The Sumerians increased food production through the following methods:
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Irrigation: They developed an extensive irrigation system that included canals, dikes, and reservoirs, allowing them to control water flow from the Tigris and Euphrates rivers to their fields. This enabled them to farm more land and grow crops more reliably, even during dry seasons.
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Crop Rotation and Agricultural Practices: The Sumerians practiced crop rotation and utilized different agricultural techniques to improve soil fertility and maximize yields. By alternating the types of crops grown, they were able to enhance soil nutrients and reduce pest problems.
These innovations played a crucial role in supporting their civilization and sustaining a growing population.