PROBLEM TO BE SOLVED: To provide a watering device which can quickly water the root of a seedling in a large amount at a low pressure and in the width of a ridge, when the seedling is planted or when soil is dried.SOLUTION: Water flowed down from a hose or pipe 4 is collided with a plate to weaken the force of the water, just before flowing out on the surface of the soil, and then watered. An upper disk 1 having a hole is fixed to the pipe 4, and a lower somewhat small disk 6 is held to be slid upward and downward. When the lower disk 6 is adequately lowered and the water is applied, a narrow area can be watered, and when the lower disk is upward lifted, a wide area can be watered.COPYRIGHT: (C)2012,JPO&INPIT【課題】苗を植えた時と、土が乾燥したときに、早く多量の水を根元に低圧で、潅水することと、畝の巾に合わせて潅水できること。【解決手段】ホース又はパイプ4から流し落とす水を土の表面に流す直前で、板に当て、水勢を取ってから、潅水する。穴を開けた上の円盤1をパイプ4に固定し、その下にやや小さい円盤6を上下にスライドするように保持して、下の円盤6を適当に下げて、潅水すると狭く潅水し、上に上げると、広く潅水することができる。【選択図】図1