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Author Topic: Can mycorrhiza cause watering problems ?  (Read 1101 times)
davestree
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« on: April 17, 2012, 03:57 PM »

I have a nice bunjin black pine that is fairly mature.  Last year I repotted as it was rootbound.  My mix is screened turface 50%, 25% pumice, 25% Akadama.  The tree is healthy, or appears to be.  I noticed today that it drained a little slowly when being watered.  Mycorrhiza is visible everywhere in the soil and from the drainage holes underneath as well.  Is it possible that it could colon ize that rapidly and clog up the pot ?  I aerated the soil a bit, do you think  I should pull it out of the pot and have a look ?  thanks much....
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Adair M
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« Reply #1 on: April 17, 2012, 05:46 PM »

Is it possible it grew so many roots over the last year that it is root mass clogging the drains?
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MatsuBonsai
John Callaway
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« Reply #2 on: April 17, 2012, 06:18 PM »

Yes.

Now, pictures would help to see if that's the case here.  Smiley
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J

davestree
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« Reply #3 on: April 17, 2012, 06:58 PM »

I think the roots did grow that well, from taking a close look this afternoon.  I am going to pull it out of the pot tomorrow and take some pics.
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MatsuBonsai
John Callaway
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« Reply #4 on: April 18, 2012, 09:39 AM »

Did you do fall cleanup?  How do you fertilize?
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J

davestree
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« Reply #5 on: April 20, 2012, 09:40 AM »

By fall clean up do you mean removing old needles ?  Yes.  Or cleaning up the soil surface ?  Also yes.  Fertilize with organic fertilizer continuously spring through fall, chemical fert twice a month.  I have been really busy with work, and will pull the tree out of the pot and take pics soon.
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MatsuBonsai
John Callaway
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« Reply #6 on: April 20, 2012, 10:04 AM »

I do t typically pull a tree out of its pot unless I plan on repotting. Tie wires, tec.
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J

davestree
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« Reply #7 on: April 20, 2012, 10:34 AM »

I don't either.  What would you do ?  The tree is healthy, and was repotted last spring.
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MatsuBonsai
John Callaway
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« Reply #8 on: April 20, 2012, 11:12 AM »

I would probably post a picture of the soil surface. Perhaps before and immediately after watering.

You can always do another fall cleanup of the soil.
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J

John Kirby
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« Reply #9 on: April 20, 2012, 01:15 PM »

Just scrape off the fine layer of gunk on the surface, remove, and add fresh soil.
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davestree
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« Reply #10 on: April 20, 2012, 03:44 PM »

Thanks.  That is exactly what I have done, and it seems to be taking water just fine.
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