PROBLEM TO BE SOLVED: To provide a crop information management system that is effectively utilizable in next fertilizer application.SOLUTION: A harvester is provided with field specification means, working state input means, harvest information detection means and a harvester-side controller, a terminal is provided with a terminal-side controller, and at least one of the harvester and the terminal is provided with fertilizer input means. The terminal-side controller stores harvest information transmitted from the harvester and fertilizer information input by the fertilizer input means, in association with field information, and then determines, in units of fields, the suitability of a fertilizer applied on the basis of a crop yield per unit area that is calculated on the basis of the harvest information and the field information.COPYRIGHT: (C)2015,JPO&INPIT【課題】次回の肥料散布の際に有効利用し得る農作物情報管理システムを提供する。【解決手段】収穫機に圃場特定手段、作業状態入力手段、収穫情報検出手段及び収穫機側制御装置が設けられ、端末機に端末機側制御装置が設けられ、収穫機及び端末機の少なくとも一方に肥料入力手段が設けられる。端末機側制御装置は、収穫機から送られてくる収穫情報及び肥料入力手段によって入力された肥料情報を圃場情報に関連付けて記憶し、収穫情報及び圃場情報に基づいて算出される単位面積当たりの収穫量に基づき散布された肥料の適否判断を圃場単位で行う。【選択図】図1