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Tilth is the ability of the soil to facilitate tillage, resist weeds, and allow plants to take root. It can also refer to the act of tilling, or cultivating soil. Some have related soil tilth to the physical condition of the soil created by integrating the effects of all physical, chemical, and biological processes occurring within a soil matrix. Soil tilth is usually used as a general descriptive term (good, moderate, or poor) rather than a precisely defined scientific quotient.

See also Agricultural chemicals; Arable land; Soil fertility

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