Planting – Liquid or gas soil treatment – Hand manipulated
Patent
1983-10-13
1985-09-03
Hafer, Robert A.
Planting
Liquid or gas soil treatment
Hand manipulated
172166, A01L 2300
Patent
active
045385327
ABSTRACT:
An anhydrous ammonia fertilizer applicator for applying fertilizer to the root system of Bermuda grass and the like and which includes a rolling coulter which will cut through Bermuda grass roots, debris and the like in front of an applicator knife disposed in immediate trailing relation to the rolling coulter. The applicator knife includes a hose or pipe connected to the rear edge thereof and adapted to be communicated with a source of supply of anhydrous ammonia fertilizer for discharging the fertilizer closely adjacent the bottom of the slot or groove formed in the soil by the rolling coulter so that the anhydrous ammonia fertilizer will not "gas out" and escape as might occur if uncut roots, debris and the like form a relatively wide trench in the soil surface which would permit the anhydrous ammonia fertilizer to easily vaporize into a gas and escape from the soil thus producing no benefit to the root system of Bermuda grass and the like. A unique mounting system is provided for the coulter and knife to support a plurality of such assemblies from a tool bar or other supporting structure carried from a farm tractor or the like by conventional mechanism to enable the elevational position of the applicator to be varied in relation to the ground surface.
REFERENCES:
patent: 3237577 (1966-03-01), Wilkins
patent: 3292562 (1966-12-01), Clark
patent: 3542137 (1970-11-01), Mai
patent: 3745944 (1973-07-01), Yetter et al.
patent: 3752092 (1973-08-01), Vinyard
patent: 3752238 (1973-08-01), Chilton
patent: 3799079 (1974-03-01), Dietrich
DeMille Danton D.
Hafer Robert A.
Jacobson Harvey B.
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