Crop rotation and cannabis

Discussion in 'Organics' started by MedN00b, Jul 11, 2018.


    MedN00b New Member

    I was listening to a Jeff Lowenfels interview on KIS' podcast and it got me thinking about the issue of crop rotation and reusing soil. Both Jeff (author of teaming with microbes) and tad seem to be strong proponents of reusing the soil without break. As an organic market farmer this seems contrary to the principles of succession planting and crop rotations. How do you successfully grow in the same soil without issue of disease, pest incidences, nutrient depletion, etc. It's so contrary to everything I know and have practiced for years.

    Crop rotation is standard practice for organic farming which is why I don't understand how cannabis can continually be grown in the same spot without issue.

    This seems so foreign. Is there something that makes cannabis different from otherannual vegetable crops that allows this?

    Capn-Crunch Well-Known Member

    I'm going to reuse my soil for next spring, but not before I amend it and add organic matter

    Wetdog Well-Known Member

    You're conflating agriculture (growing in a field in actual soil), with horticulture (growing in containers with a 'soiless' mix that you've constructed).

    If you were growing canna in a field like your market garden veggies you would be absolutely correct about the crop rotation, but it just doesn't apply to a container mix that you can reamend as needed or, completely replace with entirely new mix.

    My soil based raised beds are treated very different than stuff in containers with a soiless mix and is close to what you are talking about with the rotation, pests and so on.

    Rasta Roy likes this.

    Miyagismokes Well-Known Member

    That's not precisely the difference between agriculture and horticulture, horticulture doesn't imply not in soil.
    Agriculture is applied horticulture.
    Yeah, it doesn't fruit, ideally. We've bred her for flower production, so food crops aren't precisely comparable.

    But as someone who reuses soil and grows organically, I amend each season. I use raised beds and fabric pots, though.
    If there's a way to never amend, I'm all ears
    Capn-Crunch likes this.

    LinguaPeel Active Member

    Irrigation canals full of fish at the bottom of some fertile mountains.

    Miyagismokes Well-Known Member

    Well, I am in a cozy mountain valley... Unfortunately, overuse of permethrin has kicked fish in the nuts in the area....
    I've thought about farming catfish, though...
    Rasta Roy

    Rasta Roy Well-Known Member

    Like Wet brought up, reusing potting soil isn't the same as using a growing a high intensity crop in a field.

    Although there a lot of cannabis growers that should be crop rotating and aren't. And given the inflated price of cannabis crops I wouldn't expect them to stop. You can do it! You just ruin the environment with all your phosphorus run off.

    OPfarmer Well-Known Member

    I farm about 4 acres of organic vegetables. Yep crop rotation. I hear you.

    Some crops actually do well growing on the rotting remains of the previous crop, as long as their was disease. I believe pot to be one of those crops, as wild hemp grows in dense stands year after year, slowly expanding the circle.

    So I suppose if one composts all of the remains and adds them back in to the soil that help with nutrient balance. Me I grow pot in pots of soiless mix that I do not reuse.
    Rasta Roy likes this.

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