i bought a soil test kit at Lowe's. It tests for pH, nitrogen, and 2 others. It has 4 small bottles and what looks like a pill inside the bottle. Are those reliable or should i take the soil to my local extension?
Also, i just fertilized my lawn last week. Should I wait a couple more weeks before doing the soil test? I don't want to skew the results, because the fertilizer I applied was nitrogen heavy.