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

AGVISE Laboratories % Zone or Grid Samples Tested Compared to Conventional Whole Field Composite Samples in 2013

AGVISE Laboratories %Zone or Grid Samples – Northwood laboratory % Grid or Zone Samples Tested Compared To Conventional Whole Field Composite Samples Tested

Average Soil Nitrate following Wheat in 2013 Fall 2013 Samples (lb/a 0-24” samples) MB ND SD MN

Average Change in Soil Nitrate From 2012 (lb/a 0-24” samples) MB ND SD MN (Wheat fields tested in the fall)

Soil Nitrate Variability Between Fields Following “WHEAT” in 2013

Average Soil Nitrate Following “WHEAT” Years of history! Nitrate-N (0-24”)

Average Soil Nitrate Following Wheat For Region ( ) Deep “N” (24-48” lb/a) Nitrate-N (24-48” lb/a)

Soil Nitrate Variability Between Fields Following “Barley” in 2013

Average Soil Nitrate Following “BARLEY Nitrate-N (0-24” lb/a)

Soil Nitrate Variability Between Fields Following “Sunflower” in 2013

Average Soil Nitrate Following “SUNFLOWER” Nitrate-N (0-24” lb/a)

Soil Nitrate Variability Between Fields Following “Edible Beans” in 2013

Average Soil Nitrate Following “DRY BEANS” Nitrate-N (0-24” lb/a)

Soil Nitrate Variability Between Fields Following “Sugarbeet” in 2013

Average Soil Nitrate Following “SUGARBEET” Nitrate-N (0-24” lb/a)

Soil Nitrate Variability Between Fields Following “Fallow” in 2013

Average Soil Nitrate Following “FALLOW” Nitrate-N (0-24” lb/a)

Soil Nitrate Variability Between Fields Following “Soybeans” in 2013

Average Soil Nitrate Following “Soybeans” Nitrate-N (0-24” lb/a)

Average Soil Nitrate following Corn in 2013 Fall 2013 samples (lb/a 0-24” samples) MB ND SD MN

Average Change in Soil Nitrate From 2012 (lb/a 0-24” samples) MB ND SD MN (Corn fields fields tested in the fall) +12

Soil Nitrate Variability Between Fields Following “Corn” in 2013

53% 71% 49% 66% 60% 77% 76% 55% 71% 37% 20% 21% 66% 47% 30% 71% % Soil Samples with Phosphorus less than 10 ppm Fall 2013 samples (0-6” samples) MB ND SD MN 40% (Olsen P test) 40% 63% 34% 32% 37% 31% 36% 47% 51%41% 55% 22%

18% 13% 3% 4% 5% 7% 5% 2% 42% 33% 16% 25% 32% 34% 16% 12% % Soil Samples with Potassium less than 150 ppm Fall 2013 samples (0-6” samples) MB ND SD MN 33% 11% 45% 16% 5% 29% 38% 28% 21% 4%1% 39% 73% 31%

64% 50% 75% 57% 70% 85% 83% 57% 69% 34% 32% 35% 31% 63% 39% 48% 74% % Soil Samples with Zinc less than 1.0 ppm Fall 2013 samples (0-6” samples) MB ND SD MN 32% 36% 28% 58% 16% 34% 47% 45% 66% 83% 29% 46% 74% 85%

14% 20% 41% 61% 43% 59% 28% 37% 22% 16% 15% 10% 12% 8% 14% 11% 32% 23% % Soil Samples with Sulfur less than 15 lb/a Fall 2013 samples (0-6” samples) MB ND SD MN 20% 72% 64% 88% 79% 52% 44% 51% 49% 33% 30% 63% 66%

23% 20% 29% 23% 33% 58% 60% 39% 24% 19% 25% 14% 36% 6% 18% 34% 24% % Soil Samples with %OM less than 3.0% Fall 2013 Samples (0-6” samples) MB ND SD MN 9% 4% 11% 28% 36% 19% 15% 29% 26% 25% 48% 12% 29% 16%

61% 45% 59% 72% 90% 85% 92% 75% 88% 58% 26% 86% 75% 66% 53% 32% 36% 26% 69% 44% 47% 76% % Soil Samples with Chloride less than 40 lb/a Fall 2013 Samples (0-24” samples) MB ND SD MN 44% 73% 82% 52% 84% 66%

14% 17% 8% 20% 11% 5% 3% 1% 3 20% 37% 25% 6% 0% 1% 6% 19% 16% 35% 29% 15% 30% % Soil Samples with Copper less than 0.5 ppm Fall 2013 samples (0-6” samples) MB ND SD MN 16% 7% 10% 5% 21% 38% 42% 19%

4% 10% 8% 4% 20% 24% 4% 28% 5% 1% 13% 4% 1% 8% 2% % Soil Samples with Boron less than 0.4 ppm Fall 2013 samples (0-6” samples) MB ND SD MN 1% 17% 50% 81% 36% 11%18% 14% 10% 9% 15% 29% 9% 0% 22%

68% 78% 73% 37% 34% 52% 63% 55% 28% 55% 82% 97% 41% 38% 27% 24% 75% 81% 75% 81% 51% 71% % Soil Samples with Soil pH greater than 7.3 Fall 2013 samples (0-6” samples) MB ND SD MN 68% 23% 17% 24% 14% 52% 61% 94% 93%

3% 1% 11% 9% 3% 5% 36% 17% 3% 1% 41% 11% 20% 14% 2% 1% 6% 1% 33% 1% % Soil Samples with Soil pH less than 6.0 Fall 2013 samples (0-6” samples) MB ND SD MN 4% 10% 31% 13% 27% 17% 8% 94% 1% 25%

10% 23% 9% 6% 17% 7% 11% 27% 24% 30% 11% 8% 1% 10% 44% 45% 31% 13% 8% % Soil Samples with Carbonate greater than 5.0% Fall 2013 samples (0-6” samples) MB ND SD MN 27% 1% 10% 24% 51% 5% 3% 1% 4% 3% 9%

19% 30% 13% 8% 1% 3% 1% 5% 1% 3% 10% 15% 2% 8% 2% 17% 11% 8% 15% 4% 5% % Soil Samples with Salts greater than 1.0 Fall 2013 Samples (0-6” samples) MB ND SD MN 9% 11% 0% 6% 2% 11% 5% 10% 16%

North Dakota & NW Minnesota % Samples Testing with Salts greater than 1.0 1:1 salt method – expressed as mmhos/cm 582 Grand Forks 567 TRF 587 Minot

South Dakota - % Samples Testing with Salts greater than 1.0 1:1 salt method – expressed as mmhos/cm

Zip Code Areas For Soil Test Summaries