Table 3 - Iron Chlorosis

    Table 3 - Iron Chlorosis

    Combined iron sulfate and elemental sulfur requirements for the treatment of individual trees and shrubs by the soil application method.*


     
    Trunk diameter (inches)
    Number of 1 to 2 inch diameter holes made in soil within the drip line
    Pounds of combined elemental sulfur and iron sulfate
     
    1
    4
    0.5 - 1.0
    2
    6
    1 - 2
    4
    8
    3 - 6
    6
    12
    8 - 12
    8
    16 - 24
    12 - 16
    10
    25 - 30
    16 - 20
    15
    30 - 40
    20 - 30
    20
    40 - 50
    30 - 40
         

    * Holes should be 12 -18 inches deep.

    Updated 7/15/02