Hi Eyes - I'm doing a really dinky grow; only 4 plants at a time cuz' growing only 4 plants for "recreational use" will FINALLY be legal in my state starting in July!!! It ain't much, but it's legal! Woo Hoo! Besides, I don't really have room for any more than that. I'm still pondering varieties, but I'll probably stick to plants that stay well under 3 feet and I'm leaning towards 2 ft, so I figure 3 gallon pots should do the trick. I'll be making 3 gallon smart pots for the ladies unless you think I should go larger. So 12 gallons of soil is really all I'll probably need to start off. It'll be an inside grow and I'll be using 300 watt CFLS (both veggie and bloom) because that's what I have. I've got a few 26 watt/100 watt equivalents too and I'll probably use the little ones to mix the light spectrum up a bit.
My main concern is that I plant the girls in soil that isn't too rich for them, since I've learned that autos are quite sensitive to nute levels. I figure I can always add an organic liquid fert if I need to.
I just need to know if I should plant in 1 part new soil mix to 1 part "other" (used soil or a half and half peat and perlite mix) or should I go 1 part new soil mix to 2 parts other?
And I have another question. When I made this soil, I was following the advice on another organic forum, where they suggested letting the soil cook for 1 month, but that was for photos not autos. Are you saying to let it cook for 2 months because the autos are really that sensitive to organic nutes? I think the neem meal and the alfalfa would probably be the only organic nutes in my mix that would actually cook, and I was told they would cool off within a month or so.