N-TRACKER
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      • ORIGIN
      • HISTORY
      • DATA USE AGREEMENT
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      • SOIL TESTS >
        • LABS USED
        • TESTS PERFORMED
        • SAMPLING DATES
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N-TRACKER Plus is based upon multiple sampling dates from harvest to tassel emergence.  Samples collected are submitted to KSI Soil Laboratory where selected tests are performed.  Plant analysis is performed on whole plants at V3 to V5 Growth Stage and on the leaf opposite and below the ear just prior to or at Tasseling (VT).  

FIRST SAMPLING DATE

FOLLOWING SAMPLING DATES


SAMPLING DEPTH
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
Same as First Sampling Date

PLANT ANALYSIS

SAMPLING DATE #2:  Growth Stage V3 to V5
Whole plant (cut at soil line):  Full analysis

SAMPLING DATE #3:  Growth Stage VT
Leaf opposite and below ear:  Full analysis
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Dr. Howard Brown                  
Illini FS                                 
1509 East University Ave.   
​Urbana, IL  61802                 
hbrown@illinifs.com               
217-649-3527                      
  • Home
  • NUTRIENTS BY REMOVAL
    • CROP REMOVAL
  • SOIL TESTING REINVENTED
    • SOIL TESTING REINVENTED
  • NuTRACKER Plus
    • ABOUT >
      • ORIGIN
      • HISTORY
      • DATA USE AGREEMENT
      • REPORT REVIEWER
      • HOW TO PARTICIPATE
      • SOIL TESTS >
        • LABS USED
        • TESTS PERFORMED
        • SAMPLING DATES
      • PROGRAM COST
    • REGISTER A SITE >
      • ILLINI FS
      • NEW CENTURY FS
      • SUNRISE FS
      • HERITAGE FS, INC.
  • ON-FARM DISCOVERY
    • 2018 - 2021 REPORTs
  • OUTREACH
    • HIGH SCHOOL OUTREACH
    • NITROGEN NINJA