I have seen salt build up on leaves using even low end ppms, plain water seems to keep this down for me. The molasses is giving a boost to the microbes in the soil. Which frees up whatever weak nutes that may be left in the soil w/o actually adding neuts.
I see.....I never, ever had ANY build up problems in decades of growing - when using the nutrient
properly!
Yes, the molasses will do that - for healthy living bio herds in soil. Thing is, if you use synthetic nutrition, the bio herd is not really healthy enough to use the carbs
very well.....It
does help a bit, so not a "bad" idea......You can start trying AACT bio teas on a weekly basis....thing is that synthetics are all plant ready, right? The use of that method will MAKE you
decrease nutrient use by
50% to start with, or you'll cook your plants so fast it'll make your head spin!
So, your guess at residual nutrients "left" in the soil is close! I suspect that such an active bio herd in the synthetic rich soil - make the nutrients MORE available and increase uptake to insane levels!
This was the last line of experimenting I did before going back to 100% organic soils. I had that shit down to 1/3 "normal" nutrient use (and for me that was a daily thing) and I had to do my feeding on the every other watering basis! This made for some massive plants with crushing yields at only 1/6th the amount of nutrient normally used (this also involved a supplement known as SEA GREEN)! Now THAT's saving money on nutrient !
I must say here that unless you know what your looking at for problems and you can dial in nutrients to strains quickly.....this experiment will be a long and frustrating process for you! It changes ratios considerably and adjusting balance of NPK is the key and rest is the "lock" the key fits in.....If you understand that and have space to do it alongside your regular runs - give it a try and amaze yourself! Increase the use of the AACT a bit too.....that has a big impact!
Another member here started to experiment with that....Asked if there was anyone else who's tried that.....We had a long chat and as far as I know. He's still doing it with better smoother results.......For the life of me i can't think of his name......Don't get old! first thing that goes is remembering names....He liked AN and ran a grow store...he took lots a crap for liking AN but, hey, it worked for him...right?