Soil testing laboratories provide a variety of soil analysis services. Tests recommended for lawns, gardens, and landscapes should include soil pH, the macronutrients nitrogen, phosphorus, and potassium, soil pH, and salinity.
What does the laboratory test and how?
The process requires mixing several random soil samples (see instructions on submission packet) before submitting for testing. Results of the test give information to assist the homeowner in developing a fertilization program.
Since each soil testing laboratory may use different testing …