autumn at harvest time; harvest autumn
Refers to the autumn season when crops are ready for harvest, often evoking a sense of abundance and the culmination of the farming year.
This year's harvest autumn is bountiful, and the farmers are busy.
The rice fields in harvest autumn shine golden.
Compound of 出来 (deki, 'result, produce') and 秋 (aki, 'autumn'), literally 'produce autumn'.