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Trend for Precision Soil Testing % Zone or Grid Samples Tested compared to Total Samples

Trend for Precision Soil Testing % Zone or Grid Samples Tested compared to Total Samples. % Zone or Grid Samples Tested Compared to Conventional Whole Field Composite Samples in 2014. %Zone or Grid Samples – Northwood laboratory 1997 - 2014. % Grid or Zone Samples Tested Compared To

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Trend for Precision Soil Testing % Zone or Grid Samples Tested compared to Total Samples

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  1. Trend for Precision Soil Testing% Zone or Grid Samples Tested compared to Total Samples

  2. %Zone or Grid Samples Tested Compared to Conventional Whole Field Composite Samples in 2014

  3. %Zone or Grid Samples – Northwood laboratory1997 - 2014 % Grid or Zone Samples Tested Compared To Conventional Whole Field Composite Samples Tested

  4. Average Soil Nitrate following Wheat in 2014 MB Fall 2014 Samples 31 (lb/a 0-24” samples) 35 33 39 21 39 36 41 35 33 32 37 30 ND 33 32 27 24 32 26 39 MN 34 37 SD 51 32

  5. Average Soil Nitrate Following “Wheat” in Canada1986 - 2014 Nitrate-N (0-24” lb/a)

  6. Soil Nitrate Variability Between Fields Following “Wheat” in Canada – 2014

  7. Average Soil Nitrate following Canola in 2014 MB Fall 2013 Samples 27 (lb/a 0-24” samples) 43 30 40 22 39 40 46 36 31 38 ND 23 25 MN SD

  8. Average Soil Nitrate Following “Canola”1986 - 2014 Nitrate-N (0-24” lb/a)

  9. Soil Nitrate Variability Between Fields Following “Canola” in Canada – 2014

  10. Average Soil Nitrate Following “Barley” in Canada1986 - 2014 Nitrate-N (0-24” lb/a)

  11. Soil Nitrate Variability Between Fields Following “Barley” in Canada - 2014

  12. Average Soil Nitrate Following “Flax” in Canada1988 - 2013 Nitrate-N (0-24” lb/a)

  13. Soil Nitrate Variability Between Fields Following “Potato” in Canada - 2014

  14. Average Soil Nitrate Following “Potato” in Canada1986 - 2014 Nitrate-N (0-24” lb/a)

  15. Average Soil Nitrate following Corn in 2014 Fall 2014 samples MB (lb/a 0-24” samples) 45 60 65 35 39 40 37 ND 41 38 37 31 37 44 28 MN 62 44 SD 58 46 87

  16. Average Soil Nitrate Following “Corn” in Canada1988 - 2014 Nitrate-N (0-24” lb/a)

  17. Soil Nitrate Variability Between Fields Following “Corn” in Canada - 2014

  18. Average Soil Nitrate following Soybean in 2014 Fall 2014 samples MB 24 (lb/a 0-24” samples) 30 30 26 33 37 25 21 27 24 29 ND 24 19 23 24 19 20 25 MN 23 25 SD 38 17 46 33

  19. Average Soil Nitrate Following “Soybean” in Canada2008 - 2014 Nitrate-N (0-24” lb/a)

  20. Soil Nitrate Variability Between Fields Following “Soybean” in Canada 2014

  21. % Soil Samples with Phosphorus less than 10 ppm Fall 2014 samples MB 38% (0-6” samples) 40% (Olsen P test) 45% 50% 17% 76% 46% 24% 32% 72% 72% 72% 53% 60% 67% ND 46% 57% 58% 50% 66% 37% 63% MN 40% 47% 36% SD 22% 38% 46% 32% 31%

  22. % Soil Samples with Potassium less than 150 ppm MB Fall 2014 samples 37% 16% (0-6” samples) 36% 33% 36% 12% 17% 27% 18% 3% 5% 2% 15% 72% 33% ND 6% 21% 68% 7% 43% 6% 45% 1% 5% 22% MN 31% SD 50% 1% 3% 25% 35%

  23. % Soil Samples with Zinc less than 1.0 ppm MB Fall 2014 samples 44% 58% (0-6” samples) 51% 56% 28% 80% 47% 34% 33% 74% 87% 81% 50% 63% 41% ND 47% 71% 28% 81% 51 61% 18% 84% 46% MN 47% 31% SD 34% 60% 45% 36% 26%

  24. % Soil Samples with Sulfur less than 15 lb/a MB Fall 2014 samples 10% 20% (0-6” samples) 18% 12% 8% 31% 33% 17% 16% 57% 18% 29% 13% 44% 22% ND 33% 65% 20% 49% 34% 67% 68% 47% MN 81% 36% 59% SD 69% 84% 73% 39% 57%

  25. % Soil Samples with %OM less than 3.0% MB Fall 2014 Samples 8% 12 (0-6” samples) 27% 12% 35% 28% 36% 22% 26% 60% 33% 44% 21% 20% 36% ND 23% 58% 77% 26% 28% 34% 27% 49% MN 28% 11% 12% SD 17% 31% 5% 26% 7%

  26. % Soil Samples with Chloride less than 40 lb/a MB Fall 2014 Samples 46% (0-24” samples) 41% 57% 51% 25% 77% 65% 36% 30% 86% 55% 72% 37% 38% 76% ND 69% 88% 52% 50% 89% 90% 89% 52% MN 67% 86% SD 62% 81% 70%

  27. % Soil Samples with Copper less than 0.5 ppm MB Fall 2014 samples 18% 3% (0-6” samples) 27% 9% 31% 17% 13% 17% 16% 3% 16% 3% 19% 32% 46% ND 9% 43% 11% 27% 16% 12% 23% 10% 4% MN 5% 5% SD 4% 2% 5% 1%

  28. % Soil Samples with Boron less than 0.4 ppm MB Fall 2014 samples 1% (0-6” samples) 1% 3% 0% 6% 1% 11% 11% 1% 3% 3% 8% 6% 26% 5% ND 5% 20% 40% 91% 4% 13% 44% 7% 11% 14% MN 8% SD 6% 25% 9% 44% 23%

  29. % Soil Samples with Soil pH greater than 7.3 MB Fall 2014 samples 64% 94% (0-6” samples) 72% 73% 87% 79% 57% 79% 76% 61% 73% 52% 78% 55% 96% ND 35% 7% 65% 44% 77% 31% 44% 9% 22% MN 38% 57% SD 22% 28% 22% 26% 22%

  30. % Soil Samples with Soil pH less than 6.0 MB Fall 2014 samples 6% 0% (0-6” samples) 4% 6% 2% 1% 25% 1% 3% 4% 2% 6% 3% 12% 1% ND 20% 41% 4% 15% 4% 16% 14% 28% 16% MN 25% 10% 16% SD 22% 34% 13% 18% 39%

  31. % Soil Samples with Carbonate greater than 5.0% MB Fall 2014 samples 16% (0-6” samples) 56% 23% 12% 22% 9% 10% 44% 10% 4% 14% 6% 24% 26% 3% ND 5% 5% 10% 26% 8% 3% 8% 1% MN 8% 31% SD 4% 8% 1% 3%

  32. % Soil Samples with Salts greater than 1.0 MB Fall 2014 Samples 9% 10% (0-6” samples) 15% 16% 14% 8% 5% 17% 13% 2% 17% 6% 32% 13% 5% ND 8% 2% 1% 21% 10% 3% 2% 17% MN 8% 4% SD 0% 1% 3% 11% 3%

  33. Manitoba - % Samples Testing with Salts greater than 1.0 582 NE ND R0G R0K 1:1 salt method – expressed as mmhos/cm

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