Dirt after the harvest

[LuciferN]

you can use enzyme's that will eat the old dead roots so to speak.

This look like a nice solution for my problem. Now do you know what kind of enzyme I need or where I can find those ?

Is getting some worm in my soil is a good idea ?

[stinkyattic]

There's one called 'cannazyme' that is nice. But you still need to remove the excess salts somehow, and re-using soil poses potential pest and disease problems as well.
If you have no good way of disposing of old media, switch to DWC or a hydroton-based system where the medium is either re-usable and sterilizable, or entirely absent.

[LuciferN]

I'm using organic fertilizer so I think I don't have to worry about salt. Can you please confirm this ?

[Greenthing]

I'm using organic fertilizer so I think I don't have to worry about salt. Can you please confirm this ?

I would say you dont have to worry, dont take my word for it double check.

[stinkyattic]

There are so many reasons to start with fresh soil that the levels of salt in used soil from organic grow are pretty mcuh moot. Yes, you do get fert buildup and interactions. The term 'salt', applied in its chemistry sense, does not refer exclusively to Sodium chloride.

[rudolfskis]

Ive heard of big grow companys reusing soil.....Thinking of trying it itll save me approx 30 bucks a grow,More money to use for fertlizer i figure.....Course i know i have to flush the old dirt and thinking ill somehow try to kill any lil pests that may be in from previous grow.Like above somehow putting in sun for several days let it totally dry out and bake in the sun to kill anything in it?
Figure ya itd be better to buy new BUT hate to keep wasting being the stuff i use isnt really dirt but just a grow medium for roots.
Jus Sayn

[Shovelhandle]

Easy to reuse indoor medium that has organic nutrients. Just add some quality amendments.

Otherwise you could flush it out good and compost it for a while before reusing it.