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Luster Leaf 1601 Rapitest Test Kit for Soil pH, Nitrogen, Phosphorous and Potash, 1 Pack
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
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Brand | Luster Leaf |
Product Dimensions | 2"W x 9"H |
Item Weight | 4 ounces |
About this item
- Quick, at home results for Soil pH, Nitrogen, Phosphrous and Potash
- Innovative and inexpensive soil test kit features an easy-to-use capsule system and patented color comparators
- Contains all components needed for 40 tests. 10 for each of pH, N, P and K
- Simple, detailed instructions included. Great for beginners and experienced gardeners alike.
- Soil pH preference list for over 450 plants included
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From the manufacturer
Soil Testing
Why Test Your Soil?
Plants need food (nutrients) for healthy growth. Nitrogen, Phosphorus and Potash (N, P and K), play a vital role in plant growth just as vitamins, minerals, carbohydrates and protein do in our health.
How to Test Your Soil
For gardeners already familiar with soil testing, you'll appreciate the unique, patented, specially designed "color comparator" and capsule system, that make quick work of testing. For those of you new to soil testing, you will appreciate this easy, fast and fun way to achieve better growing results from your gardening efforts!
Everything is color-coded, including the color comparator films and capsules. All you do is take a sample of soil, mix with water, transfer some of the solution to the color comparator, add powder from capsule, shake and watch the color develop. Then, note your test results. Fast, easy and it only takes a few minutes!
When To Test Your Soil
Soil should be tested periodically throughout the growing season, but it is especially recommended to test before planting in the Spring and when preparing beds in Fall.
Included in the Kit:
- 4 Color Comparators
- Eye dropper for easy solution transfer
- 40 test capsules - 10 for each of pH, N, P, K
- Complete instructions and Fertilization guidelines
- pH preference list for over 450 plants
Soil Elements
N - Nitrogen
Nitrogen is synonymous with plant nutrition. It is directly responsible for producing leaf growth and green leaves. A deficiency causes yellow leaves and stunted growth. Too much nitrogen causes overabundant foliage with delayed flowering; the plant becomes subject to disease and its fruit is of poor quality.
P - Phosphorus
Growing plants need phosphorus. It is the major constituent of plant genetics and seed development. A deficiency causes stunted growth and seed sterility. Phosphorus aids plant maturity, increases the seed yield, increases fruit development, increases vitamin content and aids the plant's resistance to disease and winterkill.
K - Potash
Potash strengthens the plant. It helps form carbohydrates and promotes protein synthesis. It will improve the color and flavor of fruit. It further aids early growth, stem strength and cold hardiness. Plants deficient in potash are usually stunted and have poorly developed root systems. Leaves are spotted, curled and appear dried out at the edges. Yields for potash deficiency are low.
pH - Acidity / Alkalinity
Plants also need the correct pH level which controls how well plants utilize the nutrients available in your soil. All plants have a pH preference, so it is important to know the pH level of your soil. You can then choose plants with the same pH preference, avoid those that will not do well in your soil or know how to go about supplying their special growing needs. By testing your soil, you determine its exact condition so that you can fertilize and/or adjust pH more accurately, effectively, and economically.
Videos
Videos for this product
5:07
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Testing your soil, 2 different procedures | DEMO
✅ Matt Donley
Videos for this product
1:34
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Luster Leaf 1601 Rapitest Test Kit for Soil Review!
Charles Bost
Videos for this product
4:38
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Luster Leaf 1602 Soil Test Kit 20 Tests Review
From the Family
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1:29
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The Best Way To Test Your Soil!
