LibraryGardeningMethod and apparatus using soil conductivity thresholds to control irrigating plants
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Method and apparatus using soil conductivity thresholds to control irrigating plants

US-7546181-B2

Abstract

Method and apparatus determining the water absorption gradient and controlling the irrigation system based upon the water absorption gradient. The means for determining uses at least a first electrical coupling and a second electrical coupling, which electrically couple with a first probe and a second probe, placed in the soil near the at least one plant.

Patent figures(8)

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