Originally Posted by plantingplants
You put the tree pot inside another pot right? The humid air coaxes the roots out. Not to say you don't have great root development.
Anyway, in what form do you add metals to your soil and how do you determine how much to add?
correct...The tree pots sit very tightly inside another cavity (in my case a tray the pots I use fit inside, I have also used other pots as well, lots of trial and error to find best) which creates almost an aeroponic effect for the roots (it's not aeroponics at all, the roots just look this way but it's a very humid cavity / area that creates fine root hairs extremely well with proper soil)...
as for soil.. I have a number of large beds here I've been building for years and I take some from that (my micros), use some Pro-Mix (just regular old clean pro-mix bales from AG suppliers, not the BS hydro stores try and sell all juiced up and overpriced). I amend to this, I have posted base ratios I target as well as one of many soil recipes I use somewhere in this thread before, the base ratios at least a couple of times.
I have tested my soils here locally (via Cornell, not sure who they use or if in house) enough times I don't that often anymore as I know fairly well what I'm working with, sorry if that makes others cringe.
I fully agree with most needing more Ca, P, B, Mn, Cu, Zn & Si and less Fe, Mg and especially K - when I add K during grow it's almost always or only Potassium Silicate fwiw. I use a lot of Baicor products, sometimes Amazon carries what I need and they mess up pricing, have gotten a few Gallons of Chelates there recently for under $30 delivered, their selection is limited though.
I foliar feed until I can't anymore and by then I hope I've built the soil enough to get me through till end, if not I use liquid fertilizer and drench, I also use a lot of Ca heavy slurries whether it be Gypsum based or Cal Carb etc
for those on the East Coast, this place is great and they don't FK you on shipping, pretty much charge you exactly what it costs. I have no affiliation but they carry a lot of what any organic farmers use and send out fast and fair pricing.