it sublimates, it doesnt evaporate. anyway, i'd think that assuming the water you dropped it in was warmer than the air it would possibly make it faster...i'm not sure. if you're trying to make Co2 for your plant though, i'd think this would most likely end up being a very expensive technique if you are going to do it enough to make a difference...
If It Disappears Its Evaporating.and Every Time I Give Them A Dose They Grow A Good Inch.i Was Just Curious If I Get A Better Dose In The Water.
it doesnt disappear, it changes state. a solid to gas state change is called sublimation. a liquid to gas change is evaporation. most solids melt (turn from solid to liquid) before going to the gas state, but not in the case of dry ice. regardless CO2 is heavier than air and will sink. even if it changes to gas with more rapidity when dunked in water, you won't end up with more gas than you otherwise would.
Thanks I Was Just Curious Because The Water Deal Really Steams Up The Closet But It Doesn't Last Long So Is One Dose That Way Better Than Placing 3 Or 4 Pounds Of Chunks Letting Sub For A Couple Hours.
i wouldn't use it at all personally. i dont know anything about growing pot, but i know that coming in contact, even accidentally, with dry ice will be quite damaging to a plant, regardless of what type of plant it is. i just wouldn't risk getting it that close to the plant. but i'm sure the speed with which it gets the CO2 isn't so important as the fact that it's getting any at all. if anything slower would be better because the plant has more time to use it before its all gone, leaked out the closet door or whatever. btw, don't you get tired of hitting extra buttons to capitalize the first letter of every word?
IF YOU WRITE IN ALL CAPS IT WILL DO THAT......but besides the point i use dry ice, and i go through a 5lb block in about 4 days, so i usually give my plants dry ice every ten days.....i put it ina styrafoam cooler and just take a srew driver, and i poke a hole in each side and two ont he top and then leave it in a shelf in my closet, usually the first day or two they grow about 3 in...so thats the way the indoor bible has stated it. and thats the way i am using it and it works fine for me.........but dry ice isnt that cheap around here........grrrrrr
To be effective, CO2 must be administered from above the plant (it's heavier than air). You also need a sealed growspace. Using dry ice for CO2 augmentation is not cost effective. Factoring in the cost of dry ice throughout a grow and the fact that all dry ice does is speed up the growth process a bit (vs. flo-through ventilation), you'd be better off to spend your $$ on pot than dry ice. Extra CO2 does no good during lights off.
