Rapitest Soil Tester
This may just be the best $7.87 you can spend for a healthy and productive garden.
Plants need nitrogen, Phosphorus and Potash for healthy plant growth. nitrogen is directly responsable for healthy green leaves. Phosphorus s vital for strong, supportive root systems. Potash is essential for flower and fruit development. Plants also require the correct pH level(the realitive amount of hdrogen in a substance) to control how the utilize the Nitrogen, Phoshorus and Potash availaable to them. All plants have a pH preference, so it is important to know the pH level to your soil. you can then choose plants with the same pH preferance or change the pH to meet the requirments of the plants n your garden.
This kit can make ten tests.