Climate control is of primary importance in mushroom growing. There are several parameters that can affect and need to be kept in a very narrow range during different stages of the production process in order to guarantee the quality of the mushrooms.
CO2 as most important parameter
One of the most important parameters, which needs strict control in mushroom or spawn production, is the CO2 concentration in the air. Yes, CO2 analysis in mushroom farming plays a very vital role. CO2 is measured in ppm and is the major factor for obtaining good quantity, quality, and size of the produced mushrooms. The values of this parameter vary for different kinds of mushrooms.
Normally, during spawn run, the level of CO2 concentration may reach very high levels – it may surpass the number of 10 000 ppm. While these CO2 values are acceptable at this phase, they must be seriously decreased during the next stages of growth.
CO2 concentrations for mushroom
For white mushrooms for instance, during pin heading and fruit body development, the values of the CO2 concentration may vary somewhere between 1200-1500 ppm. When the pin reaches 1 cm in height, its cap and stem must be equal in diameter. If the cap is smaller than the stem, then this is an indication that the aeration is not enough and CO2 concentration is above the norms. On the other hand, if the cap is bigger than the stem, this means that the quantity of fresh air in the room is more than the necessary volumes.
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