It is essential to know the existing levels of pH, nitrogen (N), phosphorus (P), and potash (K) in garden soil. The fastest soil test kit continues to be the standard for home soil testing. The kit includes all the components required for (40) tests (10) each for pH, nitrogen, phosphorus and potash. The patented colour comparison system allows easy colour comparison against a typical printed colour chart. Detailed but simple instructions are provided with recommendations for over 400 plants. Test results allow the gardener to modify and process appropriately, ensuring the best possible results