Patent ID: 8528251

Claim:
A device for oxygen enrichment of a soil comprising a vertical tube including a plurality of apertures along said vertical tube; a handle rigidly connected to an upper end of said vertical tube of said device for oxygen enrichment of said soil; a plurality of soil loosening means installed in a lower end of said vertical tube, wherein said plurality of soil loosening means are vertically spaced and installed perpendicularly to an axis of said vertical tube, wherein the length of each of said plurality of soil loosening means is larger than an outside diameter of said vertical tube, so that at least one end of each of said plurality of soil loosening means extends over an outside surface of said vertical tube; a tubular connecting means including a vertical portion, wherein said vertical portion comprises at least one slot, said slot being horizontally oriented, and wherein said lower end of said vertical tube is inserted into said vertical portion of said tubular connecting means to allow clockwise and counterclockwise pivotal movements of said vertical tube within said vertical portion, and wherein said at least one end of the lowermost one of said plurality of soil loosening means is unobstructedly located within and moves along said at least one slot so that the clockwise and counterclockwise movements of said vertical tube are limited by a length of said at least one slot; a horizontal portion angled 90° to said vertical portion of said tubular connecting means; a horizontal tube including a plurality of apertures along said horizontal tube, wherein said horizontal tube is rigidly connected to said horizontal portion of said tubular connecting means.