tuber crop

例句：

1. 1. Tuber crops are often used as a source of food in rural areas.
   块茎作物通常在农村地区用作食物来源。
2. 2. The farmers are trying to increase the yield of their tuber crops.
   农民们正试图提高他们的块茎作物的产量。
3. 3. The tuber crop is a valuable resource for many communities.
   块茎作物是许多社区的重要资源。