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Plants need food (nutrients) for healthy growth. The Rapitest Soil Test Kit is easy to use. This kit contains 40 tests. Will test for pH, Nitrogen, Phosphorus, and Potash. Gives accurate results in minutes! Soil should be tested periodically throughout the growing season, but it is especially recommended to test before planting in spring and when preparing soil in fall.
Nitrogen is responsible for producing leaf growth and green leaves.
Phosphorus is the major constituent of plant genetics and seed development.
Potash strengthens the plant.
pH level controls how well plants utilize the nutrients available in your soil.