Abstract: An apparatus for simultaneously drilling multiple holes in the earth in a selected pattern and dispensing a selected quantity of fertilizer into each hole. A support adapted to be carried by a vehicle, such as a farm tractor, carries two frameworks parallel to the vehicle track and selectively spaced from the vehicle track centerline. Each framework carries a carriage on which plural drilling assemblies are mounted. The positions of the drilling assemblies relative to each other is adjustable. The carriage is vertically moveable to allow the drilling assemblies to simultaneously drill plural holes. A dispensing assembly on the framework includes an adjustable metering device for dispensing a selected quantity of fertilizer into each hole.

Abstract: An apparatus for fertilizing soil includes a frame, a fertilizer storage canister and an earth drilling assembly which is movable relative to the frame and has a fluted, substantially vertical auger element. According to one aspect of the invention, a guide tube is provided to perform the dual function of guiding the auger element during drilling and guiding fertilizer into the hole once the auger element has been withdrawn. A second aspect of the invention regards a pre-measuring device which meters a predetermined amount of fertilizer into the guide tube upon actuation by an operator.

Abstract: A combination spot seeder and tree harvesting mechanism which has a cylindrical seed canister with a top filler opening and a bottom dispensing opening. The spot seeder has a shaft with a seed pocket milled in it which shaft is slideably fitted within the dispensing opening for movement between a retracted position with the seed pocket inside the seed canister and an extended position with the seed pocket outside the seed canister. The seed pocket and the dispensing opening both have rounded edges to minimize damage to the seeds as the seed pocket is closed off by the dispensing opening. The spot seeder is mounted on a feller-buncher head, and the shaft is activated by each cutting stroke of the feller-buncher head.

Abstract: An injection implement for introducing chemicals to subsurface areas which includes a ground penetrating bit and a fluid injector which are hydraulically operated so as to slectively penetrate the earth's surface and which also includes a chemical supply circuit and tamping mechanism for initially introducing chemcials to the injector under pressure and thereafter closing the opening in the earth's surface created by the penetrating bit and fluid injector so as to prevent the escape of chemicals to the atmosphere.