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outdoor hydro, nutes problem?


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#1 joeya

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Posted 05 July 2018 - 02:01 PM

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Hello all,

I'm looking for any feedback on this plant. It's a strawnanaberry, growing outdoors near Denver, CO.

Using the hempy bucket technique, clay balls on the bottom, coco coir on top. Water three times daily with Fox Farm GrowBig on feedings 1 and 3, FoxFarm Big Bloom on feeding number 2.

I have been fighting spider mites with a solution of Green Clean from Central Coast Garden Products. 

About a week ago, several leaves turned brown and mushy in the middle. Lower fan leaves started turning yellow as well. I gave a good flush with distilled water for a day, then began adding FloraMicro from General Hydroponics to the solution for feedings 1 and 3. Now, the fan leaves are looking like classic nute derivation, as you can see  in the pictures attached. The newest growth looks pretty healthy, but I still have die-off on my fan leaves. 

 

Also, it seems to be flowering already, I've never had a plant with so many pre-flowers all over it. This strain is not supposed to be an auto, and this plant is in full sun all day, so the flowers are a bit of a mystery to me as well. Does anyone think I should switch to Tiger Bloom already, or just treat it like regular veg and keep at it all summer?

 

Thank you for any input!


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#2 KnuckleDragger

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Posted 06 July 2018 - 10:48 AM

Be careful about too many nutes. The burned leaves won't come back, but if they don't burn anymore you should be OK...


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#3 joeya

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Posted 06 July 2018 - 05:33 PM

thanks KD, I did not even consider that it may be nute burn, but I'm flushing it again today and I'll try diluted nutes after the flush. 


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#4 joeya

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Posted 08 July 2018 - 10:01 AM

Well, I think I got this one sorted out. I've been adjusting my water pH before mixing the nutes, and not checking the pH after mixing. Apparently, the nutes are quite acidic. I got the water to 5.7 before adding in nutes. I tested the nute solution last night and found that it was at 4.5! Hopefully, correcting this will improve her health!


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#5 KnuckleDragger

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Posted 09 July 2018 - 10:35 AM

Joeya, You live in Denver. They pull out of several reservoirs, pH can change a lot...


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#6 joeya

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Posted 09 July 2018 - 12:41 PM

Actually, the pH out of the tap has been rather consistent, at 8.2 for the past couple years. Something else is screwy though, as we've seen the pool also get acidic when left to it's own devices. Anyway, now that I know what I'm fighting with, I can monitor more closely. It's probably time to invest in a pH meter before my next grow in hydro. Using chemical test kits is much more error prone. 


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#7 Suzycrmcheese

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Posted 09 July 2018 - 12:42 PM

Hopefully on the right track now joeya.  Never done hydro, but have always checked ph after adding nutes...drastic change.  Have noticed a ph change with my water through different seasons too.


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#8 joeya

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Posted Yesterday, 10:25 AM

So, after a few weeks, it's time to circle back. 

I believe my problem was that this plant was root-bound! My wife suggested I transplant into soil, so I cut it out of the hempy bucket and found a solid ball of roots growing around in circles. I sliced down the root ball and planted it in Fox Farm Ocean Floor and it seems healthy now, and has returned to a good growth rate. As the yellow leaves die off and dry up, I am removing them, and there are very few new yellowing leaves now. I'm going to take a few clones and try them in hempy again, since I really want to see how they finish outdoors here, but apparently, I can't do that with a long veg cycle or they'll get rootbound again. I figure if I clone this week, they should have just enough time to veg before they go into flower cycle. 

Thanks for the feedback all, now that I know where I went wrong, I'm a bit embarrassed!






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