NaturallyAspirated Posted July 2, 2019 Share Posted July 2, 2019 Circuit python is taking over! Neal Quote Link to comment Share on other sites More sharing options...
Rod Posted July 3, 2019 Share Posted July 3, 2019 There’s big anti science push to “prove” that c02 isn’t beneficial for plants Quote Link to comment Share on other sites More sharing options...
Pete Posted July 3, 2019 Share Posted July 3, 2019 digi calipers suck balls Quote Link to comment Share on other sites More sharing options...
Carlos Danger Posted July 3, 2019 Share Posted July 3, 2019 If you really want to get your measuring Nerd going you need one of these. We have three of these around the shop and they are pretty handy. Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 3 hours ago, Duke KaBoom said: There’s big anti science push to “prove” that c02 isn’t beneficial for plants There’s a proper combination of Co2/temperature/sunlight. Excess Co2 when the other two aren’t optimum will damage a plant. Marijuana grower 101. Things aren’t as simple as you typically try and make them. Quote Link to comment Share on other sites More sharing options...
Pete Posted July 3, 2019 Share Posted July 3, 2019 46 minutes ago, Carlos Danger said: If you really want to get your measuring Nerd going you need one of these. We have three of these around the shop and they are pretty handy. we have a FARO arm its pretty cool Quote Link to comment Share on other sites More sharing options...
Rod Posted July 3, 2019 Share Posted July 3, 2019 3 minutes ago, spin_dry said: There’s a proper combination of Co2/temperature/sunlight. Excess Co2 when the other two aren’t optimum will damage a plant. Marijuana grower 101. Things aren’t as simple as you typically try and make them. We’re nowhere near those levels though Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 10 minutes ago, Duke KaBoom said: We’re nowhere near those levels though Co2 levels have gone from 300ppm to 420ppm since 1950. We’re getting there. Quote Link to comment Share on other sites More sharing options...
irv Posted July 3, 2019 Share Posted July 3, 2019 8 minutes ago, Duke KaBoom said: We’re nowhere near those levels though No kidding!! Right from the Gov't of Ontario website. For the majority of greenhouse crops, net photosynthesis increases as CO2 levels increase from 340–1,000 ppm (parts per million). Most crops show that for any given level of photosynthetically active radiation (PAR), increasing the CO2 level to 1,000 ppm will increase the photosynthesis by about 50% over ambient CO2 levels. For some crops the economics may not warrant supplementing to 1,000 ppm CO2 at low light levels. For others such as tulips, and Easter lilies, no response has been observed. Ambient CO2 level in outside air is about 340 ppm by volume. All plants grow well at this level but as CO2 levels are raised by 1,000 ppm photosynthesis increases proportionately resulting in more sugars and carbohydrates available for plant growth. Any actively growing crop in a tightly clad greenhouse with little or no ventilation can readily reduce the CO2 level during the day to as low as 200 ppm. The decrease in photosynthesis when CO2 level drops from 340 ppm to 200 ppm is similar to the increase when the CO2 levels are raised from 340 to about 1,300 ppm (Figure 1). As a rule of thumb, a drop in carbon dioxide levels below ambient has a stronger effect than supplementation above ambient. http://www.omafra.gov.on.ca/english/crops/facts/00-077.htm Quote Link to comment Share on other sites More sharing options...
Rod Posted July 3, 2019 Share Posted July 3, 2019 6 minutes ago, spin_dry said: Co2 levels have gone from 300ppm to 420ppm since 1950. We’re getting there. Yeah in about 600-1000 years at this rate Quote Link to comment Share on other sites More sharing options...
