The farmers were _____________ seeds on the fields.

The farmers were _____________ seeds on the fields.

The farmers were sowing seeds on the fields.

"Sowing" specifically refers to the agricultural practice of planting seeds in soil to grow crops, making it the precise term for this context. Other planting-related verbs like "planting" could work generally, but "sowing" is the most accurate choice when describing the action of distributing seeds across farmland.