Injection tip for liquid distribution in a turf rootzone

摘要

A pulsed injection system for injecting a stream of high pressure liquid into the ground is used for distributing liquid in a turf root zone. Each nozzle of the apparatus includes one or more nozzle openings which are arranged at an angle to the vertical so that the stream generated is not vertical but instead projects outwardly from the nozzle with a partly horizontal component of direction. This direction maximizes the distance traveled through the root zone of the turf to kill maximum numbers of parasites and also, particularly when the number of openings per nozzle is increased to four provides a maximum blanket of the injected liquid in an expansion zone of each jet with minimum spaces between the expansion zone and maximum coverage. This blanket is used particularly with herbicide injection to prevent weeds growing through the herbicide into the turf.