Dry ice in resevoir

firebrand18rjr

Well-Known Member

Feb 18, 2008

• #1

I just bought 10 lbs of dry ice . good idea to break it up n leave rock chunks on top of the lid or put them in the resevoir and have it pour co2 all over from the inside so it hits the roots.

 

potroast

Uses the Rollitup profile

Feb 18, 2008

• #2

The dry ice would be good if it was over your plants in the daytime. The leaves use it, the roots use oxygen.

HTH

 

L

LERecords

Well-Known Member

Feb 19, 2008

• #3

yea.. don't put it into the resivor, just put it on top or even on top of something, on top of the res... much better for the plants

 

psyclone

Well-Known Member

Feb 19, 2008

• #4

Roots can and do absorb and use CO2 (this is how Marine plants obtain it). I use CO2 generating tablets in my chili plant hydro, with very good results. I wouldn't use dry ice in a res though, just in the atmosphere.

 

D

DJsmooth

Active Member

Feb 19, 2008

• #5

Would getting large blocks of dry ice and just placing them next to plants in an organic indoor grow?

 

email468

Well-Known Member

Feb 20, 2008

• #6

According to this:
SpringerLink - Journal Article

roots (for tomato plants anyway) can use CO2 but the light requirements to gain any benefit are still pretty stiff.