[CH] lime
Byron Bromley (Byron.Bromley@gsd-co.com)
Mon, 31 Jan 2000 10:32:50 -0500
Dr. G Thanks for reminding me.
Folks before you add lime, take or get a soil pH sample/reading done first.
Many areas the soil pH is alkaline to begin with, adding lime will make it
worse.
Here is a soil pH adjustment chart
Adjusting soil ph
pH..Change....Material......Sandy......Loam......Clay
..............used..........loam.......soil......soil
from..to.....................lbs to apply per 100 sq ft
7.5...6.5....Sulfur*.........1 1/2.....2..........2 1/2
7.0...6.5....Sulfur*.........1/4.......1/2........3/4
6.5...6.5..........................................
6.0...6.5....Limestone.......3.........4..........6
5.5...6.5....Limestone.......5.........8..........11
5.0...6.5....Limestone.......7........11.........15
4.5...6.5....Limestone.......10......13.........20
4.9...6.5....Limestone.......12......16.........23
* Iron Sulfate or Aluminum sulfate may be substituted but
will require 2 1/2 times more material to make the equivalent pH
change. Aluminum sulphate will increase the salt level of your soil.
DO NOT Apply more that 1 LB sulfer or 5 lb Limestone per 100 sq ft
at 1 time, Split spring and fall applications over several years
Byron