The conservationist (click here) agricultural practices developed by George Washington Carver at the beginning of the twentieth century increased agricultural sustainability for poor African-American farmers in the U.S. Deep South. An expert in revitalizing soil, Carver worked through the Tuskegee Institute in Alabama to publicize composting techniques and the importance of crop rotation , which helped combat soil depletion and pest infestation in the region's overcultivated cotton and tobacco fields.
education of blacks was not widespread, and only through his own tenacity
did Carver become Iowa State's first African-American college
graduate, earning a bachelor of science degree in 1894 and a master of
science degree in 1896....
... In 1896, Carver took a job at the Tuskegee Institute, where he discovered
how rotating alternative crops such as sweet potatoes, black-eyed peas,
and especially peanuts restored nitrogen to depleted soil. Carver also
to increase plant resistance to common pests. To popularize his methods,
Carver wrote instructional manuals, and in 1906 he founded the
"moveable school" to give hands-on demonstrations to
illiterate farmers. This school on wheels taught approximately 2,000
month during its first summer, and served as a model for the U.S.
Department of Agriculture's extension program...