Rapitest Soil Test Kit, 40 Tests - Luster Leaf (USA)

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