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 laboratory 1997 - 2014
% Grid or Zone Samples Tested Compared To
Conventional Whole Field Composite Samples Tested

4. 39 30 58 47 31 Average Soil Nitrate following Wheat in 2014
Fall 2014 samples
(lb/a 0-24” samples) 39 30 58 47 31

5. Soil Nitrate Variability Between Fields Following “WHEAT” in Montana - 2014

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

7. 46 58 41 52 37 Average Soil Nitrate following “Fallow” in 2014
Fall 2014 samples
(lb/a 0-24” samples) 46 58 41 52 37

8. Soil Nitrate Variability Between Fields Following “Fallow” in Montana - 2014

9. % Soil Samples with Phosphorus less than 10 ppm
Fall 2014 samples (0-6”)
(Olsen P test)
36%
52%
34%
50%
39%
21%

10. 15% 8% 1% 16% 9% 4% % Soil Samples with Potassium less than 150 ppm
Fall 2014 samples (0-6”)
15% 8% 1%
16% 9% 4%

11. 88% 75% 74% 51% 41% 37% % Soil Samples with Zinc less than 1.0 ppm
Fall 2014 samples (0-6”)
88%
75%
74%
51%
41%
37%

12. 58% 51% 49% 30% 27% 39% % Soil Samples with Sulfur less than 15 lb/a
Fall 2014 samples (0-6”)
58%
51%
49%
30%
27%
39%

13. 1% 5% 1% 2% 2% 1% % Soil Samples with Copper less than 0.5 ppm
Fall 2014 samples (0-6”) 1% 5% 1% 2% 2% 1%

14. 14% 10% 5% 5% 4% 2% % Soil Samples with Boron less than 0.4 ppm
Fall 2014 samples (0-6”)
14%
10% 5% 5% 4% 2%

15. % Soil Samples with Chloride less than 40 lb/a
Fall 2014 samples (0-6”)
879%
64%
71%
48%
52%
56%

16. 6% 15% 27% 14% 4% 51% % Soil Samples with Carbonate greater than 5.0%
Fall 2014 samples (0-6”) 6%
15%
27%
14% 4%
51%

17. 2% 3% 3% 7% 5% 2% % Soil Samples with Salts greater than 1.0 mmhos/cm
Fall 2014 samples (0-6”) 2% 3% 3% 7% 5% 2%

18. 59% 74% 72% 82% 87% 69% % Soil Samples with soil pH greater than 7.3
Fall 2014 samples (0-6”)
59%
74%
72%
82%
87%
69%

19. 4% 4% 3% 2% 1% 2% % Soil Samples with soil pH less than 6.0
Fall 2014 samples (0-6”) 4% 4% 3% 2% 1% 2%

20. 95% 80% 69% 78% 86% 53% % Soil Samples with %OM less than 3.0%
Fall 2014 samples (0-6”)
95%
80%
69%
78%
86%
53%

21. Zip codes for Montana
599
595
592
594
598
596
593
597