Monday, Dec 9
Sharon Kardia: Genomics in the Health & Retirement Study
Sylvester, Kenneth M., and Geoff Cunfer. 2009. "An Unremembered Diversity: Mixed Husbandry and the American Grasslands." Agricultural History, 83(3): 352-383.
The Green Revolution of the 1960s brought about a dramatic rise in global crop yields. But, as most observers acknowledge, this has come at a considerable cost to biodiversity. Plant breeding, synthetic fertilizers, and mechanization steadily narrowed the number of crop varieties commercially available to farmers and promoted fencerow-to-fencerow monocultures. Many historians trace the origins of this style of industrialized agriculture to the last great plow-up of the Great Plains in the 1920s. In the literature, farms in the plains are often described metaphorically as wheat factories, degrading successive landscapes. While in many ways these farms were a departure from earlier forms of husbandry in the American experience, monocultures were quite rare during the early transformation of the plains. Analysis of a large representative sample, based on manuscript agricultural censuses and involving twenty-five townships across the state of Kansas, demonstrates that diverse production reached even the most challenging of plains landscapes.
PMCID: PMC2766303. (Pub Med Central)
Country of focus: United States.