1. AGVISE Laboratories %Zone or Grid Samples – Northwood laboratory 1997 - 2011
% Grid or Zone Samples Tested Compared To
Conventional Whole Field Composite Samples Tested

2. AGVISE Laboratories %Zone or Grid Samples Tested Compared to Conventional Whole Field Composite Samples in 2011

3. Average Soil Nitrate following Wheat in 2011MB
Fall 2011 Samples 41 56
(lb/a 0-24” samples) 38 46 39 49 33 42 37 44 40 39 35 ND 44 48 47 40 29 42 56 MN 49 55 SD 34 45

4. Average Soil Nitrate following Wheat in 2011
(change from 2010 averages – More high testing fields) MB
Fall 2011 Samples +3
+18
(lb/a 0-24” samples)
+10
+12
+14 +7 +3 +7 +5
+13
+15 +5 +2 ND
+11
+12
+15 +6
+12 +9 MN +9
+13 SD +2

5. Soil Nitrate Variability Between Fields Following “WHEAT” in 2011

6. Average Soil Nitrate Following “WHEAT” 1986-2011
107 96 81 68
Nitrate-N (0-24”) 64 59 60 61 60 56 54 53 50 48 46 46 42 44 43 41 40 38 35 35 32 29

7. Average Soil Nitrate Following Wheat For Region (1986-2011) Deep “N” (24-48” lb/a)63 59 53 51 49 46 43 44 41
Nitrate-N (24-48” lb/a) 35 36 34 32 31 29 29 29 27 20 18 18 18 19 15 13 14

8. Soil Nitrate Variability Between Fields Following “Barley” in 2011

9. Average Soil Nitrate Following “BARLEY 1986-201195 84 70
Nitrate-N (0-24” lb/a) 56 52 53 53 50 47 48 45 45 43 39 40 41 37 39 35 35 35 34 29 30 29 27

10. Soil Nitrate Variability Between Fields Following “Sunflower” in 2011

11. Average Soil Nitrate Following “SUNFLOWER” 1986- 2011
101 82
Nitrate-N (0-24” lb/a) 70 55 50 47 49 50 48 50 50 46 47 48 43 43 44 44 40 32 34 33 30 27 25 22

12. Soil Nitrate Variability Between Fields Following “Dry Beans” 2011

13. Average Soil Nitrate Following “DRY BEANS” 1986-2011
102
100 78
Nitrate-N (0-24” lb/a) 72 70 65 65 66 61 61 58 57 58 53 52 53 55 51 49 46 46 44 41 38 34 35

14. Soil Nitrate Variability Between Fields Following “Sugarbeet” in 2011

15. Average Soil Nitrate Following “SUGARBEET” 1986- 201153 48 47
Nitrate-N (0-24” lb/a) 30 25 25 25 25 22 23 22 22 21 20 20 21 21 21 19 18 17 16 17 16 15 13

16. Soil Nitrate Variability Between Fields Following “Fallow” in 2011

17. Average Soil Nitrate Following “FALLOW” 1986-2011
149
143
128
119
102 98 93 84 85 80 79 81 79 75
Nitrate-N (0-24” lb/a) 67 69 66 58 60 62 59 60 55 48 50 46

18. Soil Nitrate Variability Between Fields Following “Soybeans” in 2011

19. Average Soil Nitrate Following “SOYBEAN” 1995-201135 35 33 32 31 31 30 30 29 29 28 27 27 27 26
Nitrate-N (0-24” lb/a) 24 23

20. Average Soil Nitrate following Corn in 2011
Fall 2011 samples MB
(lb/a 0-24” samples) 49 46 70 55 43 33 33 ND 43 29 35 33 38 39 35 39 MN 47 42 SD 42 46 62

21. Average Soil Nitrate following Corn in 2011
(Change from 2010 averages)
Fall 2011 samples MB
(lb/a 0-24” samples) +1
+12
+22
+17
+14 +3 +4 ND -3 +2 +1 -1
-18
-13 MN
-13 -8 SD -8 -5 -7

22. Soil Nitrate Variability Between Fields Following “Corn” in 2011

23. % Soil Samples with Phosphorus less than 10 ppm
Fall 2011 samples MB
43%
(0-6” samples)
38%
(Olsen P test)
50%
53%
21%
60%
28%
34%
29%
83%
77%
77%
60%
72%
64% ND
53%
59%
65%
71%
74%
37%
66%
46%
55% MN
36% SD
29%
43%
63%
46%
36%

