off-season for farming; slack farming season
Refers to the period when agricultural work is light, typically winter. Often used in contexts of side jobs, leisure, or seasonal migration.
Many people go away to work during the farming off-season.
Taking advantage of the slack farming season, the farmer started a side business.
Since winter is the off-season for farming, farmers often take on side jobs.
With the harvest finished, the village has finally entered the off-season for farming.
Many people take advantage of the farming off-season to go work in the city.