Fertilizer application rates – LaMotte STH Series User Manual
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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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