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.

The HI3896 Hanna Soil Test Kit is designed for educators and environmental science students to test four important parameters monitored in soil quality: nitrogen, phosphorus, pH, and potassium.

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

By using Hanna’s Quick Soil Test Kit, it is possible to measure pH and the most important elements for plant growth: nitrogen (N), phosphorus (P), and potassium (K).This kit is equipped with all the necessary reagents and equipment to perform over 10 tests for each parameter.

Achieve healthier plants with precise soil testing using the HI3895 NPK Soil Chemical Test Kit. Measure nitrogen, phosphorus, potassium, and pH levels accurately for better gardening results. The HI3895 is a chemical test kit for the determination of commonly monitored parameters in …

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. Marked with expiration date and lot number for traceability.

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.