First the JRP Lab checks out the alkalinity. The higher the alkalinity, the more acid it will take to bring your water into working range for your crops. The smaller your container size, the more problematic the high alkalinity is.
When we see high alkalinity water it may cause a gradual increase in the growing media pH. Often times it may be necessary to inject mineral acid (sulfuric or phosphoric) into the water or to use acidic media amendments, such as sulfur, or “acid-forming” fertilizers.
** Helpful hint: Do not use water that has been water softened. Water softeners add harmful sodium while removing desirable calcium and magnesium. Water softeners do not reduce water alkalinity.
On the other hand, low alkalinity water usually lacks the components that neutralize acid. As a result, the continued use of potentially acidic fertilizers may result in pH crash in the medium. In addition, these waters are often deficient in calcium, magnesium or sulfate and additional supplements may be needed.
Next up we check the nutrients that may cause a concern. Elements such as sodium and chloride can cause plant toxicity at high levels.
Finally, let’s find your perfect match! Call the Jack’s technical team for personalized recommendations based on your crop and water!
From more information take a look at these in-depth articles: KNOWLEDGE CENTER
If you haven’t yet sent us a water sample and want to learn how to take a water sample, check out our “how to” video: HOW TO TAKE A WATER/FERTILIZER SAMPLE
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