Soil moisture control system and method

Details Soil moisture control system and method Soil moisture control system and method

1988-01-11

1989-01-10

Chambers, A. Michael

Fluid handling

Ambient condition change responsive

For controlling soil irrigation

13762411, 239 64, A01G 2516

Patent

active

047966548

ABSTRACT:
Soil moisture control system senses subsoil moisture by AC conductivity and turns on irrigation valve when the sensor indicates the need for additional moisture. An adjustment is connected to the sensor to adjust the level at which adequate soil moisture is signaled.

REFERENCES:
patent: 3105214 (1963-09-01), Blythe et al.
patent: 3991375 (1976-11-01), Riggs et al.
patent: 4194691 (1980-03-01), Birnbach et al.
patent: 4304989 (1981-12-01), Vos et al.
patent: 4613764 (1986-09-01), Lobato
patent: 4657039 (1987-04-01), Bireley et al.
patent: 4693419 (1987-09-01), Weintraub et al.

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