erosion wkst

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Name _______________________
Soil Erosion & Tillage Review
Name the Soil Erosion Type: Splash, Sheet, Rill, or Gully
1. _________________ Removal of soil from the surface of an area in thin layers.
2. _________________ The process whereby water accumulates in narrow channels and,
over a short period, removes the soil from these areas.
3. _________________ Erosion due to raindrops – detaches soil & destroys granulation.
4. _________________ Formulation of a multitude of very shallow trenches by movement
of water.
Name the Soil Erosion Prevention Practice: No-till, Cover Crop, Green Manure, Terraces,
Field Windbreak, Grass Waterway, Strip Cropping
1. _________________ Green plants plowed under for the purpose soil building.
2. _________________ Growing different types of crops in alternating strips along contours
to conserve soil.
3. _________________ Raised, level strip of land usually constructed on a contour that
appear to be steps on a hillside.
4. _________________ Strips of land permanently seeded to grass that control water runoff
from sloping land and conduct it to drainage outlets.
5. _________________ Grasses and legumes planted to reduce erosion and add organic
matter.
6. _________________ A strip of trees or shrubs planted to reduce wind erosion.
7. _________________ Most effective practice that leaves all of the crop residue on the
field.
Name the Tillage Equipment: Moldboard Plow, Disk, Chisel Plow, Disk Harrow, Rotary
Hoe
1. _________________ Hoe wheels on long shaft dig into soil (shallow) – usually mounted
on tractor for row crops.
2. _________________ Inverts soil, turns residue under soil surface.
3. _________________ Does not invert soil, uses chisels or sweeps that shatter the soil leaves residue on surface.
4. _________________ Similar to disk plow except smaller discs - cuts residue, but leaves
on surface.
5. _________________ Rolling disks, similar to moldboard plow, better in sticky soils.
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