Our retention pond in our neighborhood has a lot of algae and problematic plant growth due to the surrounding farms and lawn runoff, so we’re experimenting with a floating island to pull nutrients out before they can cause problems. This will also provide some interesting flowering plants, and more fish habitats.

Will be an interesting experiment to see what survives and what does poorly.

Zinnias, sunflowers, marigolds, and a few others are in net pots, inserted into cutouts in EVA foam mats.

Design is from:
http://www.beemats.com/

More reading:
https://arstechnica.com/science/2024/02/flowers-grown-floating-on-polluted-waterways-can-help-clean-up-nutrient-runoff/

https://www.sciencedirect.com/science/article/pii/S2666765723000637?via%3Dihub

  • rdyoung@lemmy.worldEnglish
    5·
    6 months ago

    Yep, hemp has been long known to rejuvenate soil. It’s been used for decades (or more) as a rotation crop to restore soil after something like corn or wheat sucks up all of the nutrients.

        • mipadaitu@lemmy.worldOPEnglish
          42·
          6 months ago

          Ok, great. Show me a paper that explains what you are talking about and I’ll read it.

          I’m following peer reviewed papers on how to remediate ponds, and you’re telling me that they are incorrect or insufficient.

          • Username@feddit.deEnglish
            41·
            6 months ago

            I’ll add another condescending advice for you: Don’t feed the troll.

            No seriously, those two other commenters are either insane or trolling. They are completely ignoring your objective and just going on about “rejuvenation”.

            Please stay as you are and stand your well informed ground!

            • mipadaitu@lemmy.worldOPEnglish
              21·
              6 months ago

              Yeah, I originally thought they were commenting in good faith, shoulda stopped two comments sooner.

              Don’t understand what the issue is, I just want sources for recommendations, the only source either of them shared was for a topic that was irrelevant to the discussion.

    • SchmidtGenetics@lemmy.worldEnglish
      42·
      6 months ago

      For soil rejuvenation you mulch it back into the soil for compost I thought, you can’t do that if you’re using it for remediation to pull stuff out of the soil as you would be just be putting it right back in again.

      • rdyoung@lemmy.worldEnglish
        4·
        6 months ago

        You are correct but I think hemp is similar to clover in that there is some symbiotic relationship with other organisms that help rejuvenate the soil even if you don’t mulch it back it in. I could be wrong here but I know that plenty of farmers grow hemp between other crops and likely don’t “waste” it by mulching it back in.

        If you are looking to pull bad stuff out of water, I’d think that growing anything that would hold onto the bad stuff as it falls to the bottom of the river or lake and stores it there would be a solution as well as harvesting and transporting it elsewhere.

        • mipadaitu@lemmy.worldOPEnglish
          52·
          6 months ago

          There would be some benefits to growing hemp, but in our situation, it wouldn’t apply. We aren’t looking to add nutrients to the water, we’re looking to remove it.

          We aren’t concerned about other toxins that the hemp would absorb, so while it might be useful in some areas with more industrial pollution, it doesn’t apply to this project.

          • SchmidtGenetics@lemmy.worldEnglish
            27·
            6 months ago

            Cannabis can be used for rejuvenation and remediation, it pulls out toxins and nutrients, but can also add nutrients. It can do anything, it’s just how it’s used, so yes it could maybe apply to your project.

      • rdyoung@lemmy.worldEnglish
        17·
        6 months ago

        Did this get downvoted for the bondage bit? Bunch of vanilla fuddy duddies round these parts it seems.