In recent years, the soil drench technique has become popular among organic gardeners, as a way to infuse live microbes and nutrients into the soil around plant roots. The challenge presented by this method is that there is no accurate way to determine the depth to which solutions actually penetrate the root ball. For this reason, Dr. Elaine Ingham, world-renowned micro-biologist and President of Soil Food Web, commissioned Gro-King Garden Sprayers to design and build a Deep Root Injector, to her exact specifications. The result is a high-grade stainless steel tool that is interchangeable with the TRW Spray Gun via the use of matching quick-connect fittings. The Injector has a 42” rod and a sharp, cone-shaped tip with four equidistant holes, through which solutions can easily be dispensed deep into the root ball and surrounding soil.