🟢Blake's Real Reviews
Product information
Product Dimensions | 9 x 2 x 9 inches |
---|---|
Item Weight | 4 ounces |
Department | Unisex-Adult |
Manufacturer | Luster Leaf |
ASIN | B0000DI845 |
Item model number | 1601 |
Customer Reviews |
4.2 out of 5 stars |
Best Sellers Rank | #223 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #1 in Soil Test Kits |
Is Discontinued By Manufacturer | No |
Warranty & Support
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Product Description
It’s vital to know the existing pH, Nitrogen (N), Phosphorous (P) and Potash (K) levels in garden soil. The rapitest Soil Test Kit continues to be the standard for home soil testing. The kit includes all components needed to for (40) tests: (10) each for pH, Nitrogen, Phosphorus and Potash. The patented color comparator system allows for easy color comparisons versus a typical printed color chart. Extensive, yet simple, instructions are included along with recommendations for over 400 plants. Test results allow the gardener the amend and fertilize appropriately, ensuring the best possible results
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers are happy with value, and ease of use of the product. They mention that it's easy to set up and use. However, some customers have reported issues with the ph reading, saying that their soil was extremely deficient in nitrogen. They also dislike the color, and opinions are mixed on quality, readability, speed, and accuracy.
AI-generated from the text of customer reviews
Customers find the soil tester kit easy to use. They say the instructions are straightforward and the testing process is fairly straightforward. Customers also say the guide is detailed and efficient.
"...It’s a practical, user-friendly tool that delivers reliable results, and it’s definitely a worthwhile investment for anyone serious about gardening." Read more
"...The guide is very detailed and efficient and after readings it twice or thrice the process is very simple and the results are quite clear..." Read more
"Fun kit. Many steps but the instructions are very straightforward. Annoyingly, the kit is one potash (orange) capsule short." Read more
"...All of this requires a bit of critical thinking, and if you don't like this kind of stuff you will be frustrated and unsure...." Read more
Customers find the value of the book to be inexpensive and easy to read. They also say it's a worthwhile investment for anyone serious about gardening.
"...tool that delivers reliable results, and it’s definitely a worthwhile investment for anyone serious about gardening." Read more
"...The tests are fairly straight forward, easy to use, and inexpensive. I took off one star because of a few frustrations I had with the kit...." Read more
"...I'm just going with multi-indicator pH paper. It's cheap and easy to read." Read more
"...At 30 seconds, it's at the opposite extreme. And npk all show as surplus, when checking Bergers potting mix that is supposed to be nutrient free...." Read more
Customers are mixed about the quality of the product. Some mention that the results are basic, but gives them a better idea of what soil type they're working with. They say that it works well for determining what amendments to add to the soil and is useful for follow up after adding nutrients. However, others say that the product has a very limited amount of tests, which is not good if you want to monitor a specific soil. Some customers also say that some test results were ambiguous and inconclusive.
"...this soil testing kit from Amazon, and I’m thoroughly impressed with its performance and ease of use. The kit arrived promptly and was well-packaged...." Read more
"...All in all, if the results are indeed accurate, I think the kit is very good, but what I particularly miss is the option to purchase supplemental..." Read more
"...Uninteresting. Incomprehensible...." Read more
"This item worked great. Really helped me to figure out what my garden soil needed. Prepping my soul now based off the results from this test kit...." Read more
Customers are mixed about the accuracy of the product. Some mention that it was very accurate and gave them great insight as to why their yard. However, others say that the concentrations and results are questionable, difficult to discern, and require a bit of interpretation.
"The results are questionable. Support so far is non existent. Ph readings at 15 seconds is at one extreme...." Read more
"...and potassium were simple to perform and provided quick, accurate results...." Read more
"...The results you get will not be numerical...." Read more
"...it twice or thrice the process is very simple and the results are quite clear..." Read more
Customers are mixed about the readability of the product. Some mention it's easy to use, read the indicators, and get a good reading, while others say that it'd be difficult to read the results with red clay and some black garden soil. They also mention that the shading is a little difficult to see, and the instructions are simple to understand.
"...while developing in the allotted time, are not very strong and difficult to read...." Read more
"...Repeatable results and easy to read data.The price drops a bit more on the bigger packs...." Read more
"...a test with food color and the green is indeed high ph, and orange read as extremely low...." Read more
"...reaction has taken place inside the test chamber, it is fairly easy to read. In my case, my suspicions regarding poor nitrogen were confirmed...." Read more
Customers are mixed about the speed of the product. Some mention that they like the quickness of the results and the color coordinated usage, while others say that the Rapid part of Rapidtest is misleading. They mention that the tests are not very rapid or convenient to do, and that it takes a while to prepare each sample.
