seedbed; sowing bed; seedling container
Agricultural term for a container or bed where seeds are sown and seedlings are raised before transplanting. The cross-reference は種床 (はしゅどこ) is a synonym.
See also: 播種床 (はしゅどこ)
I sowed tomato seeds in the seedbed.
Nursery trays are often used as seedbeds.
Compound of 種 (たね, 'seed') and 床 (とこ, 'bed'). The reading どこ is a rendaku form of とこ.