It's the recommended rate in the instructions that will give you the claimed percentages on the analysis. (provided it's a guaranteed analysis of course)abhikjha wrote: βMon Aug 09, 2021 3:56 am Hahaha, as long as my plants are not complaining, I am fine with these mathematical calculations
One last question - with my NPK sorted out, what will be your recommendation for the dosage? Is 1ml of each of three (ie 3 ml) in 3 litres of water sound right to you?
So if you tell show me the instructions on the pack, I can work out the ppm you would be giving the plants if you followed them. Then you can adjust up or down according to your wishes.
or you can work it out yourself....
Multiply the % of the nutrient (N) in the concentrate x 10 x the number of ml to be used per litre to obtain ppm of the N.
How much you use depends entirely on how often you use it. Every watering? every second watering, every 4th etc.
For every watering, 25 ppm N should be enough in a mix with soil etc. Every second, 50ppm etc.
It's all pretty flexible with cacti because they store everything.