Soil Water Measurement for Agricultural Research

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Contents

  1. Soil Water Measurement for Agricultural Research

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  2. Slide 2

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  3. Slide 3

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  4. Soil Water Balance

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  5. Soil Water Balance

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  6. Water Balance Measurement Errors

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  7. Water Balance Measurement Errors

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  8. Water Balance Measurement Errors

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  9. Water Balance Measurement Errors

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  10. Slide 10

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  11. Example: Not enough spread in data.

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  12. Example: Wrongly combining data.

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  13. Example: Error in standard count.

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  14. Error Control – Tube Counts, CZ

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  15. Controlling probe depth placement

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  16. Slide 16

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  17. Calibration Guidelines - Minimizing b

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  18. Slide 18

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  19. Result of wet/dry site calibration, 1

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  20. Result of wet/dry site calibration, 2

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  21. Slide 21

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  22. Slide 22

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  23. Example 1: Obtainable Precision

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  24. Example 2: Obtainable Precision

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  25. Troxler Sentry 200AP Calibration

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  26. Slide 26

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  27. Slide 27

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  33. Sentek Diviner 2000

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  34. Slide 34

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  35. Time Domain Reflectometry, TDR

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  36. Time Domain Reflectometry

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  37. Time Domain Reflectometry

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  38. Combining Techniques

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  39. Slide 39

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  42. Slide 42

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  43. Slide 43

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  44. Slide 44

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Last updated: 
February 07, 2001 (Wednesday) 

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