hahaha sorry dude i dont know what npk stands for im new haha its not that bad of a price i got 8 bottles of all the stuff i need for 160 thats from a shop on ebay even cheaper also could u tell me what is potash used for
Hahah well if you just follow the instrutions on those bottles and be sure not to burn the plants you should do just fine, they look like a good quality nutrient. The fact that they are an A+B is a good thing, it means they didnt compromise on the ingredients and try to mix them into one bottle.
which product were you using btw I may actually have been looking at a different formula, i just typed in dutch master in google and looked at the first link
Potash is the K, in NPK
You really should read up on NPK it's the most important aspect of plant nutrition.
Every nutrient bottle is required by law to display the percentage values for Nitrogen (N) Phosphorus(P) and Potash/Potassium(P)
During Veg you'll need lots of N and less P and K and during flower you will need more P and K and less N.
Your Grow formula should have a good Veg ratio of NPK and your Bloom should have a good NPK ratio for flowering.
The good thing is if at any point you feel like your vegging plant isnt getting enough PK or your blooming plant isnt getting enough N you can always mix the two together(after disolving in water of course) and achieve a wide variety of possible NPK ratios.
If you look at the bottles they will tell you the NPK values
If you tell me what the NPK values are I might be able to explain how you could use your nutrients at different ratios to make the most of your nutrients