fallow land; set-aside field; idle farmland
Refers to farmland deliberately left uncultivated for a period, often to restore soil fertility or due to agricultural policy.
The amount of fallow land is increasing in this region.
There is a plan to use idle farmland for solar power generation.
Compound of 休 (rest, fallow) + 耕 (cultivate) + 地 (land). The term is transparently derived from its kanji components.