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    Ventilation issues

    Not long ago I remember where it was surveyed amongst cannabis cultivators as to what was their #1 grow issue. Overwhelmingly, the answer to their question was - ventilation. Keeping things in context, I have a Bloom Box that is equipped to grow nine plants. Let me mention that growing nine Indica’s, (forget LST methods) in a box was nerve wracking. With those grows I soon realized that ventilation was truly the main issue. From a logistic POV I was not able to attend to the backside of the plants on the back row. The results were disappointing as harvest day did not meet my expectations as 1/3 of those bushy little girls went to the dumpster because of wet-leave and total destruction by mold.

    I now only grow 5 girls, spread them out, and use LST fully. The environment seems to be more friendly to the arrangement, and it makes progress monitoring much easier. But by week 5, it has appeared that like everything else on the plant vying for nutrients, fan leaves go crazy. And unfortunately that means leaves laying on each other, huge leaves moving inward to the shaft, and finally covering the girls that need everything to develop. So, gingerly, I used the “if it touches or hides remove it” defoliation methods. That is working out nicely. However, I do see that the leaves that the fan leaves were interfering with are curled downward and quite lackluster. Now, I do have a fan in the box, blowing over the plants. I run LED’s, T5’s, and CO2 (12 on 12 off). Ironically, the girls look great (week 5), and the roots are massive. PH is set within the DWC guidelines, water is clean, air stones running good.

    I do have two questions:

    1. How is it that when I look at large growing areas, i.e. commercial warehouses, 300-400 plants growing (tightly) together. I wonder “WTF” how is he keeping a great per cent ages of product/girls from 300-400 plants and I am still trying to keep a full 100% of my crop?”.

    2. What strategies/suggestions can you give to avoid continued lack-luster - semi-moist leaves.

    3. Should I direct the fan differently. Thanks for the work you do -

    Vortex,
    Proud Patreon Team Member

    #2
    remember that fans only circulate the air. High humidity and heat coupled with potential overwatering is likely your main issue in such a confined space. You didn't mention the box temps or humidity levels and I suspect they are too high for the strain. Droopy or tired looking leaves generally mean either heat or water/humidity issues, especially when mold starts to form.
    I hope there is an afterlife...there are a lot of friends and family I'd like to see again, one day.

    Comment


    • 9fingerleafs
      9fingerleafs commented
      Editing a comment
      Yep. Need dryer air. I grow a small patch of around 30 flowering plants outdoors. In 7 gal pots. They get fairly big. They touch neighbor plants. They get rain and very high humidity all year long (live a few miles from the beach) and the answer is there is always mold. ALWAYS no matter what I do. Some tiny bit always get boytritis. I’ve just learned to factor it in. Gotta be less than 5% cause I check plants everyday so I remove anything rotting right away before it spreads to other branches or plants. You seem like a savvy intelligent person so im sure you can look into trichoderma harzianum. Its a fungi and It’s my best friend. I do drenches to prevent bud rot. Behaves like mykos. You can foliar spray in veg to prevent rot in branches and leaves

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