| The Rapitest Soil Test Kit is designed for simplicity of use and accurate results.
The soil test kit contains 4 patented, specially designed soil testing devices called "color comparators" - for pH, Nitrogen, Phosphorus and Potassium. Each comparator has a removable film color chart and color coded top. Capsules needed for each test are also color coded.
Soil test kit includes:
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4 color coded comparators
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40 test capsules, 10 each for pH, nitrogen, potassium, and phosphorus
• Water dropper for accurate filling of testers
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Complete instructions for adjusting soil pH
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Fertilization guidelines and pH preference list for over 450 plants.
How Does it Work?
All you have to do is take a sample of your soil, mix with water, transfer some of the solution to the color comparator, add powder from the appropriate capsule, shake and watch for the color to develop. Note your test results and compare to the handy charts to adjust your soil for optimum growth.
For lawns, annuals or house plants. Take a soil sample from 2-3 inches below the surface. For perennials, sample should be from 4 inches deep.
Complete step-by-step instructions and charts guide you through the testing process and recommendations for adjusting the ph level of your soil.
Instructions for Rapitest Soil Test Kit - Printable PDF file.
| About N-P-K and pH |
| N – Nitrogen |
Nitrogen is responsible for producing leaf growth and green leaves. Too little and leaves turn yellow and the plant's growth is stunted. Too much and you'll have lots of foliage but delayed flowering and poor quality fruit. |
| P – Phosphorus |
Phosphorus is a major player in plant genetics and seed development. It also aids in plant maturity and disease resistance while increasing fruit development and seed yield. |
| K – Potassium |
Potassium (Potash) strengthens the plant as it aids in early growth, stem strength and improves the color and flavor of fruit. Not enough potassium will result in plants that are stunted and have poorly developed root systems. |
| pH |
This is a balance of acidity and alkalinity in the soil that affects how well your plants absorb the available nutrients. All plants have a preference for a certain pH level. Knowing what the pH level is for your soil can make it easier to determine what plants will thrive. It will also provide a guideline for adjusting the pH level to accommodate specific plants. |
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Why should I test my soil?
Nitrogen, Phosphorus and Potassium (N, P & K) are the essential nutritional building blocks for all plants. In order to optimize your plants health there needs to be a balance of these minerals in your soil.
When should I test?
While periodic testing throughout the growing season is recommended, it is crucial to test your soil before planting in Spring and when preparing beds in Fall.
I have my test results. What should I add to my soil?
See our recommended natural products chart to adjust your soil. Click the Instructions Tab above.
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