N-TRACKER Plus is based upon multiple sampling dates from harvest to tassel emergence. Samples collected are submitted to a laboratory where selected tests are performed. The depth of sample collection and the type of tests performed will vary according to the time of sample collection. Below is a description of differences between the first sampling date and following sampling dates.
FIRST SAMPLING DATE |
FOLLOWING SAMPLING DATES |
|
SAMPLING DEPTH
0 - 7 Inches 0 - 12 Inches 12 - 24 Inches |
SAMPLING DEPTH
0 - 12 Inches 12 - 24 Inches |
TESTS PERFORMED |
TESTS PERFORMED |
|
Nitrate-N
Ammonium-N Sulfur Boron Soil Organic Matter pH Phosphorus Potassium |
pH
Buffer pH Calcium Magnesium Cation Exchange Capacity Base Saturation Zinc Manganese |
Nitrate-N
Ammonium-N Sulfur Boron |