I'm guessing you spend extraodinarily amounts of time fuckin with yer grow/focusing on weed from the amount of time you spend here. (that's a lotta posts) That's cool....but I'm outta that mode after all those years of making bank/being tied to a grow. Too much "life" going on/other shit going on here to play follow the leader with all of the "experts" that are out there these days.
I get that 'living soil' s the trendy new bro thing right now...and that's muy cool if that is the way you wanna grow. FWIW...I don't do "cover crops" here on my outdoor grow. Just not how I play. I'm not tending small pots in tents in a super controlled environment. I'd be out there all day in this <15% humidity trying to keep the top inch wet so the shit didn't croak. It's a brutal environment at times. It hasn't rained here in almost a month now. I see no benefit in such a thing when there are a zillion sources of N out there that are easily acquired. I spend mucho time here trying to keep the forest from creeping in on me....weeds (cover crops) included. That's why the floor of my grow/garden is 20+ year weed paper....LOL. Fuck that shit.
No worries here about heavy metals. Organics have em as well. It's all about the levels present. The ferts I'm using have minimal amounts. Less than the city folks get just breathing the "air". (on a cellular level..they are SO fucked)
Even if I wanted to fuck with it/play that way....from what I've experienced running them extensively decades ago.....an RO machine simply couldn't keep up with the watering needs I have on the outdoor grow. 75 gallons per day go on these girls right now.....sometimes more if it's 90+F. Been there...done that.....and I'm not using a 'tap" for a water source so it would be muy hard to pull off via a sprinkler pump/hose and 75 psi. These grows are already a lot of daily work.....and there's no need to fuss and faunch over any of it. It's second nature here. I do what I always do to an extent.... tweeking shit here/there as needed/wanted.
The old "organics is best...." is an argument I've had for years cus it's the only way I've really ever played other than my hydro/RDWC/DWC/Undercurrent years. I've been a solid participant in the organic camp for decades....and after 30+ years at this shit...I fully understand the parameters/differences of each method. I just decided to change shit up across the board this year and dump the all organic approach and see where things would go. (the ferts I'm using have a kelp/humic base with added chem NPK)
FWIW....my gardens have never flourished like this. It's truly blowing me away. Never seen so many tomatoes on one plant....and there are 90 of em.
and those buds....oh my....gonna be a banner year here even if it all kills me when I eat it/smoke it