Hanna Instruments HI3896

The chemical composition of soil includes pH and chemical elements. Soil analysis is necessary for better management of fertilization and to know the residues of fertilizers in relation to the crop, tillage and the most suitable plant choice for soil composition. An analysis can highlight shortages and help the understanding of the causes of an abnormal growth. By using the Hanna Soiltest, it is possible to measure pH and the most important elements for plant growth, that is, nitrogen (N), phosphorus (P) and potassium (K). Testing the soil during each crop cycle and comparing the results with plant growth can be a useful experiment for subsequent cultivations. Kit includes 120mL extraction solution (2), 70mL pH indicator, 75 powder packets (25 each for N,P and K), 1mL pipettes (3), test tubes (5), test tube stand, spoon, brush, color cards (4), graduated card and handbook. Range: traces, low, medium, high for Nitrogen, Phosphorus and Potassium; 4 to 9 pH for pH. Method: Colorimetric for Nitrogen, Phosphorus and pH; Turbidimetric for Potassium. 1 pH Smallest Increment for pH. Chemical Method: Ned for Nitrogen, pH Indicator for pH, Ascorbic Acid for Phosphorus, Tetraphenylborate for Potassium. 100 Tests, 25 tests for each. 710 grams.