Abstract: A management system manages access of agricultural machines to a field, and includes a processor configured or programmed to, while a first agricultural machine is performing an agricultural task in the field and if a conflict of agricultural tasks for the field exists between the first agricultural machine and a second agricultural machine, allow at least one of the first agricultural machine and the second agricultural machine determined based on priority data to perform the agricultural task for the field.

Abstract: An agricultural assistance system includes a controller configured or programmed to control an operation of one or more agricultural machines. In response to receiving from a terminal apparatus a signal requesting assistance in agricultural work for a field, the controller is configured or programmed to cause the one or more agricultural machines to move to the field to assist in the agricultural work for the field.

Abstract: A control system for an agricultural machine includes a controller configured or programmed to control self-driving of the agricultural machine. In a case where preparation work, including at least one of replacement of an implement to be attached to the agricultural machine, maintenance of the implement, replacement of a part of the agricultural machine, maintenance of the part of the agricultural machine, or replenishment of supplies, is necessary to perform agricultural work, the controller is configured or programmed to move the agricultural machine to a preparation site where the preparation work is to be performed, before the agricultural work is performed.

Abstract: A management system includes a storage and a processor. While an agricultural machine including an GNSS receiver is traveling, the storage stores GNSS data output from the GNSS receiver and sensing data output from a sensor sensing a surrounding environment of the agricultural machine in association with each other. The processor is configured or programmed to generate and output visualized data, which represents the surrounding environment of the agricultural machine, based on the GNSS data and the sensing data, when reception interference of a satellite signal occurs.