Today we’re talking about three macro-nutrients: potassium, calcium, and magnesium. These are the three most commonly deficient nutrients for aquaponic systems.
Not only are all three of these deficient in systems, but they impact each other when they are in excess. This can be confusing, but if you’re having trouble controlling any one of these it might be that one of the others is impacting it. In this case, it might be worth it to have a university do a water test or tissue analysis for you.
If you want more in-depth information on nutrients/plant interactions, check out USU courses (online courses built help small farmers build their farms and/or businesses) at university.upstartfarmers.com.
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