24. % Soil Samples with Phosphorus less than 10 ppm
“Percentage Change from 2010” (More low testing fields)
Fall 2011 samples MB
(0-6” samples)
(Olsen P test)
-6%
+20%
+6%
+7%
+8%
+4%
+9%
+1%
+2%
-3%
+5%
+3%
-12% ND
-3%
+7%
+2%
-3%
+7%
+1%
+2%
+1%
+6% MN
+1% SD
+4%
+3%
+2%
-3%

25. % Soil Samples with Potassium less than 150 ppmMB
Fall 2011 samples
29% 8%
(0-6” samples)
28%
28%
20% 3%
13%
15%
23% 3% 5% 2%
15%
35%
74% ND 7%
24%
79% 6%
51% 6%
54% 1% 5%
28% MN
32% SD
40% 0% 5%
29%
43%

26. % Soil Samples with Zinc less than 1.0 ppmMB
Fall 2011 samples
33%
55%
(0-6” samples)
53%
28%
66%
48%
37%
31%
88%
74%
80%
52%
72%
49% ND
52%
22%
85%
64%
65%
72%
22%
82%
55%
64% MN
32% SD 36
72%
47%
40%
38%

27. % Soil Samples with Sulfur less than 15 lb/aMB
Fall 2011 samples 9%
14%
(0-6” samples)
18% 3%
14%
11%
26% 8%
14%
63%
25%
31%
12%
13%
40% ND
34%
53%
43%
17%
23%
66%
55%
63%
22%
32% MN
49% SD
37%
67%
22%
51%
75%

28. % Soil Samples with %OM less than 3.0%MB
Fall 2011 samples 6% 6%
(0-6” samples)
13% 8%
35% 9%
30%
22% 8%
67%
31%
37%
19%
19%
29% ND
21%
53%
82%
22%
25%
32%
31%
50%
26%
10% MN 8% SD
14%
20%
28% 8% 5%

29. % Soil Samples with Chloride less than 40 lb/aMB
Fall 2011 Samples
59%
46%
(0-24” samples)
61%
66%
21%
79%
64%
44%
43%
96%
73%
82%
47%
32% ND
78%
92%
67%
57%
94%
81%
92%
51% MN
69%
89% SD
48%
89%

30. % Soil Samples with Copper less than 0.5 ppmMB
Fall 2011 samples
13% 2%
(0-6” samples)
15% 8%
22% 3% 8%
12% 3% 2%
17% 3%
12%
27%
30% ND 7%
45%
10%
20%
17% 9%
21%
11% 7% MN 4% 5% SD 1% 4% 2% 0%

31. % Soil Samples with Boron less than 0.4 ppmMB
Fall 2011 samples 0%
(0-6” samples) 1% 4% 0%
10% 1% 2% 5% 3% 8% 5%
26% ND 3%
13%
42%
88% 4%
17%
58%
21%
19% MN
20% SD
15% 7%
30%

32. % Soil Samples with Salts greater than 1.0MB
Fall 2011 Samples
11%
21%
(0-6” samples)
18%
19%
33%
11% 7%
21%
14% 2%
15% 7%
36%
20% 4% ND 7% 3% 0% 1%
24%
18% 1% 3%
22% MN 9% 4% SD 1% 4%
11% 1% 2%

33. % Soil Samples with Salts greater than 1.0
“% Change from 2010” (more high salt fields) MB
Fall 2011 Samples
+5%
+12%
(0-6” samples)
+2%
+9%
+10%
+4%
+9%
-1%
-1%
+6% 7%
+10%
+7%
-3% ND 0%
+1% 0%
+1%
+10%
+8% 0% +3
+8% MN +3
+1% SD 1%
-3%
+6% 1%
+1%

34. % Soil Samples with Soil pH greater than 7.3MB
Fall 2011 samples
74%
96%
(0-6” samples)
82%
63%
80%
68%
76%
73%
75%
75%
56%
80%
96%
65% ND
38% 5%
42%
69%
82%
40%
64%
17%
23% MN
33%
58% SD
21%
25%
30%
26%
20%

35. % Soil Samples with Carbonate greater than 5.0%MB
Fall 2011 samples
22%
35%
(0-6” samples)
38%
18%
25% 8%
13%
13%
43% 9% 3%
22%
24% ND 5% 8%
25% 6% 5% 1% MN 6%
32% SD 1% 5%
10%