Luster Leaf Soil Test Kit 200 Tests pH-N-P-K

Soil Test Kit from Environmental Concepts is a liquid based testing kit which is great for classrooms and professionals. In contains all components needed for a total of 20 tests. 50 each for soil pH, Nitrogen, Phosphorus and Potash. It also comes packed in a sturdy carrying case. Detailed instructions are included along with extensive guidelines for altering soil and using the best plants for your soil environment.