SOIL TEST KIT

This revolutionary kit takes the guesswork out of determining whether your soil needs pH adjusting or whether nitrogen, phosphorus and potassium (potash) should be added in the form of fertilizers. Just mix soil and water, pour off the solution into the comparator, add the contents of one capsule, shake, and compare to color chart. Contains supplies for 40 tests, 10 each for pH, N, P, and K.