LaMotte STH Series - Manual (Page 24)

Fertilizer Application Rates
When interpreting soil test results to establish a fertilizer program,
a number of variables must be considered in addition to the values
obtained in the soil tests. These variables include the composition
of the soil, drainage, climate, previous fertilizer programs and soil
test results, and the type of plant to be grown. The table below
offers quick-reference guidelines correlating soil test results and
fertilizer application rates in a general manner. Supplement these
guidelines by reading the LaMotte Soil Handbook. Also consult
local agricultural services for advice on adapting these general
guidelines to the specific soils in your area.
General Guidelines for Fertilizer Application Rates
Nitrogen Phosphorus Potash
Test
Result
Add
(lb/acre)
Test
Result
Add
(lb/acre)
Test
Result
Add
(lb/acre)
10 220 10 260 100 180
20 180 25 220 140 150
40 130 50 180 180 130
60 110 75 150 220 110
100 90 100 130 300 90
150 40 150 90 400 70
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