AccuGrow™  pH*N*P*K features four different tests:  pH, Nitrogen, Phosphorus, and Potassium.  pH is not a nutrient, rather it is a measurement of soil acidity or alkalinity.  It determines how well your plants are able to use the nutrients in the soil.  Nitrogen promotes healthy, green foliage.  Phosphorus is essential for strong root formation and root system development.  Potassium is responsible for seed formation and germination in flowers, fruits, and vegetables.

Each AccuGrow™  pH*N*P*K test kit provides 10 tests each for soil pH, Nitrogen, Phosphorus and Potassium.  It also includes a 20-page Garden Care Guide and test log.