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In page Buffalo County, Wisconsin:

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The Civil War gave a boost to the local economy with the rising demand for wheat, which was the main crop of the county. The postwar period brought a large influx of settlers; however, because of declining soil fertility, many moved west rather than adopt crop rotation and fertilization.[citation needed] With the price of wheat falling, farmers turned to dairy farming, and by the 1880s, local creameries had started to appear.