LaMotte Soil pH Test Kit ST-T User Manual
Page 4
· pH 5.0 Acid (sour). Needs lime for plants in
Groups A and B.
· pH 6.0 Slight Acid (sour). Needs lime for plants
in Group A only.
· pH 7.0 Neutral. Needs no lime for plants in
Group A.
· pH 8.0 Alkaline (sweet). Needs no lime. Needs
some souring material for most plants.
To adjust the soil pH to favor your plants, refer to the
plant preference list in the LaMotte Soil Handbook
(1504) and determine which group these plants belong
to. Then consult the lime-alum tables and determine
any adjustment in soil reaction necessary to give the
best results.
It is sometimes desired to make an on-the-spot check
for soil pH without previous preparation of a soil
sample. This may be done following the regular test
procedure, but avoiding soils with an excessive amount
of moisture. The resulting reading should be checked
later using the recommended procedure for a prepared
soil sample.
LaMOTTE COM PANY
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PO Box 329 • Chestertown • Mary land • 21620 • USA
800-344-3100 • 410-778-3100 (Out side U.S.A.) • Fax 410-778-6394
Visit us on the web at www.lamotte.com
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