Students can perform up to fifty tests each for nitrogen, phosphorus, and potassium levels using non-hazardous TesTabs ®. Each kit includes the necessary apparatus, simple diagrammed instructions, and a laminated color chart.

This NPK soil test kit that tells you exactly which fertilizer you need – nitrogen, phosphorus or potassium. 100% satisfaction guaranteed.

Soil Test Kit, Rapid Measurement of NPK Levels, Develop Quality Soil Complete Kit for Accurate Soil Fertility Measurement for Flowers Vegetables Trees

The HI3896 is a chemical test kit that uses colorimetry and turbidimetry to measure four parameters common in soil testing: nitrogen, phosphorus, potassium, and pH. The HI3896 is supplied with all of the necessary reagents and equipment to perform each analysis, and all reagents are individually available as they run out.

Milwaukee MT6003 NPK Soil Test Kit allows one to measure the concentration of the three elements N, P, K in a soil sample. Simple-to-use reagent kit. Pre-made reagents for precision and ease-of-use.

This safe, easy, and economical Nitrogen, Phosphorus, Potassium (NPK) Soil Test Kit contains all the supplies needed to perform 50 tests each for soil nitrogen, phosphorus, and potassium. Diagrammed instructions, a laminated color chart, and test tablets are all included.

The kit includes a pH test chamber and reagents for measuring soil pH levels. The pH scale ranges from acidic (0-7) to alkaline (7-14). Understanding your soil's pH helps you adjust it to the optimal range for the specific plants you wish to grow.

Kit, NPK Soil Test: Includes: The necessary apparatus, simple diagrammed instructions, and a laminated color chart