Combine Harvester and Grain Yield Management System for Combine Harvester

A grain yield management system for a combine harvester, the system comprising:

• a threshing apparatus;
• a grain accumulator;
• a grain conveyance mechanism for conveying grains from the threshing apparatus to the grain accumulator;
• a conveyed grain measurement apparatus for measuring an amount of grain conveyed by the grain conveyance mechanism during travel for reaping grain culms;
• an accumulated grain measurement apparatus for measuring an amount of grain accumulated in the grain accumulator;
• and
• an information generator for generating grain yield information regarding a field subjected to harvesting work, based on conveyed grain measurement data outputted from the conveyed grain measurement apparatus and accumulated grain measurement data outputted from the accumulated grain measurement apparatus.