south dakota, buckwheat, minor crop, emergency crop
Buckwheat is primarily an emergency crop in South Dakota; however, buckwheat is considered a full-sea¬son crop in Minnesota, North Dakota, and Manitoba. Buckwheat probably originated in China. It was first introduced to the United States by Dutch colonists in the Hudson River Valley in the early 1600s.
Graves, Irene and Hall, Robert, "Buckwheat: A Minor Crop in South Dakota" (2011). SDSU Extension Extra Archives. 238.