how can i get my old soil that iv already grown in, back to a useable state?

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http://www.rollitup.org/grow-room-de...k-grow-mh.html

ud need to add a bunch of addatives to it that would give u more trouble then just getting new soil, Ive heard that u can use this stuff advance nutrients has in there line, some sort of enzyme juice that can restore your soil to a state that nature would do itself

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I grow only tomatoes and for my personal use. Any inference otherwise from my posts is completely false.
CFL Stealth Closet Grow--Bagseed

Hi --

Also, there are likely fungi and bacteria and possibly insect eggs and larva and concentrations of fertilizer in the old soil that you wouldn't want migrating to your new crop. Use the old soil in a compost bin and make/buy new potting soil with each new crop.

Bob

this

i compost my old stuff with my old plants, i chop everything up and make layers. soil greens soil greens soil. i also add worms i find in garden to my compost. hey even dig it into the flowerbeds or sprinkle over the lawn