Designed for economical on-site evaluations of soil fertility, the NPK-1 test kit provides a simple, effective way for analysts to determine nitrogen (0-40 mg/L), phosphorus (0-40 mg/L), and potassium content of the soil. The Soil Fertility test kit also includes a Pocket Pro pH Tester for quick pH measurements.
| Application | Soil Fertility |
| Number of tests | 100 |
| Platform | Color Disc |
| What’s included? | Includes nine reagents, filter paper, measuring spoon, spatula, clippers, beaker, graduated cylinders, bottles, soil sieve, sprinkler cap, droppers, maker, demineralizer bottle, funnel, scoops, pH tester, viewing tubes, color discs, comparator box, dipstick, instructions, and carrying case. |

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