PROBLEM TO BE SOLVED: To support the execution of an appropriate agricultural operation according to situations.SOLUTION: An apparatus for supporting an agricultural operation includes: an operation rule information storage unit for storing operation rule information including information indicating the condition of crops or information indicating the condition of an environment, requirements about the condition of the crops or the condition of the environment, operation information indicating an operation to be executed when the requirements are met, and the degrees of contribution to the growth of the crops in the operation an operation rule information extraction unit for extracting from the operation rule information storage unit the operation rule information including the requirements matching the inputted information indicating the condition of the crops or the information indicating the condition of the environment and an operation instruction unit which outputs the operation information included in the operation rule information extracted. When a plurality of pieces of operation rule information are extracted, the operation instruction unit selects the piece of operation rule information to be outputted from among the plurality of pieces of operation rule information according to the degree of contribution.COPYRIGHT: (C)2012,JPO&INPIT【課題】状況に応じた適切な農作業の実施を支援すること。【解決手段】農作業支援装置は、作物の状態を示す情報又は環境の状態を示す情報と、前記作物の状態又は前記環境の状態に関する条件と、前記条件が満たされた場合に実行すべき作業を示す作業情報と、前記作業の前記作物の生育に対する寄与度とを含む作業規則情報を記憶した作業規則情報記憶部と、入力される前記作物の状態を示す情報又は前記環境の状態を示す情報に合致する前記条件を含む前記作業規則情報を前記作業規則情報記憶部より抽出する作業規則情報抽出部と、抽出された前記作業規則情報に含まれる前記作業情報を出力する作業指示部とを有し、前記作業指示部は、複数の前記作業規則情報が抽出された場合は、複数の前記作業規則情報のうち、前記寄与度に基づいて前記出力する作業規則情報を選択する。【選択図】図2