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Underground Irrigation System and Method and Root Zone Temperature Optimization System
Underground Irrigation/Root Zone Temp. (RZT) Optimization System- a closed cycle heat exchange between water and the soil in underground (2 m) "radiators“ or in boreholes. Uses the water thermal energy and signature to keep plants’ roots temperature range in optimum or semi-optimum level year around. Enhanced food production between 20-240% .experiments increasedroot zone temperatures 11 degrees Celsius constant water underground exchange moderates near roots shaving extreme harmful pick summer winter protects extent plants cold heat damages year green houses open fields maintaining optimum range No energy invested cool circulation pump control board amounts little solar 100% environmentally friendly moderation capable stable loads prevent summerIt preventing ameliorating nights (with waters thermal signature blind pipes) freezing optimal levels helping save (by air heating) non covered plots loop tested three beta sites crops years

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