The Luster Leaf 1601 Rapitest Soil Test Kit has fared well in both professional and consumer written reviews. The kit incorporates digital LED technology, which uses colors to decode test readings. Users have repeatedly praised the easy to use design of the kit. With the simple push a button, test results are delivered in under a minute. The kit’s testing catalog includes more than 450 popular plants that you can test pH preferences for, and an included instructional guide provides information on how to adjust soil conditions as needed.
Everything included in the test is color-coded, including the capsules and the color comparator films. All that is required is for you to take a sample of the soil you’d like to test, mix it with the appropriate amount of water, and then transfer the solution to the color comparator. Powder from the capsule is added to the color comparator, shake, and then watch the color begin to develop. Then, compare your test results to the included pH and NPK chart.
An instructional booklet comes with the Luster Leaf 1601 Rapitest Soil Test Kit, and it offers guidance on how to fertilize your soil based upon the results of your potash, nitrogen, and phosphorous test results. The testing kit will conduct 25 basic tests, with another 10 that test designed for pH alone and additional 5 solely for phosphorous, potash, and nitrogen.
Luster Leaf recommends that users test their soil regularly throughout the growing season, but at a minimum, it should be checked before planting in the spring and fall (depending on the plants you are putting down).
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Overall, the Luster Leaf 1601 Rapitest Soil Test Kit appears to be a highly rated and affordable test kit for determining soil conditions in residential settings. A small percentage of users have complained about the test kit’s reliability, but given the variation in soil from one geographic region to the next, inaccurate results cannot be blamed solely on the test kit alone. If you are looking for a straightforward, no-frills soil test kit, the Luster Leaf 1601 is a reliable option.