Luster Leaf® Rapitest® Soil Test Kit is an innovative soil testing kit designed to measure soil pH, Nitrogen, Phosphorous, and Potash levels. It provides a simple, fast, and accurate way to understand existing soil conditions so you can amend and fertilize appropriately for better plant growth. The kit uses a patented colour comparator system with an easy-to-use capsule method - take a soil sample, mix with water, add a capsule, and compare the developed colour to determine results.
It includes materials for 40 total tests, with 10 tests each for pH, nitrogen, phosphorus, and potash. The kit also features charts covering more than 100 plants, along with complete instructions and recommendations for adjusting soil conditions.