The CO2 enrichment system is consist of two main components. The CO2 source, how we get CO2 and the component related to how the CO2 is distributed to the greenhouse air. For the first related to CO2 source, we have mainly two sources, either pure CO2 stored in special tanks or CO2 which is obtained from exhaust gas (we use also the term flue gas) which is emitted as a result of the combustion of fuels such as natural gas.
In general, CO2 enrichment decreases the oxygen inhibition of photosynthesis and increases the net photosynthesis in plants. This is the basis for increased growth rates caused by CO2 at low as well as at high light levels. Elevated CO2 concentrations also increase the optimal temperature for growth. Pot plants, cut flowers, vegetables and forest plants show very positive effects from CO2 enrichment by increased dry weight, plant height, number of leaves and lateral branching. Plant quality expressed by growth habit and number of flowers is often enhanced by CO2 enrichment. The rooting of cuttings is often stimulated by high CO2 levels.
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The CO2 enrichment system is consist of two main components. The CO2 source, how we get CO2 and the component related to how the CO2 is distributed to the greenhouse air. For the first related to CO2 source, we have mainly two sources, either pure CO2 stored in special tanks or CO2 which is obtained from exhaust gas (we use also the term flue gas) which is emitted as a result of the combustion of fuels such as natural gas.
In general, CO2 enrichment decreases the oxygen inhibition of photosynthesis and increases the net photosynthesis in plants. This is the basis for increased growth rates caused by CO2 at low as well as at high light levels. Elevated CO2 concentrations also increase the optimal temperature for growth. Pot plants, cut flowers, vegetables and forest plants show very positive effects from CO2 enrichment by increased dry weight, plant height, number of leaves and lateral branching. Plant quality expressed by growth habit and number of flowers is often enhanced by CO2 enrichment. The rooting of cuttings is often stimulated by high CO2 levels.
