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The modern combine harvester, simply combine, is a machine designed to harvest a variety of cultivated seeds. Combine harvesters are one of the most economically important labour-saving inventions, significantly reducing the fraction of the population engaged in agriculture.[1] Among the crops harvested with a combine are wheat, rice, oats, rye, barley, corn (maize), sorghum, millet, soybeans, flax (linseed), sunflowers and rapeseed. The separated straw (consisting of stems and any remaining leaves with limited nutrients left in it) is then either chopped onto the field and ploughed back in, or laid out in rows, ready to be baled and used for bedding and cattle feed.
The name of the machine is derived from the fact that the harvester combined multiple separate harvesting operations — reaping, threshing or winnowing and gathering— into a single process around the start of the 20th century.[2] A combine harvester still performs those operation principles. The machine can easily be divided into four parts, namely: the intake mechanism, the threshing and separation system, the cleaning system, and finally the grain handling and storage system. Electronic monitoring assists the operator by providing an overview of the machine's operation, and the field's yield.
- ^ Constable, George; Somerville, Bob (2003). A Century of Innovation: Twenty Engineering Achievements That Transformed Our Lives, Chapter 7, Agricultural Mechanization. Washington, DC: Joseph Henry Press. ISBN 0-309-08908-5.
- ^ Mark Hanna, H.; Quick, Graeme R. (2019), "Grain Harvesting Machinery", Handbook of Farm, Dairy and Food Machinery Engineering, Elsevier, pp. 157–174, doi:10.1016/b978-0-12-814803-7.00008-7, ISBN 978-0-12-814803-7, retrieved 2024-04-04