Deep subsoil plows have up to seven spikes separated by three feet to cut a 21 foot swath in each pass.  This unit is normally pulled through fields at three miles per hour covering an acre one hour.  The CO2 need per growing season is 8.2 tons/acre in two or three applications, 4.1 tons/hour in two or 2.73 tons for three.  The machines will thus need between 22 and 33 tons of CO2 per day for corn.

A subsoil plow can be used with carbon powder or slurry putting CO2 in to a deep level, but the material should be distributed at all levels.   We would expect this treatment to be done only once as carbon does not oxidize or migrate in soil. The presence of the elementry carbon will help water and CO2 retention as it is one of nature's better adsorbers.  We have no standards for carbon amendment, but suspect any working soill can take up to 10% without any trouble, but never expect to see that amount applied other than experimentally.

Subsoil plows are used to loosen deep soil, bring it up and channel moisture to lower levels in the early season.  Existing subsoil point plows need little more than trailing edge gas nozzles to deliver the CO2 and carbon powder or slurry.

Articulated Intra-Row Injectors

Field and row crops could also use mechanized injectors designed to run between rows with wheel-mounted articulated nozzle injectors entering and leaving the ground as the wheel rolls forward.  These could be used during the growing season to maintain soil carbon dioxide levels while doing a weeding or low level insecticide spraying operation.  And, they could be an entry-level system for farmers wanting to experiment before they believe what they’ve seen on television and read in agricultural publications.