Plant anti-frosting method

Abstract

The invention discloses a plant anti-frosting method. The plant anti-frosting method comprises main anti-frosting devices and auxiliary anti-frosting devices. The main anti-frosting devices and the auxiliary anti-frosting devices each comprise a vertical column and an axial flow fan arranged on the top of the vertical column to provide wind power. The height of the axial flow fans of the main anti-frosting devices ranges from 6 m to 15 m, and the height of the auxiliary anti-frosting devices ranges from 4 m to 6 m. The transverse horizontal distance between the two main anti-frosting devices ranges from 10 m to 25 m. It is guaranteed that the height difference H1 between the vertical columns of the auxiliary anti-frosting device and the main anti-frosting devices ranges from 5 m to 10 m. Meanwhile, the auxiliary anti-frosting devices have the lifting amplitude with the height difference of H1, airflow within the height range of 1 m to 5 m can be disturbed, then the effect of the plant anti-frosting system is enhanced, and the influence degree of the anti-frosting effect of the plant anti-frosting method on plants is improved. It is guaranteed that airflow within the 5 m range of the fans and at the 3 m height around the range can be disturbed. Anti-frosting blind regions are eliminated. In addition, the plant anti-frosting effect is improved, the growth vigor and quality of the plants are improved, and the survival rate of the plants is increased.

Description

technical field [0001] The invention relates to the technical field of frost protection for plants, especially tea trees, in particular to a plant frost protection method. Background technique [0002] The growth of plants requires a balanced supply of sunlight, water, soil and other climatic conditions. Especially for the growth of tea trees, the requirements for climate are relatively high. When encountering frosty weather, a large number of tea trees will be frozen to death and it is difficult to survive. With the development of agricultural science and technology, a special intelligent anti-frost system equipment has been developed to treat tea trees with anti-frost treatment. For this kind of equipment, refer to the authorized patent, CN201310288428-a fan system control method for preventing plant frost damage And device and CN101322466B a kind of fan system control method and device for preventing plant frost damage, above-mentioned two patents have disclosed the syste...

AI Technical Summary

Problems solved by technology

The temperature rise effect on the canopy and 3m above it is greater than that at 2m, but frost damage still occurs within 5m in front of the wind turbine. The main reason is that the wind turbine is installed at a high altitude, and there is a large pitch angle, resulting in no air flow in this range Disturbance, so that the cold air in the canopy cannot mix and heat up with the air flow of higher air temperature above

Blind spots in frost protection

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