Please fill or choose the data marked red and try submitting again.
    AgriLife EXTENSION logo (Black)
    Texas AgriLife Extension Soil, Water and Forage Testing Laboratory Soil Fertility Recommendation Calculator
      Units Test Values* Critical Value Recs Units  
      Nitrate-N   ppm -
      Mehlich III Phosphorus ppm
      Mehlich III Potassium ppm
    Enter your soil test data in the red rectangles above.
    Select the drop down-menu from the following crop categories (select only one)
    Lawn or Gardens
    Forages
    Oil Crops
    Vegetable, Fruit and Nut Crops
    Rowcrops and Grains
    Landscape
    Fiber Crops
    Tree Production
    *Insure "Test Values" entered were measured using methods used by the Texas AgriLife Extension Soil, Water and Forage Testing Laboratory. Data acquired by other methods are not applicable.