thanks for the reply my apologies for committing the volume.
I am working in the metric system so 1ml booster per litre of water equates to the lower EC reading
I was advised by one of the ladies in the office to add more food to lift the EC reading my concern is that the amount of food will well exceed the recommended does on the feeding and watering chart.
I would appreciate if you concur with adding more than 2ml to attain an EC reading of 1.2.
My grow in in soil and perlite ration 30% soil and 70% perlite
Yes I had read both those articles you posted before I made this post.
also i have checked my EC meter against another fertiliser mix and the EC reading is correct with the manufactures recommended EC for the advised dosage
i do not under stand why the booster does not relate at all to the feeding chart provided the EC is way to low
If you are targeting an exact EC of 1.2, then you add concentrate until you get to 1.2; Regardless of what is on the bottle.
You really are not doing a soil grow with 70% perlite. You are going to have to monitor how fast your medium dries up. It will be a shorter period of time between feedings.