from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The successive planting of different crops on the same land to improve soil fertility and help control insects and diseases.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A farming practice in which the same land is used to grow different crops in successive seasons or years (when once the land would have been left fallow); used to prevent erosion and increase fertility.


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