Thanks for your advice. I noticed ohso made the recommendation of halving the strength of the nutes for hydro earlier in the thread. I just felt that 30 gallons times half strength is still a LOT of nutes, they may not burn but it increases cost. My logic: since the nutes are recirculating in my r-dwc, and because IMO hydro provides much better access to nutes I may actually go 1/4 strength to start and work up off of a baseline ppm reading
Think there will be some trial and error here since BMO is not as widely used as other nutes, gotta start somewhere!
That's the thing with some hydro systems, they may require a large amount of water as opposed to soil, so you need that much more nutes too. But in all fairness, it's just a fraction of a tablespoon per gallon, that's really not much.
I believe I've heard some say that you can grow at half strength (probably an indoor efficient compact grow), but I would imagine they use "special plant tonic" which claims that the roots get so efficient that you can cut the fertilizer amount in half!
Maybe you can include SPT for a while to reduce percentages, and also lower them because your using hydro.
You might want to start out using 1/4 strength, then work your way up to 1/2 strength as they mature.
do a case study
Suggest separating half the plants to half strength rate which is adjusted for hydro. Then put the other plants on say 30% less nutes & supplements to see which rate works better. That should be the only change in the grow, and the change should be consistent throughout the observation period, like from start till bud, and from bud till harvest. May the better rate win!
Anyone know how early/young one can start using Super Plant Tonic? And what is the amount suggested? I'll be searching for answers too. thnx
