The disclosure utilizes a thermoelectric cooling chip (TEC) to increase or decrease the temperature of water source for supplying water through the sprayer or irrigation heads to the plant. Alternatively, the TEC can be utilized to increase or decrease the temperature of soil around plant roots through heat conduction. A plant temperature adjustment system includes a heat preservation assembly having a tank filled with liquid, a temperature adjusting apparatus having a TEC, and a spraying apparatus connecting to the tank for spraying the liquid to an environment with plants. The temperature of the liquid in the tank can be increased or decreased through the hot side or the cold side of the TEC. Another plant temperature adjustment system includes a hollow metal pipe/tube placed adjacent to the soil around plant roots, and a temperature adjusting apparatus having a TEC, wherein the hot side or the cold side of the TEC is directly connected to the hollow metal pipe/tube, or alternatively communicated to a liquid for increasing or decreasing the liquid temperature. Hot or cold liquid is pumped into the hollow metal pipe/tube to increase or decrease the temperature of soil around plant roots through heat conduction.本揭露利用致冷晶片對供給滴灌或噴霧之水源作降溫或升溫,或利用熱傳導對植栽根部土壤作降溫或升溫。一種植栽溫度調整系統包括一保溫組件具有承裝液體之容器;一溫度調整裝置包括致冷晶片,且其冷端與熱端之一者係使液體降溫或升溫;和一噴霧裝置,連接容器以噴灑液體至設有植栽的環境中。另一種植栽溫度調整系統包括鄰近植栽根部土壤設置之金屬空心管,以及包括致冷晶片之溫度調整裝置,其中致冷晶片之冷端與熱端之一者直接連接金屬空心管;或是以致冷晶片致使液體降溫或升溫並流入置於土壤上的金屬空心管內,使根部土壤溫度下降或上升。11‧‧‧溫度調整裝置13‧‧‧保溫組件15‧‧‧噴霧裝置
