Contains forty tests for four key soil elements: pH, N, P and K; with separate comparators for each test. Includes complete instructions for adjusting soil conditions and fertilization.
- Innovative and inexpensive soil test kit features an easy-to-use capsule system and color comparators
- Contains tests for pH, nitrogen, pHospHorus, and potassium levels, 40 tests in total
- Also has a chart of pH and NPK levels for more than 100 plants
- Simple, fast, and accurate results, no experience required to perform tests
- Includes complete instructions for adjusting soil conditions