The drip irrigation dripper (1) includes a substrate (11) integrally formed of a resin material including a channel portion for securing the channel. The flow path unit includes one or both of an inflow control unit (111) that controls the inflow of the irrigation liquid and a flow rate control unit (112) that controls the flow rate of the infused irrigation liquid. The inflow control unit (111) opens the flow path of the liquid as the pressure of the liquid to flow in increases, and the flow rate control unit (112) opens the flow path of the liquid as the pressure of the inflowed liquid increases. Close. The drip irrigation dripper (1) can stabilize the inflow control and discharge control of the irrigation liquid regardless of the increase or decrease of the pressure of the irrigation liquid, and realizes reduction of manufacturing cost and improvement of manufacturing efficiency. be able to.点滴灌漑用ドリッパ（１）は、流路を確保するための流路部を含む、樹脂材料で一体成形された基板（１１）を備える。流路部は、灌漑用液体の流入を制御する流入制御部（１１１）および流入した灌漑用液体の流量を制御する流量制御部（１１２）の一方または両方を含む。流入制御部（１１１）は、流入すべき液体の圧力の増加に伴って当該液体の流路を開き、流量制御部（１１２）は、流入した液体の圧力の増加に伴って当該液体の流路を閉じる。点滴灌漑用ドリッパ（１）は、灌漑用液体の圧力の増減に関わらず灌漑用液体の流入制御や吐出制御を安定させることができ、かつ、製造コストの削減と製造効率の向上とを実現することができる。
