How often to water vs. feed nutrients m

How often depends on certain variables... how concentrated are you mixing it? How much is your soil still contributing? It's something that'll shift over time in soil. You'll have to supplement more as amendments are exhausted. Whether you give some light concentration each time or a higher concentration ever 3rd irrigation is up to you. over time, it'll average out to something similar. 1) fully saturate - whether just irrigation or fertilizing. In soilles, get 10% runoff, too. 2) wait for appropriate dryback and repeat. Don't over-complicate irrigating. it does not have to be bone dry (should not get bone dry), but there should be some minimum dryback between irrigations. As far as volume, if oyu are whimsically choosing it, this is wrong. You give as much as it takes to accomplish #1. If you wait for consistent amount of dryback or loss of weight from pot, it'll require a similar volume of water each time. Usually 'they' say let 1" deep dry in a soil.. but even this too depends on how much perlite or similr is in it. Certainly don't let the plants wilt. in soil, if the amendments provide too fast of a rate of nutes, there's no underwatering that will fix that, in fact you'd want some runoff to help mitigate it, but really the next time you just need a soil with a lighter charge or a more delayed release. If you are adding too much via fertilizer, you can reduce how much you add. Buildup isn't some magical thing that just happens. it's a result of our choices. If a soil isn't constituted right, there's not much you can do midstream... just change how it's made next cycle based on what you learned. incomplete watering (not following step #1) will train roots to grow superficially and possibly cause zones of buildup where that water ebbs and flow -- each time it dries it deposits whatever was in solution, and if that repeats over time you'll potentially cause a hot spot to form (buildup). Partial watering is bad... don't do it.