obtaining of carbon dioxide by the leafy greens, and thus to the conduct of photogenics. Increased carbon dioxide content in the air will also increase the activity of 1,5-Dphosphate naloxone glycoxylase, thereby enhancing the ability to fix carbon dioxide for photocodescing and reducing the intensity of photorespiration, which is also conducive to photochroading. Production practice shows that rice can increase its yield by 29% if the amount of carbon dioxide in the air is increased from 0.03% to 0.09% before rice is spiked.
The effect of increased carbon dioxide content in the air on photocodychroidism in C3 plants is much greater than on photocodychroidism in C4 plants, as high levels of carbon dioxide increase the activity of 1,5-Dphosphate glycosterase, enhance the binding capacity of 1,5-DSphosphate to carbon dioxide, and inhibit light respiration. Experiments show that the yield of some C3 plants can be increased by about 30%, while the yield of C4 plants such as corn and sorghum can be increased by only about 9%, and the biological yield of C4 plants such as rice grass has even decreased.
There are three measures to improve the content of CO2 in farmland



: first, to control the density of crops and water fertilizer management, so that the later stage of farmland ventilation is good;
it must be emphasized that an unlimited increase in the amount of CO2 in the air worldwide would contribute to the emergence of the "greenhouse effect". We know that the energy that the sun radiates to Earth could have been re-radiated into space by the atmosphere in the form of infrared light. However, CO2 in the atmosphere can absorb infrared light strongly. In this way, with the increasing level of CO2 in the atmosphere, solar radiation in the atmosphere will be "easy to get out", so that the earth as a greenhouse gradually warm, which will lead to melting glaciers, sea surface rise and climate anomalies. It can be seen that the increase of CO2 in farmland should also be appropriate to avoid promoting the "greenhouse effect".
reduces the intensity of light respiration C3 plant light breathing is obvious. For C3 plants, light breathing inhibitors can be used to reduce the intensity of light breathing. For example, spraying soybeans with a certain concentration of NaHSO3 can reduce the intensity of soy light breathing by nearly one-third, thus increasing soybean yield.
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