Contact us at:

hydroseedingassoc@yahoo.com
(412) 241-2340

Soil Acidity

How to Increase Soil pH - pounds of limestone/1000 sq ft
Sq. Feet Sandy soil Loam Soil Clay Soil
Present pH to pH 6.5 to pH 6.5 to pH 6.5
4.8 85 140 200
4.9 80 130 185
5.0 75 128 175
5.1 70 115 160
5.2 65 110 150
5.3 60 100 135
5.4 55 95 125
5.5 50 85 110
5.6 45 80 100
5.7 40 70 90
5.8 35 65 80
5.9 30 55 70
60 25 50 60
6.1 20 40 50
6.2 15 35 40
6.3 10 25 30
6.4 5 15 20

 

How to decrease Soil pH - pounds of limestone/1000 sq ft
Current pH Target pH Using Sulfur Using Alum sulfate
8.0 6.5 20 40
  6.0 30 60
  5.5 40 80
  5.0 50 100
7.5 6.5 12.5 25
  6 25 50
  5.5 35 70
  5.0 45 90
7.0 6.0 12.5 25
  5.5   50
  5.0   70
6.0 5.0 20 40
5.5 5.0 10 20