PROBLEM TO BE SOLVED: To provide field water management systems that can flexibly respond so that the required amount of irrigation water at a required time can be supplied to the field.SOLUTION: Provided is a field water management system that manages the supply of irrigation water to a field group 10, which is an assembly of a field 1, the system comprising: a water supply amount acquisition unit 21A that acquires water supply information including the amount of water supplied to the field group from an irrigation water management system 30 that adjusts the amount of irrigation water supplied to the field group via a water supply channel, and a field water supply control unit 21B that outputs a water supply command to a water supply apparatus installed in each field so as to supply water to each field where a field water supply request has occurred in a flooding period, the field water supply control unit outputting a water supply command to each field when the water supply amount acquired by the water supply amount acquisition unit is equal to or more than the required water supply amount.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】必要な時期に必要な量の灌漑用水を圃場に給水できるように柔軟に対応できる圃場水管理システムを提供する。【解決手段】圃場１の集合体である圃場群１０に対する灌漑用水の供給を管理する圃場水管理システムであって、給水路を介した圃場群へ灌漑用水の給水量を調整する灌漑用水管理システム３０から圃場群への給水量を含む給水情報を取得する給水量取得部２１Ａと、湛水時に圃場給水要求が発生した各圃場に対して各圃場に設置された給水装置に給水指令を出力する圃場給水制御部２１Ｂと、を備え、圃場給水制御部は、給水量取得部により取得された給水量が必要給水量以上であるときに各圃場に対して給水指令を出力する。【選択図】図３
