Tillage

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Tillage

Tillage (pronunciation: /ˈtɪlɪdʒ/) is the agricultural preparation of soil by mechanical agitation of various types, such as digging, stirring, and overturning.

Etymology

The term "tillage" comes from the Old English tilian which means to strive for, obtain by effort, or cultivate land.

Types of Tillage

There are several types of tillage, including:

  • Primary tillage: The initial major soil tillage operation, performed to reduce soil strength, cover crop residues, and mix soil material.
  • Secondary tillage: Any tillage operation performed after the primary tillage, with tools that penetrate less than one-third the depth of primary tillage.
  • Conservation tillage: Any tillage and planting system that covers 30 percent or more of the soil surface with crop residue, after planting, to reduce soil erosion by water.
  • No-till farming: A way of growing crops from year to year without disturbing the soil through tillage.

Related Terms

  • Soil erosion: The displacement of the upper layer of soil, it is one form of soil degradation.
  • Crop residue: The remains of plants that have been harvested.
  • Soil compaction: The process by which a stress applied to a soil causes densification as air is displaced from the pores between the soil grains.

External links

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