N-TRACKER
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      • ORIGIN
      • HISTORY
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  • ON-FARM DISCOVERY
    • 2018 - 2021 REPORTs
  • OUTREACH
    • HIGH SCHOOL OUTREACH
    • NITROGEN NINJA

NUTRIENT RECOMMENDATIONS BY REMOVAL

Build-up and Maintenance has been, and remains the recommendation system used to determine the amount of phosphorus and potassium since the early 1970s.  It is based upon building soil tests to specific optimum levels and uses broad estimates of soil's Phosphorus Supplying Power (phosphorus) and Cation Exchange Capacity (potassium) to generate specific application rates, along with an allowance for soil fixation prior to plant utilization.  

New technologies now allow us to be site-specific when it comes to harvest yield and nutrient removal.  Rather than estimate nutrient needs with soil tests that roughly estimate plant-available nutrients with little correlation to harvest yield, why not take advantage of data collection and start basing nutrient needs upon what the crop removes each growing season?  Makes sense and it works!  Below are the most recent nutrient removal rates released by Midwest Land Grant Universities.

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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