"...pH, nitrogen, phosphorus, and potassium were simple to perform and provided quick, accurate results...." Read more
"...It is not an instant process as you are required to stir your soil sample with water and allow it to settle before mixing a test capsule with the..." Read more
"...The tests can be done quickly, but it takes about a day to get the soil ready for the test...." Read more
"...The main complaint seem to be to difficulty in extracting the testing powder from the capsules...." Read more
Customers find the color of the product to be difficult to determine. They mention that the color shades are very similar to each other, making it hard to interpret the results. Some customers also mention that it didn't change the water color at all.
"...My pH color did not match exactly any of the 5 shades. I guess it was close to 6.5 but I definitely am not 100% certain...." Read more
"...Anything. What I got instead was a test mixture clearer and with less color than not only the lowest reading the tester allowed for but also less..." Read more
"...We had very minimal if any color change and so it made the exercise actually worthless...." Read more
"This kit uses color-coding to be sure you put the right things in the right place. The instructions are clear...." Read more
Customers are dissatisfied with the ph reading. They mention that the soil is extremely deficient in nitrogen, phosphorous, and potassium. They also say the test ran low and the contents of the nitrogen testing capsules degraded.
"...of Nitrogen (which turned out to be correct), but Deficient in Potassium and Phosphorus...." Read more
"...some of the nitrogen capsules had no effect... even when i added nitrogen to the sample. clearly there are problems here...." Read more
"...The tests for pH, nitrogen, phosphorus, and potassium were simple to perform and provided quick, accurate results...." Read more
"...A flaw we found was that the pH test doesn't go high enough. We found out that our sample was alkaline, but the scale only goes to 7.5...." Read more
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I used the kit to test the soil in my garden, and the results were both enlightening and helpful. The tests for pH, nitrogen, phosphorus, and potassium were simple to perform and provided quick, accurate results. This information has been invaluable in helping me understand my soil’s needs and in making informed decisions on how to improve its quality for better plant growth.
What I particularly appreciate about this kit is its comprehensive nature – it covers all the essential elements that affect soil health. Plus, the durability and quality of the components assure me that I can use this kit for seasons to come.
In summary, I highly recommend this soil testing kit to any gardener or homeowner looking to gain a better understanding of their soil’s condition. It’s a practical, user-friendly tool that delivers reliable results, and it’s definitely a worthwhile investment for anyone serious about gardening.
All in all, if the results are indeed accurate, I think the kit is very good, but what I particularly miss is the option to purchase supplemental capsules (those containing the powder). 10 for each test isn't enough, especially if you need to make repeating tests. I don't think I will buy the whole kit again just for the capsules themselves.
In hindsight a wise soil chemist could have likely named the issue - deficiencies in crucial nutirents and a pH problem - just by looking at the weeds in the lawn. I am not a soil chemist. Other than the blonde in the front row of freshman chemistry which was only offered at 7.30am I found most of the class boring. Uninteresting. Incomprehensible. I would have flunked if it were not for her being assigned my lab section and giving me a reason to attend a 2.30pm Friday lab.
While her name is long forgotten to the nearly three decades since that class, two things I did not forget: the way she looked at me with utter disgust one of the many times I failed to offer an even halfway compentent response to question, and the importance of following directions in chemistry experiments in order to obtain accurate results.
Not being a soil chemist I did the test - on two different areas of my 3,000 square foot lawn. And what I found was that despite my poor attempts at regular lime applications the pH was 5.5. And my occasional and relatively inconsistent application of whatever fertilizer was both in season and on sale left me with a complete and utter deficiency in Nitrogen and Potassium (the N and the P of the N-P-K number). Which - as any soil chemist will tell you - results in the perfect growing conditions for goosegrass and violets - two realtively common weeds that are a regular sight in my lawn.
In conclusion - think of this handy soil test as an insurance policy against applications of the wrong fertilizer - or in this case - insurance against wasting money applying fertilizer when the pH is 5.5. And oh yeah - perhaps I should do something about my longstanding policy of being utterly ignorant about chemistry.
Reviewed in the United States on February 20, 2024