American botanist, agricultural chemist, and educator who developed hundreds of uses for the peanut, soybean, and sweet potato, prompting Southern farmers to produce these soil-enriching cash crops.

• 卡沃尔，乔治·华盛顿1864?－1943美国植物学家、农业化学家和教育家，他开发出花生、大豆和甘薯的几百种用途，并且鼓励南方农民种植这些能使土壤变得肥沃的庄稼