Larding the Lean Earth: Soil and Society in 19th Century America - Historical Study of Agricultural Practices for Students and Researchers" （注：原标题为学术书籍名称，故保持原名主体不变，添加了世纪写法优化，并补充了目标读者和使用场景）

A Major History of Early Americans' Ideas about ConservationFifty years after the Revolution, American farmers faced a crisis: the failing soils of the Atlantic states threatened the agricultural prosperity upon which the republic was founded. Larding the Lean Earth explores the tempestuous debates that erupted between "improvers," intent on sustaining the soil of existing farms, and "emigrants," who thought it wiser and more "American" to move westward as the soil gave out. Larding the Lean Earth is a signal work of environmental history and an original contribution to the study of antebellum America.