I do not use VPD and my room uses roughly 1500 watts of LED. I am speaking strictly from a nutrient perspective. Also, I am not a fan of ratios, I just utilize experience via trial and error. Here is a pic of my bloom feed. My feed is on par with most/all other known recipes that growers have success with cept in my case, I individually targetted each element based on my experience with previous regimens. Also, research what happens to calcium in the presence of high P. If memory serves me well, I think 321's P is in the range of 45ppm.
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i like ur mix its v ery similar tot he one i run... one little exception i had to lower my P even more durring veg..
my hydro ssystem i run
veg - 120n 35p, 145k, 125 cal, 40 mag , 24 sul
flower 120n, 50p, 170k,
when had P levels in the veg mix that were the same as in the flower mix the circulating solution in the hydroponics was acculating too much P and over time going into the luxutry and toxicity levels....
im too lazy to be flushing or changin the water in my hydro system so the goal was to get the fertalizer correct... by veg mix i mean i give them that right up untill they stop stretching thens switch to flower... i maintain the P levels a little hgier in flower because there not going to get into the toxic range in 4 weeks but if i had them in the same solutuion for the whole10 weeks i needed to lower the P down to levels i posed in my veg mix.... shitty thing about this is the P levels are so low its really hard to maintain a proper PH.... i have to use nitric acid...
so my mix is technically a 60-35-145 ppm npk w 60ppm n in form of nitric acid