Nice Post Sub! I hope you don't mind me chiming in, and please know that I am not a botanist or scientist but just a army veteran and father of three with a small farm and a love for soil and making it produce more yield in any crop I grow. I try to be open source and would love to help people grow better for less money. I started with subcool's recipe and spent a lot of time over the past few years learning from very knowledgeable people (ecompost, slownickel, Dr Cho) that know a lot about soil that goes beyond cannabis. I certainly respect you and Jill and I hope you understand that I'm not trying to do anything but give you a suggestion on making the recipe better. So here is my suggestion to you and anyone.
Peat- Carbon, high CEC, acidic. Canadian Sphagnum tastes like maple (I'm fucking with you, wear a mask or you'll be hacking shit like a coal miner).
Rice Hull- Silica aeration, Holds air for a grow or two.Top dresses nicely as well. Low dust, Can be grown on your farm. Non organic is cheap as shit.
Coco- Fast drying, aerating...neutral pH to counter the peat without much lime
Dolomite Lime- You need some for mag saturation increase the peats pH.
EWC-Store bought bags are almost guaranteed to have fungus gnat eggs but that's life I wouldn't grow without it.
(I have found a 5kg coco block mixed with 5 gal of each makes an incredible nice base.)
Gypsum- 20%-25% Fast acting Calcium and available 15-20% sulfur...which will release the Calcium and bind to ammonia and slow its volatilization. This needs to be in a decent mix for better uptake of other nutrients. If I could eat gypsum and rice hull I would(the rice hull gives me gas)....I love them both.
Bone Char- 19% available P.......screw guano's shipped from a foreign rock, Burned bones are the is the shit. Make it on your farm as well (800F and some roadkill needed).....I have nothing against bone meal/fish bone meal I guess depending on the source but why? when I can burn it and make it available?
Crab/lobsta Meal- increases Calcium saturation, Chitin (Increase bacteria and fungi). Known benefits in soil against pathogens. Too easy to make your own.
Soybean meal- (7-2-1) I have found that this is the perfect medium mixed food source for cannabis IMO. Most available is GMO as you may hear, but non gmo organic is readily available. seeds are also available to grow/make your own.
Diatomacious Earth- Food grade otherwise it will from one of the MANY mines that have diatoms and heavy metals. To add to this, the Diatoms are heated and turned into a crystalline form which is very dangerous for your lungs as opposed to the amorphous type which is unheated and in its natural state. There are only about 3 mines in the US that are deemed food grade. Fertrell brand is what most recommend for food grade.
Kelp Meal- Micronutrients without the mining. Fuck Azomite I hate that stuff. Aside from the heavy metals(which are a large concern in medicine in very small amounts ie CADMIUM). Why introduce more aluminum and sodium to your soil anyways (unless it is zeolites to increase nute hold in soil and CEC)? Traces can be found from Comfrey, yarrow, kelp..etc. Seriously if we are going to talk about investing for our children....How about we first make sure they don't have to wipe our asses because of heavy metals when we are later in life.
Epsom salt- slow/small/extended Foliar for better uptake. Need high Cal saturation to push it in flower
Humic/Fulvic- I will begin to make my own out of my compost someday but I use both every grow now (leonardite...not the greatest). Bio-ag once that runs dry. Humic helps under the roots, Fulvic as foliar.
People should be aware that they NEED to use non-chlorinated water because when mixed it creates a Carcinogenic THMs (Trihalomethane) and MX's (Unknown Mutagen). See Bioag's website for a better explanation.
Molasses- Love it, need it. Once a week at least to feed the microbe, never more than twice. Just a few teaspoons is enough. Maple dregs in my future.
Fish Hydrolysate or Fermented fish- Please stop using Fish Emulsion from home depot....That shit is Cl toxic from what I have read and the smell! Thrown up cat turd.
75-80% Cal sat 11-13 mag sat
Could this be improved? A little of course but that is what it is all about both in life. Personal and societal progression. Providing the cleanest medicine both environmentally and internally at the cheapest cost. Taunting your buddies to go cleaner instead of bigger on giant gaps (quit flailing son and float). I wish coco grew in Maine but yet to find an alternative. Trying straight shredded leaves now but that will take time to know for sure.
17 gallons Coco coir (1 5kg brick)
5 gallons Earth Worm Castings
5 gallons sphagnum peat moss
5 gallons rice hulls
3 cups gypsum
3 cups crab meal
1 ½ cups kelp meal
3 cups soybean meal
3 cups bone char
1 cup dolomitic lime ( a little more if no epsom foliar)
1 cup Diatomaceous Earth
a handful of native leaves wouldn't hurt.