It seems that there is a large upswing in grow journals using organic commercial supersoils that are showing major potassium and/or magnesium deficiencies. This is my commercial blend and I reammend with the same ingredients. I use 10gal cloth pots so my soil can be slightly milder than The Rev's which makes myco a lot happier.
I spent 4 years playing with soil recipes and at the end of the day,(1440 days actually
) I can't really make it better or cheaper than this commercial blend reasonably. I can, but the savings are minimal, and the "better" is minimal. All these ingredients should be in your global mix for a chance at a successful "Water Only" grow. Throw in 2 of the Rev's flower spikes and 1 of his veg spikes and you will have a perfect maintenance free grow only requiring microbe teas ( I use 1 in veg and 1 in flower) and a steady supply of fish ferts to feed the fungus. This grows healthy enough plants that in 6 years I have had zero pest outbreaks.
Here is a breakdown of whats really in it:
Coco Coir - Phosphorous Potassium (trace amounts of boron, calcium, chlorine, copper, iron, magnesium, manganese, molybdenum, nitrogen and zinc.)
Calcite - CaCO3
Limestone - Calcite, Dolomite
Dolomite - Calcium carbonate Magnesium carbonate, and lesser amounts of chlorine, phosphorus, and potassium, in addition to more than 20 other trace elements.
Feather Meal - Slow release nitrogen
Fish bone meal - Calcium, Phosphorous, many many trace elements
Guanos - Nitrogen, Phosphorous. Trace elements are sulfur, potassium, calcium, magnesium, chloride, boron, molybdenum iron, manganese, zinc and copper.
Gypsum - Calcium, Sulphur
Greensand - 10% total potash (0.2% soluble), along with iron, magnesium, silica and as many as 60 other slow-release trace minerals.
Kelp Meal - N,P,K and 60 minerals and elements including iodine, 21 amino acids, and 12 vitamins (including A, C, B12, thiamin, and vitamin E or tocopherol).
Non - GMO Alfalfa meal - nitrogen, phosphorus, and potassium
Non - Gmo Soy Bean Meal - Nitrogen, Potassium, Calcium, Magnesium, Iron, and many trace elements
Rock Dust - too many micros to list
Rock Phosphate - Phosphorous, Calcium.
Its made by Bluesky Organics and if your a new grower and want a successful place to start use this... It works...period. Add extra myco at uppotting and rely on hydrolysed fish ferts low dose 1.5ml/l of water once a week from sprout til 14 days before harvest for the myco, and you will impress the crowd, not to mention be smoking the best weed you ever have...well for now... it will get even better as you learn.
I'm not advocating for Blue Sky, simply saying that if your organic blend doesn't have this you WILL be tail-chasing unless you have mastered some work-arounds for a lesser system. If you buy commercial soil please read the ingredients. Its vital that all these ingredients are in the global mix. Myco is smarter than us so stay out of its way.