Soil tests can help homeowners develop programs best suited for their individual lawns, particularly when they are accompanied by a prescription that outlines what needs to be done. Richard Tighe, owner of a lawn-care business in Ontario, has made that easier. He co-wrote a software program to accompany the test that highlights the soil's deficiencies and imbalances. With that information, homeowners can apply the right combination of fertilizers to help keep the lawn thick and healthy.

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