Digital Soil Test Mini Lab Reagent Digital Soil Test Mini Lab Reagent is a set of reagents required for the Digital Soil Test Mini Lab. it consit of the regent to test 14 paramenters for 50 Soil samples.14 Parameters Tested by Harvesto Soil Lab:Available Organic Carbon (OC)Available Nitrogen (N)Available Phosphorus (P)Available Potassium (K)Available Zinc (Zn)Available Sulphur (S)Available Boron (B)Available Copper (Cu)Available Iron (Fe)Available Manganese (Mn)Electrical Conductivity (EC)Lime requirement test for Acidic SoilGypsum requirement test for alkaline soil *