Soil Test Kit
This soil test kit will take the guesswork out of gardening. It’s vital to know the existing pH, nitrogen, phosphorus and potash levels in garden soil. The soil’s pH controls the availability of these three nutrients essential to plant health. Test results allow the gardener to amend and fertilize appropriately, ensuring the best possible growing results. The soil test kit comes with 40 tests – 10 each of pH, nitrogen, phosphorus, and potash.