Still micro green troubles

mtgs(6)October 11, 2012

I am still having trouble with damping off of my bulls blood beets, carrots and cilantro microgreens. Not sure what I'm doing wrong. I am growing them inside my home under lights. I am using a sterile potting mix, and growing them in the styrofoam containers I get my strawberries and mushrooms from. I water from the bottom , and use a heating pad to aid in germination. I have used the typical 6 pack black containers, but still have this problem.Is there anyone who might know what I' m doing wrong?or could share with me the way they grow micro greens in a soil mix. Thank you.

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little_minnie(zone 4a)

You use carrot tops in micro greens? I have never tried that.

    Bookmark   October 11, 2012 at 10:06AM
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myfamilysfarm

too much moisture???

    Bookmark   October 11, 2012 at 10:52AM
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cole_robbie(6)

Damping off is pythium, which grows when roots are too hot. Is the heating pad on all the time? You only need the heat for a short time until the seeds sprout. After that point it will encourage pythium, which is basically root rot.

If you get the soil temps down, you're not overwatering, and you still get pythium (I hope you sterilize those cups before re-using), then you might try experimenting with beneficial bacteria.

    Bookmark   October 11, 2012 at 2:03PM
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mtgs(6)

When I was talking about carrot tops I meant when starting for outside planting. Sorry.

    Bookmark   October 11, 2012 at 4:22PM
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stevegr

Damping off is always because of lack of air circulation and often too much moisture. Do watering at the beginning of the day and only as much as necessary and provide air circulation however possible. Damping off can occur in even so called "sterile" potting mixes. Steve Gruenke

    Bookmark   October 28, 2012 at 10:04PM
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curt_grow

OK Here is what I do. I grow greens all winter(four years no damp off yet) Micro and up. I start with a potting mix. Use standard ball test for moisture. make a dibbled hole in the center of cell and add vermiculite Depth of hole depends on seed size. With micro greens I spread a layer of vermiculite over the whole surface. Now I plant the seeds and spray with my hand spritzer. cover with clear plastic and put under lights.I do leave the plastic on a lot longer after germanation than recommended, but I have a very dry house due to my heating system. I do not use a heat pad as the lights keep the soil over 70 F. The grow area is at 82 F. while the lights are on and drops back into the 70 F. range when off. Humidity is around 50% One thing I do not water very often when the plants are young, and like you water from the bottom. You can see the moisture on the plastic so no need to worry. So I would ask you what are your soil temps. Beets and carrots like it cool so do most greens. If you are running in the 80F. range germination might suffer. Hope this helps I have had damp off when I first started planting seeds indoors - frustrating. Keep working at it you will fix it

Curt

    Bookmark   November 4, 2012 at 12:27AM
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amanodigma

what about moisture..?

    Bookmark   December 14, 2012 at 2:02AM
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