Reusing soils - What if it had on nutrients to begin with?

[TheFertilizer]

I have read a little on the subject and people suggest all the nutrients would be used up but I am using a soil that was 0-0-0 from the start. I didn't have any issues with pests or disease so I am not worried about that, but there are probably a lot of salts left in from the last grow.

Long story short, either I reuse or I wait another month before I can start again...

 

[Ganja God 420]

If you are worried about leftover salts and nutrients in the soil, I would recommend placing the soil in a smart pot or other fabric and flush it out with clean, ph'd water.

 

[AKgramma]

I agree with Ganga God. Flush the soil really well before you replant. You'll never get it back to 0-0-0, as the soil is now changed, but you will save the microbes, and they will help your seedlings in your next grow.

Many growers who reuse their soil add about 1/3 new soil/sand/vermiculite or perlite to replenish it. This lightens the used soil so oxygen can get to the roots.