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AgTM 405

AgTM 405. “Correlation of Yield Maps with Infrared Photography”. AgTM 405 Precision Farming Unit. The Advantages of Infrared Photography Correlated to Yield Maps. Shows potential yield reduction due to irrigation, soil type or fertility problems

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AgTM 405

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  1. AgTM 405

  2. “Correlation of Yield Maps with Infrared Photography” AgTM 405 Precision Farming Unit

  3. The Advantages of Infrared Photography Correlated to Yield Maps • Shows potential yield reduction due to irrigation, soil type or fertility problems • Helps in diagnosing combine monitoring errors that show up on yield maps • Low cost - less than $.50 per acre

  4. Madison Farms

  5. Madison Farms • 3rd generation farm since 1914 • 15,000 acre farm • Crops grown include: Alfalfa, Canola, Corn, Buckwheat, Wheat, Potatoes, & Peas • 6,479 irrigated acres • Desert acres applied with bio-solids from Portland metro areas • Employs 18-24 people

  6. Circle #17

  7. Early Season Infrared - C17 • Picture taken on August 11, 1997

  8. Early Season Infrared - C17 • Small future yield changes starting to show up

  9. Early Season Infrared - C17 • Infrared with yield contour lines overlaid

  10. Mid-Season Infrared - C17 • Picture taken on August 23, 1997 • Yield changes become less noticeable

  11. Late Season Infrared - C17 • Picture Taken on Sept 4, 1997

  12. Raw Yield Data - C17 • Yield decrease in Northwest corner

  13. Raw Yield Data - C17 • Pivot road and planter skip

  14. Raw Yield Data - C17 • Yield monitor malfunction

  15. Average and Contour - C17 • After average and contour yield decreases show up the same as monitor malfunctions

  16. Circle #3

  17. Early Season Infrared - C3 • Picture taken August 11, 1997 • No center ring showing up

  18. Infrared with Contours - C3 • Infrared not showing a yield reduction on the West side

  19. Late Season Infrared with Contours - C3 • Picture taken September 4, 1997 • Center ring showing up

  20. Late Season Infrared - C3 • Center ring showing up • Ring caused by rotator sprinkler pressure set to high causing leaf damage to corn crop

  21. Late Season Infrared with Contours - C3 • Picture taken September 4, 1997 • Noticeable ring showing up in the center of the circle

  22. Raw Combine Data - C3 • One of the two combine’s yield monitors was not working correctly

  23. Raw Combine Data - C3 • Slight center ring yield reduction showing up at harvest time

  24. Raw Combine Data - C3 • Slight center ring yield reduction showing up at harvest time.

  25. Average and Contour - C3 • Assumed low yield on West side • No center ring showing up

  26. Circle # 53

  27. Infrared - C53 • Sand ridge shows up in the infrared

  28. Infrared - C53 • Outer edge of the circle shows up in the infrared

  29. Infrared with Contour Lines C53 • Yield contour lines show the sandy ridge and the reduction in yield

  30. Raw Data - C53 • The sandy ridge and the outer edge both show a yield reduction

  31. Average and Contour - C53 • Sand ridge shows yield reduction

  32. Average and Contour - C53 • Outer ring of the circle shows yield reduction

  33. Circle #55

  34. Infrared - C55 • Infrared shows the future area of low yields located on the sandy ridge

  35. Infrared - C55 • Infrared shows no future reduction in yield at this spot

  36. Infrared with Contours - C55 • Yield map contours and the infrared show the same location for yield reduction

  37. Infrared with Contours - C55 • Yield map contours and the infrared do not show the same location for yield reduction

  38. Average and Contour - C55 • Large yield reduction in the Northeast corner • Center pivot reversed before the reverse stops

  39. Raw Data - C55 • Combine monitor error shows an assumed low yield at arrow

  40. Raw Data - C55 • Combine monitor shows actual low yield at arrow due to sandy ridge

  41. Circle #16

  42. Corn Yield - C16

  43. The Question is “What causes the low yield spot”?

  44. Nitrogen - C16 • Sample date 2/12/1997 • Red area 29 lbs/acre • Yellow area 85 lbs/acre • Green area 141 lbs/acre

  45. Potassium - C16 • Red area 368 lbs/acre • Yellow area 501 lbs/acre • Green area 634 lbs/acre

  46. Ph. - C16 • Red area 6.8 p.h. level • Yellow area 7.45 p.h. level • Green area 8.09 p.h. level

  47. Phosphorus - C16 • Red area 33 lbs/acre • Yellow area 51 lbs/acre • Green area 69 lbs/acre

  48. Iron - C16 • Red area 5 lbs/acre • Yellow area 12 lbs/acre • Green area 19.9 lbs/acre

  49. Magnesium - C16 • Red area 3 lbs/acre • Yellow area 6.5 lbs/acre • Green area 9.9 lbs/acre

  50. Corn Yield - C16Rocky Out-Cropping

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