They will evaluate the soil and give you recommendations for amendments and fertilizers. [substeps] Cooperative extension offices test and study agriculture and the environment and can be found at certain universities.
[header] How to prepare soil for the application of fertiliser [title] Send a sample of soil to a local cooperative extension. [step] Collect a sample of your soil by digging a couple of holes that are 5-6 inches (13-15 cm) deep. Then, store the soil in an airtight plastic container or sealable bag and send it to the cooperative extension for tests.