Soil analysis outfit includes all of the materials needed for accurate and detailed soil evaluation Determines soil pH, nitrogen, phosphorus, potassium content and soil texture Each self-contained, individual module contains the necessary materials and equipment to conduct 50 tests All components are contained in a specially designed, rugged carrying case Includes the LaMotte Soil Handbook and downloadable free resource, A Study of Soil Science Octa Slide Comparator Test Factor: pH (40 tests) Range: 3.8-9.6 Color Chart Test Factor: Nitrogen / Phosphorus (50 tests ea.) Range: 10-150 lb/acre / 10-200 lb/acre Turbidity Column Test Factor: Potassium (30 tests) Range: 100-400 lb./acre Order Info Grades 6+.