Im confused when people mention nutrient "strength". What does this mean? In flowering should I use full strength of my main fertilizer and half strength for my bloom booster?
I always think of full strength as the recommended dosage per the packaging, with half strength being half the recommended amount, etc. As for question two... Not sure. Does your manufacturer offer a feeding schedule you can look at? I start with a smaller dose of bloom, then work up to full strength after about 2 weeks while also tapering back on the veg fert. I'll keep feeding veg fertz until about week 3-4 of flowering, then I let the bloom carry it on until flush / harvest.