FIELD: agriculture.
SUBSTANCE: device comprises three serially coupled layers that are tightly joined. Upper layer is arranged as non-transparent and light-absorbing, middle layer - in the form of heat accumulator, material of which has alternating heat conductive properties, and lower layer is arranged as highly heat-conducting. Device contains temperature sensor in the form of controlling thermocouple installed into protected ground and connected to heat accumulator.
EFFECT: device makes it possible to automate monitoring, control and maintenance of required temperature condition of protected ground.
3 dwg
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