Soil Macronutrient NPK Test Kit

This Soil Macronutrient Test Kit allows students to analyze soil samples for nitrogen, phosphorus, and potassium (NPK) levels, the three primary nutrients required for plant health. Students determine whether NPK concentrations in soil are abundant, adequate, or deficient, helping identify nutrient imbalances before they affect plant growth. Suitable for teaching agriculture, soil science, and environmental chemistry through practical hands-on experiments. Includes supplies for classroom soil testing. For laboratory use only.