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The Impact of Genetically Engineered Crops on Farm Sustainability in the United States (2010) / Chapter Skim
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Appendix B: Tillage Systems
Pages 245-246

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From page 245...
... Conventional or Conservation Tillage Pretillage – may include shredding of cornstalks, usually in the fall, shortly after harvest. Primary Tillage – types of equipment include moldboard plow, chisel plow, field cultivator, and tandem disk depending upon preference by the grower and soil erosion potential.
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From page 246...
... Not all soils are suitable for no-till, especially wet and heavy soils in northern latitudes, and no-till may lead to increased pest occurrence because conventional tillage may reduce insect, pathogen, and weed occurrence. On the other hand, no-till is well adapted to well-drained soils in warm regions because no-till improves soil-water infiltration and reduces soil evaporation, thereby providing more soil water to the crop.
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Key Terms

  • primary tillage
  • tandem disk
  • equipment include
  • moldboard plow
  • field cultivator

  • soil erosion
  • secondary tillage
  • conservation tillage
  • weed management
  • chisel plow

  • kill existing
  • reduce insect
  • weed occurrence
  • grower preferences
  • reduces soil

  • soil conditions
  • include tandem
  • erodible land
  • soil structure
  • existing weeds

  • warm regions
  • soil surface
  • organic growers
  • increased pest
  • chisel disk

  • practicing conservation
  • half rate
  • disk depending
  • disk harrow
  • substitute tillage


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