Help with switching to Jacks fertilizer

[Dirt_Wizard]

I think @LD50 might have your answer here:

Fertilizer Comparisons, Retail Mixes and Program Insights

Sure! Let’s first define what a veg ratio is. Within the context of salt-based ferts I think Jacks 321 is a good “gold standard” veg formula for inert mediums. I plan everything I do around the N number. Jack’s suggests that 150N is appropriate through veg. The lowest I go is 120N which is actually, simply, Jacks 321 at literal 3g Hydro, 2g CalNit, 1g Epsom. This is an 80% strength (120N) blend that I personally use in veg to grow out smaller plants. The 100% strength (150N) formula for 3…