Rod Posted July 3, 2019 Share Posted July 3, 2019 6 minutes ago, irv said: No kidding!! Right from the Gov't of Ontario website. For the majority of greenhouse crops, net photosynthesis increases as CO2 levels increase from 340–1,000 ppm (parts per million). Most crops show that for any given level of photosynthetically active radiation (PAR), increasing the CO2 level to 1,000 ppm will increase the photosynthesis by about 50% over ambient CO2 levels. For some crops the economics may not warrant supplementing to 1,000 ppm CO2 at low light levels. For others such as tulips, and Easter lilies, no response has been observed. Ambient CO2 level in outside air is about 340 ppm by volume. All plants grow well at this level but as CO2 levels are raised by 1,000 ppm photosynthesis increases proportionately resulting in more sugars and carbohydrates available for plant growth. Any actively growing crop in a tightly clad greenhouse with little or no ventilation can readily reduce the CO2 level during the day to as low as 200 ppm. The decrease in photosynthesis when CO2 level drops from 340 ppm to 200 ppm is similar to the increase when the CO2 levels are raised from 340 to about 1,300 ppm (Figure 1). As a rule of thumb, a drop in carbon dioxide levels below ambient has a stronger effect than supplementation above ambient. http://www.omafra.gov.on.ca/english/crops/facts/00-077.htm Yup. Even 1500 is really good. The demonization of c02 is kinda odd considering we had to put more in the atmosphere because the earth was near death because of a lack of atmospheric c02 Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 (edited) 7 minutes ago, Duke KaBoom said: Yeah in about 600-1000 years at this rate Lots of potential variables. Which first and foremost is if the oceans can continue to absorb the same amount of throw off Co2. Edited July 3, 2019 by spin_dry Quote Link to comment Share on other sites More sharing options...
Rod Posted July 3, 2019 Share Posted July 3, 2019 Just now, spin_dry said: Lots of potential variables. Which first and foremost is if the oceans can continue to absorb the Sam amount of throw off Co2. And considering or c02 emissions stay the same or lower like the US has been because of the fracking revolution Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 1 minute ago, Duke KaBoom said: And considering or c02 emissions stay the same or lower like the US has been because of the fracking revolution Oceanic absorption rate has dropped 10% since 2000. Quote Link to comment Share on other sites More sharing options...
Gold Member BOHICA Posted July 3, 2019 Gold Member Share Posted July 3, 2019 CO2 deficient atmosphere would be devastating to life on earth as we know it. The same can’t be said for a CO2 rich atmosphere..... Quote Link to comment Share on other sites More sharing options...
NaturallyAspirated Posted July 3, 2019 Author Share Posted July 3, 2019 1 hour ago, Carlos Danger said: If you really want to get your measuring Nerd going you need one of these. We have three of these around the shop and they are pretty handy. Bit pricey I'd bet! Neal Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 1 minute ago, BOHICA said: CO2 deficient atmosphere would be devastating to life on earth as we know it. The same can’t be said for a CO2 rich atmosphere..... That’s an odd thing to comment on. I haven’t read anything Co2 deficient concerns. Quote Link to comment Share on other sites More sharing options...
Gold Member BOHICA Posted July 3, 2019 Gold Member Share Posted July 3, 2019 Just now, spin_dry said: That’s an odd thing to comment on. I haven’t read anything Co2 deficient concerns. We could unlock and release all new the CO2 locked away during and after the Jurassic period and be better off. do they use CO2 generators in weed grow operations? Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 2 minutes ago, BOHICA said: We could unlock and release all new the CO2 locked away during and after the Jurassic period and be better off. do they use CO2 generators in weed grow operations? Humans were happy during the Jurassic period. That was like 5000 years ago. Quote Link to comment Share on other sites More sharing options...
Carlos Danger Posted July 3, 2019 Share Posted July 3, 2019 47 minutes ago, Pete said: we have a FARO arm its pretty cool We have a Faro arm that we no longer use. The smaller the arm the more accurate they become. Most are good for a half thousands or better. I think the big one with the laser gun is 35k or more. Quote Link to comment Share on other sites More sharing options...
Rod Posted July 3, 2019 Share Posted July 3, 2019 52 minutes ago, spin_dry said: Oceanic absorption rate has dropped 10% since 2000. That’s normal as we come out of the ice age Quote Link to comment Share on other sites More sharing options...
Rod Posted July 3, 2019 Share Posted July 3, 2019 48 minutes ago, spin_dry said: That’s an odd thing to comment on. I haven’t read anything Co2 deficient concerns. It was down as low as 180 ppm. Plant growth stops around 150 ppm Quote Link to comment Share on other sites More sharing options...
Gold Member BOHICA Posted July 3, 2019 Gold Member Share Posted July 3, 2019 43 minutes ago, spin_dry said: Humans were happy during the Jurassic period. That was like 5000 years ago. In marijuana grow operations do they artificially raise CO2 at times? Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 12 minutes ago, BOHICA said: In marijuana grow operations do they artificially raise CO2 at times? That’s already covered here. Quote Link to comment Share on other sites More sharing options...
spin_dry Posted July 3, 2019 Share Posted July 3, 2019 16 minutes ago, Duke KaBoom said: That’s normal as we come out of the ice age Nope Quote Link to comment Share on other sites More sharing options...
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