Patent ID: 6990912

Claim:
An apparatus for introducing a discrete, predetermined amount of a material into soil at a plurality of predetermined points in the soil, comprising: a container for holding the material to be introduced into the soil; tubing in fluid connection with the container at a first end thereof, the tubing having an injection nozzle at a distal end for introducing the material into the soil; at least one shank for placing the distal end of the tubing at a predetermined depth in the soil during introduction of the material into the soil; a switch for controlling flow of the material through the tubing, the switch being operable between an open state for introducing the discrete, predetermined amount of material into the soil at the predetermined points in the soil, and a closed state when the shank is positioned between the predetermined points in the soil; and a source of compressed gas for forcing the discrete, predetermined amount of material through the tubing and into the soil when the switch is in the open state.