CO2 gas vs liquid carbon

i am debating on using liquid carbon instead of co2 gas for my garden can i get some feedback on pros and cons of each Thanks

never heard of liquid carbon

If you are meaning LCO2, liquid carbon dioxide, or dry ice? LCO2 may be cheeper.

p.s. some fire extinguishers contain liquid co2.

what exactly do you mean by "liquid carbon"

to be honest i read this page and i was curious to see if anyone knew about liquid carbon cuz i never heard about it before check out this link but it seems like i should just give my garden co2 the old fashiond way in a tank http://www.simplyhydro.com/carbon_liquid.htm

i also stumbled upon this page and cannot find anything else on the web having anything to do with it or related to it. All other things that talk about it talk about using dry ice in the room; using it in the solution will kill the plant...
don't think anyone is really researching this yet..