FARM FIELD WATER MANAGEMENT SYSTEM

To provide a farm field water management system that can improve workability while preventing flotation of a controller.SOLUTION: A farm field water management system 10 comprises: a water supply controller 12 equipped with a displacement mechanism; an inlet 104 in which the water supply controller is provided; and an electric actuator which drives the displacement mechanism. Further, a driving device 40 and a controller 42 of the electric actuator are divided, and the controller is mounted on a frame 150. Inside the inlet, a flotation prevention member 160 is provided which is capable of switching over between a flotation prevented state in which flotation of the controller when submerged under water is prevented and a non-flotation prevented state in which taking out of the controller to the outside of the inlet is possible.SELECTED DRAWING: Figure 11 【課題】制御装置の浮上を防止しつつ作業性を向上できる圃場水管理システムを提供する。【解決手段】圃場水管理システム１０は、変位機構を備える送水制御装置１２、送水制御装置が内部に設けられる桝１０４、および変位機構を駆動する電動アクチュエータを備える。また、電動アクチュエータの駆動装置４０と制御装置４２とを分割して、制御装置を架台１５０上に載置すると共に、桝の内部には、制御装置の水没時の浮上を防止する浮上防止状態と、制御装置の桝の外部への取り出しが可能となる非浮上防止状態とに切替可能な浮上防止部材１６０を設ける。【選択図】図１１