Here's the base mix I suggest to all humans in dry US gallons..
3 to 4 gallons regular peat moss with no additives...no need for fancy packages...(if the topsoil,compost,EWC in the recipe look like they might be muddy...use 4 gallons,if not use 3...or adjust accordingly)
1 gallon HIGH quality earthworm castings
1 gallon local HIGH quality topsoil screened for this potting mix
2 or more gallons small and/or medium sized pumice,perlite,or lava rock...consistencies vary,adjust accordingly.
1 gallon vermiculite
2 gallons coco husk..rinsed well and fully hydrated
1 gallon leaf litter or forest duff..screened for this potting mix
1 gallon HIGH quality compost
1/2 gallon screened clay or bentonite
1/2 cup this 3 part lime mix based off Steve Soloman's 3 -way lime mix..adjusted by Coot a few years ago.....for the peat moss..and a continued supply of mag,cal,and sulfur as you recycle.
Since the start of this thread we have since determined that dolomite is not necessary,but this lime mix still works for the peat moss ph regardless.
1 part powdered dolomite lime
1 part agricultural gypsum
2 parts powdered oyster shell
These dried commercially available amendments...
2 cups crab shell meal
4 cups acadian kelp meal
4 cups fish meal OR N. bat guano
4 cups fish bone meal
1 cup sul-po-mag...aka langbeinite
2 cups neem seed meal..or karanja seed meal
1 cup alfalfa
Mix all ingredients together WELL....then fill your pots with the dry and mixed base mix.
Now make enough Aerated Compost Tea following Microbe Man's instructions to saturate the mix in each pot until it is thoroughly moist.
Let this sit undisturbed for at least 3 to 4 weeks before planting.
..considering the type of cannabis grown,this will be fine as a water only,no ph'ing,no flush beginning organic soil mix INTENDED for recycling....there may be a need to topdress or supply another ACT in mid-flower..type of cannabis depending.
Some types of cannabis have larger root networks and can utilize more from the soil,some types are more sensitive to certain un-composted amendments like alfalfa and fish meal...but 3 or more weeks allowing this mix to 'cook' which actually means composting or breaking down of organic materials. This should be fine for almost anything considering you have assembled the components according to the variables of your material.
If you feel that 3 weeks may be pushing it before transplanting fresh cuts into....ease your mind and let it sit for 4 or more weeks..just make sure it remains moist. Moisture is critical for the microbial processing of organic matter.
If you lack one or more of the ingredients,look for suitable replacements...most replacements are fine.
I will talk more about re-amending as the thread progresses.