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Tea tree, or (by freezing frost damage avoidance) of fruit trees and the growth development and growth protection device, the control method
Tea tree, or (by freezing frost damage avoidance) of fruit trees and the growth development and growth protection device, the control method
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机译:茶树或(通过避免冻霜破坏)果树以及生长发育和生长保护装置,控制方法
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摘要
The present invention conventional, than the accumulated temperature using a set temperature was determined, fan (frost fan) Toka, how to start a means of freezing frost damage for the avoidance of the sprinkler or the like was not. The invention relates to the presence or absence of inversion layer exists Construction / field of growing system on the basis of the temperature integrated value of the crop, understanding, for example, to determine the set temperature and growth stage by using the accumulated value, a setting temperature, by the command of the control unit for comparing the field current temperature, fan, and / or control of the fan heater, or the control of the sprinkler, which is selectively operable to constitute.FIELD 1
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