Chemical soil tests measure the relative nutrient
status of the soil and assist in making
recommendations for efficient and safe use of
fertilizer and lime. Soil testing procedures have now
progressed to the stage where the measurement of
nutrient deficiencies as well as excesses is possible.
The University of Minnesota Soil Testing
Laboratory has given assistance to homeowners
and turf managers since its establishment in 1950.
Lime and fertilizer recommendations were originally
prepared by soil scientists at the laboratory, and
then from 1955 to 1972, by county extension agents.
A computerized recommendation program for
garden and lawn samples was introduced in 1972.
The computer program was designed to give
recommendations, based on the individual
customer's situation, faster and more efficiently
than previously possible.
Soil test results have been summarized
periodically since the establishment of the
University of Minnesota Soil Testing Laboratory.
The summaries published in 1964 reflected the
native fertility of Minnesota soils (4). Occasionally,
soil test results of samples received from Hennepin
and Ramsey counties have been summarized to
illustrate soil fertility problems encountered in the
Twin City metropolitan area (Grava, J., 1958 and
1969, unpublished data). Soil test summaries are
useful to the fertilizer and lime industries by
pointing out areas of greatest need for their
products. Extension personnel, teachers, and
students find summary data helpful as teaching
The data reported here summarize 19,224 test
results for garden and lawn soil samples received
between April1, 1972, and December 31, 1976, by
the University of Minnesota Soil Testing Laboratory.
This report presents, in a general way, the fertility
status of garden and lawn soils of Minnesota.
Grava, John; Fenster, William E..
Fertility Levels of Minnesota Lawn and Garden Soils, 1972-76.
Minnesota Agricultural Experiment Station.
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