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Homework answers / question archive / Chapter 9   the practice of cultivating soil, producing crops, and raising livestock for human use and consumption The cont mass of solid rock that makes up earths crust us policy in farm bills since 1985 that pays farmers to stop cultivating highly erodible cropland and instead place it in conservation reserves planted with grasses and trees ag that limits the amt of tilling of soil the prac of plowing furrows sideways across a hillside, perpendicular to its slope, to help prevent the formation of rills and gullies

Chapter 9   the practice of cultivating soil, producing crops, and raising livestock for human use and consumption The cont mass of solid rock that makes up earths crust us policy in farm bills since 1985 that pays farmers to stop cultivating highly erodible cropland and instead place it in conservation reserves planted with grasses and trees ag that limits the amt of tilling of soil the prac of plowing furrows sideways across a hillside, perpendicular to its slope, to help prevent the formation of rills and gullies

Management

Chapter 9

 

  1. the practice of cultivating soil, producing crops, and raising livestock for human use and consumption
  2. The cont mass of solid rock that makes up earths crust
  3. us policy in farm bills since 1985 that pays farmers to stop cultivating highly erodible cropland and instead place it in conservation reserves planted with grasses and trees
  4. ag that limits the amt of tilling of soil
  5. the prac of plowing furrows sideways across a hillside, perpendicular to its slope, to help prevent the formation of rills and gullies. The tech is named this bc the furrows follow the natural contours of the land.
  6. the prac of alternating the kind of crop grown in a particular field from one season or year to the next
  7. sediment consisting of particles less than 0.002 mm in diameter
  8. one of many country-based entities created by the Soil Conservation Service to promote practices that conserve soil
  9. land that humans use to raise plants for food and fiber
  10. a form of land degradation in which more than 10% of a lands prod is lost due to erosion, soil compaction, etc. severe desertification can result in the expansion of desert areas
  11. an area that loses huge amounts of topsoil to wind erosion as a result of drought and/or human impact; first used to name the region in the north american great plains severely affected by drought and topsoil loss in the 1930s.
  12. the removal of material from one place and its transport to another by the action of wind or water
  13. a substance that promotes plants growth by supplying essential nutrients such as nitrogen or phosphorus
  14. an intensification of the industrialization of agriculture in the developing world in the latter 20th century, dramatically increasing crop yields
  15. a distinct layer of soil
  16. the artificial provision of water to support agriculture
  17. planting different types of crops in alternating bands or other spatially mixed arrangements
  18. a fert that consists of mined or synthetically manufactured mineral supplements
  19. a form of agriculture that uses large-scale mechanization and fossil fuel combustion, enabling farmers to replace horses and oxen with faster and more powerful means
  20. a general deterioration of land that diminishes its productivity and biodiversity
  21. the process by which solid materials such as minerals are dissolved in a liquid and transported to another location
  22. soil with a relatively even mixture of clay-,silt-, and sand-sized particles
  23. the uniform planting of a single crop over a large area
  24. ag that does not involve tilling the soil. the most extreme form of conservation tillage
  25. us agency that promotes soil conservation as well as water quality protection and pollution control
  26. the consumption by too many animals of plant cover, impeding plant regrowth and the replacement of biomass
  27. a fertilizer made up of natural materials, including animal manure, crop residues, fresh vegetation, and compost
  28. the base geological material in a particular location
  29. land used for grazing livestock
  30. sediment consisting of particles 0.002-0.005 mm in diameter
  31. the buildup of salts in surface soil layers
  32. sediment consisting of particles 0.005-2.0 mm in diameter
  33. a row of trees or other tall perennial plants that are plants all the edges of farm fields to break the wine and thereby minimize wind erosion
  34. cross-section of a soil as a while, from the surface to the bedrock
  35. a deterioration of soil quality and decline in soil productivity, resulting from forest removal, cropland agriculture, and overgrazing of livestock
  36. a complex plant-supporting system consisting of disintegrated rock, organic matter, air, water, nutrients, and microorganisms
  37. the cutting of level platforms, sometimes with raised edges, into steep hillsides to contain water from irrigation and precipitaion. transforms slopes into series of steps like a staircase
  38. that portion of the soil that is most nutritive for plants and is thus the most direct importance to ecosystems (A horizon)
  39. biologically powered agriculture, in which human and animal muscle power, along with hand tools and simple machines perform work
  40. the physical chemical and biological processes that break down rocks and minerals, turning large particles into smaller particles
  41. the saturation of soil by water, in which the water table is raised to the point that water bathes plants roots. waterlogging deprives roots of access to gases, suffocating them and eventually killing them

 

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