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 2012
AGVISE Laboratories %Zone or Grid Samples – Northwood laboratory % Grid or Zone Samples Tested Compared To Conventional Whole Field Composite Samples Tested
Fall 2012 samples Average Soil Nitrate following Wheat in 2012 (lb/a 0-24 samples) 35 43
Soil Nitrate Variability Between Fields Following WHEAT in Montana
Average Soil Nitrate following Wheat in 2012 Fall 2012 Samples (lb/a 0-24 samples) MB ND SD MN
Soil Nitrate Variability Between Fields Following Fallow in Montana
% Soil Samples with Phosphorus less than 10 ppm Fall 2012 samples (0-6) 66% 55% 35% 40% 43% (Olsen P test) 22%
56% 55% 66% 47% 68% 57% 78% 77% 69% 72% 34% 14% 20% 58% 50% 27% 60% % Soil Samples with Phosphorus less than 10 ppm Fall 2012 samples (0-6 samples) MB ND SD MN 38% (Olsen P test) 35% 67% 32% 36% 50% 46% 60% 57%47% 71% 36%
% Soil Samples with Potassium less than 150 ppm Fall 2012 samples (0-6) 6% 18% 2% 1% 8% 6%
21% 14% 3% 6% 7% 2% 48% 36% 17% 30% 32% 38% 11% 6% % Soil Samples with Potassium less than 150 ppm Fall 2012 samples (0-6 samples) MB ND SD MN 32% 11% 48% 21% 5% 35% 41% 31% 23% 4%1% 78% 77% 19%
% Soil Samples with Zinc less than 1.0 ppm Fall 2012 samples (0-6) 79% 56% 81% 91% 62% 46%
65% 56% 72% 54% 77% 86% 83% 65% 78% 35% 24% 35% 32% 59% 53% 49% 66% % Soil Samples with Zinc less than 1.0 ppm Fall 2012 samples (0-6 samples) MB ND SD MN 34% 35% 26% 59% 20% 36% 50% 49% 74% 91% 22% 44% 65%
% Soil Samples with Sulfur less than 15 lb/a Fall 2012 samples (0-6) 55% 22% 42% 52% 19% 34%
8% 14% 18% 49% 40% 54% 22% 21% 9% 12% 10% 5% 9% 7% 11% 15% 12% % Soil Samples with Sulfur less than 15 lb/a Fall 2012 samples (0-6 samples) MB ND SD MN 10% 46% 49% 69% 27% 38% 32% 44% 29% 19% 20% 59% 67%
% Soil Samples with Copper less than 0.5 ppm Fall 2012 samples (0-6) 4% 1% 0% 1%
12% 17% 7% 13% 10% 2% 1% 4% 20% 29% 26% 5% 0% 2% 5% 16% 14% 26% 24% 10% 12% % Soil Samples with Copper less than 0.5 ppm Fall 2012 samples (0-6 samples) MB ND SD MN 15% 7% 10% 5% 14% 45% 41% 4%
% Soil Samples with Boron less than 0.4 ppm Fall 2012 samples (0-6) 9% 2% 6% 19% 4%
3% 7% 5% 2% 15% 2% 39% 5% 1% 13% 4% 1% 8% 2% % Soil Samples with Boron less than 0.4 ppm Fall 2012 samples (0-6 samples) MB ND SD MN 1% 9% 47% 75% 17% 9%8% 12% 9% 35% 27% 4% 0%
% Soil Samples with Chloride less than 40 lb/a Fall 2012 samples (0-6) 76% 62% 78% 77% 52% 62%
48% 38% 56% 59% 87% 85% 89% 65% 84% 41% 20% 77% 70% 57% 44% 30% 47% 13% 78% 55% 42% 59% % Soil Samples with Chloride less than 40 lb/a Fall 2012 Samples (0-24 samples) MB ND SD MN 51% 78% 85% 34% 57% 63%
% Soil Samples with Carbonate greater than 5.0% Fall 2012 samples (0-6) 16% 10% 21% 3% 44% 3%
12% 26% 10% 6% 7% 10% 29% 23% 44% 4% 9% 2% 17% 40% 22% 14% 10% % Soil Samples with Carbonate greater than 5.0% Fall 2012 samples (0-6 samples) MB ND SD MN 36% 1% 10% 24% 55% 13% 3% 1% 3% 9% 6%
% Soil Samples with Salts greater than 1.0 mmhos/cm Fall 2012 samples (0-6) 4% 8% 4% 8% 4%
27% 37% 15% 10% 1% 4% 2% 8% 1% 4% 19% 3% 11% 2% 21% 17% 12% 23% 17% 8% 10% % Soil Samples with Salts greater than 1.0 Fall 2012 Samples (0-6 samples) MB ND SD MN 11% 12% 7% 6% 2% 0% 6% 17% 21%
% Soil Samples with soil pH greater than 7.3 Fall 2012 samples (0-6) 78% 81% 72% 56% 86% 63%
65% 76% 70% 38% 35% 39% 62% 51% 25% 54% 79% 96% 43% 36% 22% 23% 75% 72% 74% 82% 42% 71% % Soil Samples with Soil pH greater than 7.3 Fall 2012 samples (0-6 samples) MB ND SD MN 65% 27% 34% 23% 15% 6% 67% 92% 84%
% Soil Samples with %OM less than 3.0% Fall 2012 samples (0-6) 86% 85% 76% 96% 90% 47%
26% 22% 33% 25% 38% 60% 71% 43% 28% 21% 25% 17% 33% 8% 20% 29% % Soil Samples with %OM less than 3.0% Fall 2012 Samples (0-6 samples) MB ND SD MN 9% 3% 9% 75% 26% 17% 9% 28% 26% 55% 12% 26% 13%
Zip codes for Montana