They are not all 0-50-30 either.
Shooting powder(My personal favorite) is 0-35-28 and is 2.5 grams per gallon the 6th week and double that in the 7th.
No, they arnt all exactly 0-50-30. i generalized to show cost, which apparently isnt good enough for you, so lets look at it closer:
First,
shooting powder is 0-9-20 not 0-35-28. Second, the H&G feeding schedule uses
shooting powder far too late for most early flowering plants. Please stop providing incorect/false information and urging other growers to use it.
I am also not sure if the NPK value has anything to do with concentration of powder in relation to ppms per gallon. How do these boosters differ in ppm per gallon when diluted?.........
And being unsure of basic nutrient analysis makes you feel like your in a position to advise other growers on nutrient use?
I addressed all of your questions here:
The thread covers N-P-K, guaranteed total analysis, actual available ppm analysis and the nutrient profiles of most of the boosters in question.
BTW..... 145 posts in a few weeks? I think your "wherehouse" may need more attention. :evilgrin0040:
Two of my many rooms are seen here:
What kind of attention do they seem to lack? As head of plant nutrition for several laboratory/medical grade facilities i work 16 hours a day 7 days a week. I post on my breaks because i cant get enough plant nutrition.