Indoor reuse soil help

[hello]

I saved my soil from past year. it was 5gal breathable cocoloco kindsoil mix.
I had a plant produce seeds.
I chose to fill up the 5gal. breathable with the used soil I saved and plant the seed I have.
is there a product I could add to soil to make it work? maybe mix something in water when I water?

 

[thomas m]

You prob need to amend the soil. I would run some run off tests. And then rebuild the soil. If you are going to do that, then I'd just recook. Especially if the soil dried out completely. Cooking takes from min 14 days, usually it's too hot and you need it to go 30 atleast.

 

[bartlancertp]

something like General Nutrition's Florakleen would help to rinse out old salts. Best to at least mix 50/50 with new soil.