It seems you are trying to run a no-till system in too small of pots, with no cover crop or mulching. Your soil has likely been sapped of all its nutrients and is not in a position to provide more. If you are talking about calmag and using living soil you have your head in two different places. Spend some more time reading up on No-Till/Living Soil/KNF methodology. In order to keep plants healthy throughout their life cycle and maintain future generations you really have to focus on soil health. No soil can stay well and alive in a small pot full of root-mass. I have never seen anyone have long-term success with no-till using anything less than 10-gallon pots. The large volumes are needed to provide space for the entire ecosystem you are aiming to build, not just the plant's roots. Living soil planters usually include things like worms, soil mites, cover crops, fungi, mulch, and more. All contribute to a cycle of breaking down matter (mulch) and turning it all into available nutrition.
Or drop the idea of using living soil and go coco so you can use smaller pots and feed them nutrients via liquid fertilizers. You don't want to be mixing these vastly different methods up. Besides using microbes... Always use microbes
