PROBLEM TO BE SOLVED: To provide an agricultural material supply management system capable of preparing an agricultural material necessary for an appropriate supply position. SOLUTION: An agricultural material supply management system is a system of a field working machine that supplies agricultural material to the field while traveling along a travel route set in the field, and the amount of agricultural material input per unit travel distance. A unit input amount calculation unit 73 for calculating the unit input amount, a storage amount calculation unit 74 for calculating the storage amount of the agricultural material stored in the field work machine, and an agricultural material for the field work machine in the field peripheral region. A replenishment position for replenishing the field is calculated based on the traveling route, the unit input amount, and the accommodation amount, and a loading amount of the agricultural material loaded on the field work machine at the replenishment position is calculated. And a loading amount calculation unit 76. [Selection diagram] Figure 1【課題】適正な補給位置に必要な農業資材を準備することを可能にする農業資材補給管理システムを提供する。【解決手段】農業資材補給管理システムは、圃場に設定された走行経路に沿って走行しながら農業資材を圃場に供給する圃場作業機のシステムであって、単位走行距離当たりの農業資材の投入量である単位投入量を算出する単位投入量算出部７３と、圃場作業機に収容されている前記農業資材の収容量を算出する収容量算出部７４と、圃場周辺領域で圃場作業機に農業資材を補給するための補給位置を、走行経路と前記単位投入量と前記収容量に基づいて算出する補給位置算出部７５と、補給位置で圃場作業機に積み込む前記農業資材の積込量を算出する積込量算出部７６とを備える。【選択図】図１
