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Entry Date
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Location
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Sunday, April 21, 2024
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Matt D.
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Connecticut
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Entry 17 of 116 |
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CO2 Controller (Titan Controls Atlas 8) Reading: 1050ppm
After demonstrating the improvements to plant growth that CO2 enrichment can provide this is something that is a key part of plant growing (assuming other conditions are being maximized). This controller is one that is used from day one of planting until the pumpkin is about 30 days old or so. CO2 enrichment does not improve pumpkin growth (probably because they are mostly water) but it does help improve plant and root growth.
The reason why the day 30 pumpkin growth is not a hard date for CO2 removal is because it does not have to do with the pumpkin itself but more of the plant growth. CO2 is beneficial to plant growth so typically around day 30 for the pumpkin, the plant (at least in my case) is near full size (1,000sq.ft.) so the CO2 is no longer needed.
The target level is about 1,100 ppm and in this early part of the season a 50 lb CO2 bottle will last about one month, compared to the main growing season that same bottle set to the same level will only last 7-10 days.
An advantage of this controller is it can sense when power is sent via the cooling thermostat and will go into an idle mode where it will still provide live readings of the CO2 in the area, but not actively add any until the vents and fans turn off. Then it will add CO2 until the target level is reached.
Article About CO2 in Greenhouse production from 1993:
https://hortscans.ces.ncsu.edu/uploads/c/a/carbon_d_52570d1851c70.pdf
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