Cold gas system for fumigating soil
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United States of America Patent
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Oct 19, 2021
Grant Date -
Sep 19, 2019
app pub date -
Mar 13, 2019
filing date -
Mar 13, 2018
priority date (Note) -
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Abstract
A system for fumigating soil includes applying a fumigant film component and an underlying drip tape element to the soil to be treated. A non-tarp method can also be used through permanently buried drip tape (SDI) that is at least 8 inches deep and utilizes the soil above as the barrier to prevent the fumigant from escaping. The drip tape element is communicably connected through a throttle valve to a pressurized liquid supply of fumigant having a low boiling point and a high vapor pressure. The valve is opened to dispense vaporized fumigant into the soil and dissipation of the fumigant is controlled so that more effective soil fumigation is achieved.
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