Was checking out Current Culture's website and their recommended graph which is pretty cool.
General Recommendations - Current Culture H2O
I was pretty shocked to see that they are suggesting a decrease in CO2 PPM progressively from week 2 onward. This is contrary to everything I have done in the past and things I have read elsewhere. So many of the grows I know don't even use CO2 augmentation in veg that it's really blowing my mind.
Now I have been doing this a long time, studied plenty of scientific studies which do indeed show that CO2 usage is proportional to temperature. In fact if you run your room in the 70's having anything above 1000ppm is useless. But, run your room in the upper 80's or even low 90's and high PPM's are essentially a requirement.
CO2 Science
Now CCH2O also is keeping those temps down low and getting them lower as time goes on. Again, this is opposite what I have done in the past and learned from others. Seeing the science of CO2 and it's effects at higher temps, I am questioning the wisdom of growing in the mid 70's during critical flower production time especially when you are chilling your water.
Can anyone give any feedback on having higher PPM's and temps in Veg and lowering it in flowering???
General Recommendations - Current Culture H2O
I was pretty shocked to see that they are suggesting a decrease in CO2 PPM progressively from week 2 onward. This is contrary to everything I have done in the past and things I have read elsewhere. So many of the grows I know don't even use CO2 augmentation in veg that it's really blowing my mind.
Now I have been doing this a long time, studied plenty of scientific studies which do indeed show that CO2 usage is proportional to temperature. In fact if you run your room in the 70's having anything above 1000ppm is useless. But, run your room in the upper 80's or even low 90's and high PPM's are essentially a requirement.
CO2 Science
Now CCH2O also is keeping those temps down low and getting them lower as time goes on. Again, this is opposite what I have done in the past and learned from others. Seeing the science of CO2 and it's effects at higher temps, I am questioning the wisdom of growing in the mid 70's during critical flower production time especially when you are chilling your water.
Can anyone give any feedback on having higher PPM's and temps in Veg and lowering it in flowering???