dutch nute burn

So went to the hydro store n buddy made me feel dumb for not giving plant food..was already 4 weeks flowering with no dying leaves or paleness on the lower branches
He sold me a two part A & B blooming formula dutch nutrients
The past 3 times I've given it to my baby and its made lower leaves pale abit and burnt tips
I'm in soiless bx pro mix
I fed then noticed nute burn so layed off and got better
Could it be underfeeding ?
Also read after that its for hydro grow but can still be used
He said 2ml for every liter
I've been giving it .625 ml and still havin a problem

Do you mean dutch master nutrients, in a gold one liter bottle?

http://www.dutchmaster.com.au/

2ml for every liter is alot. I currently am running my DM nutes at 20ml/5gal with 10ml/5g add.27 in flower to end up with around an ec of 1.75. (plant needs vary based on strain and environment)

IMO, the DM nute calculator says to dose them higher than what my plants need and if I dosed them at the rec level they would fry.

Are you ph'ing your nute water to 5.8?

Are you watering till you get some runoff from your pot?

couldnt seem to find a link for these - part A n-p-k is 3-0-3 - part B n-p-k is 1-0.5-3
definitely watering a healthy amount- lots of run off
ive read that you need more P for flowering - which is partly why im confused as this is a flowering blooming plant food with virtually no P
i ph water to 6.4 - 6.5 ish as im in a soiless mix (bx pro mix)
dont really know the symptoms of under feeding so could that be it ?

http://www.dutchnutrientformula.com/nutrient feed schedule.pdf
This is the feeding chart for the dutch nutrients.