Pulsed injection into the ground of liquid fertilizer

Planting – Liquid or gas soil treatment – Injector nozzle situated above soil surface

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Details

111135, 239 99, 25112916, A01C 2302, B05B 108, F16K 3106

Patent

active

049075160

ABSTRACT:
Fertilizer or other liquid crop treatment is applied to the ground using a direct injection jet with a nozzle position closely adjacent the ground and forming a jet of the liquid directed into the ground. A solenoid controlled valve cyclically halts the flow of fluid to form short pulses of the fluid so that the fluid can be supplied in concentrate form while generating sufficient energy to achieve a depth of penetration in the range 2 to 4 inches. The solenoid controlled valve and nozzle is mounted on a skid member carried on a depth control wheel. The period of the pulses is arranged so that the length of a pulse is very short relative to the spacing between the pulses with the spacing between adjacent rows formed by adjacent heads being substantially equal to the spacing between the individual pulses.

REFERENCES:
patent: Re25307 (1962-12-01), Johnston
patent: 1754740 (1930-04-01), Clarkson
patent: 3012526 (1961-12-01), Baldwin et al.
patent: 3435785 (1969-04-01), Hurbolt
patent: 3521819 (1970-07-01), Johnston
patent: 3736890 (1973-06-01), Barnes
patent: 3986672 (1976-10-01), Smith et al.
patent: 4182247 (1980-01-01), Talbott

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