Soil Science 212 Midterm Exam

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Across
  1. 2. a by-product of photosynthesis
  2. 6. movement that does not exert energy
  3. 9. deficiency can be found in older leaves
  4. 12. inherent capacity of plants
  5. 15. the destruction of soil rendering it unproductive
  6. 17. Created the equation for nutrient movement from higher to lower gradient of concentration
  7. 19. a condition of soil that limits nutrient availability
  8. 22. the movement from higher concentration to lower concentration
  9. 24. a condition of soil the limits nutrient availability
  10. 25. Matter natural substance added to soil to improve structure
  11. 26. visual symptoms of these are found in the younger leaves
  12. 27. negatively charged soil nutrients
  13. 28. the inherent capacity of soil to support plant growth
Down
  1. 1. electrical charge of soil micelle
  2. 3. external factors that help plant growth
  3. 4. Controls soil distribution due to differences in elevation
  4. 5. condition where oxygen is not necessary
  5. 7. well-developed soil found in alluvial terraces in the Phils.
  6. 8. living component of soil that helps in plant growth and production
  7. 10. the place where earliest recording of soil fertility was noted
  8. 11. the ability of soil to turn out the quantity of plants
  9. 12. a by-product of photosynthesis
  10. 13. water is necessary for nutrient uptake to take place
  11. 14. provides the energy needed for nutrients to move
  12. 16. condition where the presence of oxygen is necessary
  13. 18. help carry metal ions during nutrient intake
  14. 19. nutrient uptake that takes effort
  15. 20. the presence controls soil distribution due to presenc/eabsence of plants
  16. 21. positively charged soil nutrients
  17. 23. chemical substance added to soil to help plant growth