noun
poor soil; poor country
Refers to infertile land or, by extension, a country with poor soil. The 'poor country' sense is less common and often understood from context.
この地域は貧土で、作物が育ちにくい。
This area has poor soil, making it hard to grow crops.
貧土の国では食料自給が難しい。
In a country with poor soil, food self-sufficiency is difficult.