According to one embodiment, a device for distributing and discharging a liquid reagent may be provided. The device may comprise a tank that stores the liquid reagent a pump that draws the liquid reagent from the tank a pipeline connected to the pump to carry the liquied reagent drawn by the pump a distribution unit connected to the pipeline to distribute and discharge the liquid reagent carried by the pipeline and a mechanism that receives the liquid reagent carried by the pipeline and captures air contained in the received liquid reagent.本發明根據一具體實施例,可提供一種用於分配及排放液態試劑的裝置。該裝置可包含:儲存該液態試劑的一貯槽;由該貯槽抽出該液態試劑的一泵浦;連接至該泵浦以運送該泵浦所抽出之該液態試劑的一管線;連接至該管線以分配及排放該管線所運送之該液態試劑的一分配單元;以及一機構,其係接收該管線所運送之該液態試劑以及捕獲所接收之該液態試劑的內含空氣。1‧‧‧插秧機搭載液態試劑之施作裝置2‧‧‧施加單元3‧‧‧施加操作控制裝置3a‧‧‧控制單元4‧‧‧電池10‧‧‧貯槽10‧‧‧視需要貯槽11‧‧‧管線12‧‧‧泵浦14‧‧‧第一管線16‧‧‧第二管線18‧‧‧空氣捕獲室20‧‧‧分配單元22‧‧‧排氣單元25‧‧‧排液單元30‧‧‧圓柱形分配室32‧‧‧第三管線40‧‧‧閥C‧‧‧刮刀
