LaMotte Soil Chemistry Test Equipment - Manual (Page 9)

LIME-ALUM TABLES
Once the pH of a soil is known, the Lime-Alum Tables are used to
determine the average amount of lime or alum necessary to properly
adjust the soil pH.
Group A
Plants
pH Test
Reading
Rate Of Application
lbs/sq yd lbs/1000 sq ft tons/acre
4.0 1.5 Limestone 165 Limestone 3.5 Limestone
5.0 1.0 Limestone 110 Limestone 2.0 Limestone
6.0 0.5 Limestone 55 Limestone 1.0 Limestone
7.0 None None None
8.0 None None None
Group B
Plants
pH Test
Reading
Rate Of Application
lbs/sq yd lbs/1000 sq ft tons/acre
4.0 0.75 Limestone 82.5 Limestone 1.5 Limestone
5.0 0.25 Limestone 27.5 Limestone 0.5 Limestone
6.0 None None None
7.0 1.0 Alum 110 Alum 2.0 Alum
8.0 2.0 Alum 220 Alum 4.0 Alum
The Average Rates presented here assume the following conditions:
intermediate soil texture, temperate climate, and moderate rainfall. Regular
soil testing before and after lime or alum applications will permit you to
adjust these suggested application rates to suit your particular soil
conditions.
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