Soil and Agriculture

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Across
  1. 3. was an American marine biologist and conservationist whose book Silent Spring and other writings are credited with advancing the global environmental movement
  2. 4. the system of rotating crops in a definite order on the same ground, especially to avoid depleting the soil and to control weeds, diseases, and pests
  3. 5. is a widely used method of growing food in which wild or forested land is clear cut and any remaining vegetation burned
  4. 8. a condition marked by a deficiency of red blood cells or of hemoglobin in the blood, resulting in pallor and weariness
  5. 13. a large increase in crop production in developing countries achieved by the use of fertilizers, pesticides, and high-yield crop varieties
  6. 16. is the salt content in the soil which can be caused by natural processes such as mineral weathering or by the gradual withdrawal of an ocean
  7. 17. is a diagram which shows how each of these 12 textures is classified based on the percent of sand, silt, and clay in each
  8. 18. substances that are derived from the remains or byproducts of natural organisms which contain the essential nutrients for plant growth
  9. 20. a substance that is toxic to plants and is used to destroy unwanted vegetation
  10. 23. the action of clearing a wide area of trees
  11. 28. is a broad-based approach that integrates practices for economic control of pests
  12. 29. is a form of malnutrition in which the intake of nutrients is oversupplied
  13. 31. wear away or change the appearance or texture of by long exposure to the air
  14. 32. when fish are captured and then raised to be sold or used as a food source
  15. 33. plowing along the contours of the land in order to minimize soil erosion
  16. 38. the second or middle zone of soil with, characterized by an accumulation of soluble or suspended organic material, clay, iron, or aluminum
  17. 39. is self-sufficiency farming in which the farmers focus on growing enough food to feed themselves and their families
  18. 42. is the displacement of fertilizer components, via rainwater and mechanical irrigation, from their intended use on a residential or commercial site, to local water sheds and reservoirs
  19. 44. an area that provides shelter from the wind and prevents soil from erosion like a row of trees
  20. 45. lack of proper nutrition by not having enough food that contain substances that help with health and growth
  21. 46. is a severe form of malnutrition produced by inadequate amounts of protein in the diet
  22. 47. a layer in the soil profile
Down
  1. 1. is a type of animal feeding operation which is used in intensive animal farming
  2. 2. a pesticide that has a small coverage range
  3. 6. is the result of a laboratory process where genes from the DNA of one species are extracted and artificially forced into the genes of an unrelated plant or animal
  4. 7. is an animal feeding operation that confines animals for more than 45 days during a growing season, in an area that does not produce vegetation, and meets certain size thresholds
  5. 9. a chemical that is used when many different species of organisms are causing harm or when the specific organism causing harm is unknown
  6. 10. a soil layer that has a high percentage of organic matter
  7. 11. a commercial fishing technique and it uses a long line, called the main line, with baited hooks attached at intervals by means of branch lines
  8. 12. is a way of growing crops or pasture from year to year without disturbing the soil through tillage
  9. 14. a lack of vitamin A in the body
  10. 15. a chemical that destroys fungus
  11. 19. used as an insecticide and it is composed of carbon, chlorine, and hydrogen
  12. 21. the cultivation of a single crop in a given area
  13. 22. abnormal enlargement of the thyroid
  14. 24. a soil layer that is dark in color because of the mixing of humus and minerals
  15. 25. the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture
  16. 26. the layer of unconsolidated rocky material covering bedrock
  17. 27. is fertilizer mined from mineral deposits or manufactured from synthetic compounds
  18. 30. the lowermost zone of soil, consisting mainly of unconsolidated, weathered rock fragments
  19. 34. inadequate nutrition caused by the lack of a balanced diet or by disorders of the digestive system in which the nutrients from food cannot be absorbed properly
  20. 35. something is filled or flooded with water that it becomes heavy and manageable
  21. 36. the rearing of aquatic animals or the cultivation of aquatic plants for food
  22. 37. a substance used to kill insects
  23. 40. the wearing away of topsoil
  24. 41. make or form into a number of level flat areas resembling a series of steps
  25. 43. severe undernourishment causing an infant's or child's weight to be significantly low for their age