METHOD AND DEVICE FOR PROTECTION OF PLANTS AGAINST FROSTS Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: method involves formation and periodic removal of clouds in the plantation zone, said clouds consisting of a mixture of neutral gases at a positive temperature. Density of gases is equal to that of the atmospheric air while the cloud proper is formed above the entire planted area at a preset altitude. The device for creating a cloud of neutral gases has a solar energy accumulator in the form of a cylindrical reservoir 4 and a gas-bottle installation with carbon dioxide gas, a compressor 3 and a delivery pipeline 6. EFFECT: improved functional and operating characteristics. 2 cl, 3 dwg