Steps to reuse the substrate in your next cannabis growing

Written by on 27 May, 2022

After the harvest is over you are probably wondering: What do I do with the soil? Well, the good news is that you can reuse it in your next planting.

Of course, to reuse the substrate you have to follow a few simple steps that we will mention here.

Keep in mind that it is generally not recommended to use a substrate if the plants that used it had fungus or pests, to avoid future contamination.

Also, keep in mind that after growing and especially after washing the roots, the nutrients in the substrate often disappear, so you will have to replenish the soil. Remember that if your soil does not have enough nutrients, your harvests could be affected.

How to reuse the substrate

1- To begin this process, one of the first steps is to break up the compacted soil or substrate blocks; you can use a rake to do this.

Then proceed to sanitize the soil, removing dead roots and organic matter such as pieces of stems or leaf debris. To make sure that the soil is in good condition, we must let it breathe for about 10 days.

2- Then to reuse the substrate you must recover the life that was in it. You can use worm humus, which favors the assimilation of nutrients and their transport. In addition to beneficial bacteria, such as trichoderma and mycorrhiza.

3- Also, add some new substrate to your soil, because it is normal that there are decreases in the total amount of soil that you have at your disposal.

4- Finally, some growers add a little perlite to get a spongier substrate. Add about 5-10% of perlite of the total amount of soil used.

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