Zero root growth in 2 weeks.

D

Duhh

Active Member
I transplanted a few smaller plants from coco to dwc, they recovered from the transplant and don't look too bad now, well 3 don't look too bad, 2 look like crap, but there is zero new root growth on the ones that have recover and look OK, like nothing, do I just have to wait longer or something?

This is my first dwc, but I'm taking care of it all and temps are good ph is good ec is good, water looks good.

Also is there some additive that people like to use to encouraging root growth in dwc? I didn't think it was needed due to all the oxygen and nutrients mixing but maybe I'm missing something?

Thanks.
 
D

Duhh

Active Member
Oh hey Ive realized the guy at the store sold me Canna aqua flores for my veg cycle, DWC is all new to me so I didn't even notice was for flowering. I've swapped all the flores nutes out now for some powdered veg nutes I had, ec is near 1000, ph 5.5, water temp around 18 Celsius, so maybe I'll see some roots growth now? Would using the aqua flores at npk of 4.4.11. Have made my roots not grow? The plants are showing some signs of nitrogen deficiency, they're OK but slight yellowing at tips and yellowing and a few falling off at bottom of plants. Man I'm glad I caught that.
 
Bucsfan80

Bucsfan80

Well-Known Member
A pic would help. I'm not sure why roots would not grow. Unless plants are just stunted or recovering from something
 
plantinggreen

plantinggreen

Active Member
I am now wondering if people offer their own suggestions where their theme or preference if you will comes first. If I were to just say the same thing, purchase my product use my method or design etc.

For me, deep water culture doesn't work. It would be nice to set up a comparison but I don't think we have to with so much photographic evidence. Some IBM computer thing has already figured out how to grow I am sure or at least in progress. What I have read is you can use more air pumps and air stones for higher (maximum) dissolved oxygen. And a reservoir chiller for the same reason and microbe pathogen growth. It is ok but I think the others are better while I have not tested them myself even rockwool slabs in commercial sized rooms look impressive (performance) compared to DWC. I think shallow water culture with flood and drain is better so they are not submerged or allowed to dry. More oxygen for roots. The container sizes can be smaller although I would not go to such an extreme of using one liter coco coir for flowering plants with liquid/salt plant food. You will read people say that stems root in water and I have not had that happen. In fact they never root. I had one clone make roots in a root riot peat plug and one other that finally make fine tiny roots after weeks in an OxyCloner. There is something people aren't saying and I don't have the indoor grow experience with all of this different equipment and chemicals some of it is costly.
 
D

Duhh

Active Member
hey thanks guys.the ec seems to be going up ,its.now 1200 but all ive added was ph down, I read before that could be the plants discharging some nutes into the water? They look ok tho, like not amazing but they dont look sick or dieing.
 

Attachments

D

Duhh

Active Member
The extra nitrogen from the veg feed not bloom feed they were on,seems to have helped them for sure.
 
rkymtnman

rkymtnman

Well-Known Member
Duhh said:
hey thanks guys.the ec seems to be going up ,its.now 1200 but all ive added was ph down, I read before that could be the plants discharging some nutes into the water? They look ok tho, like not amazing but they dont look sick or dieing.
Click to expand...
how about some root pics?
 
D

Duhh

Active Member
Will get some roots pics in a bit.

Yeah I see the nute burn, epuld that stop root growth tho? the nutes that caused that would have been the npk 4.4.11, they ve just been in this new water for about 35 hours I think.

Thanks for the help.
 
D

Duhh

Active Member
rkymtnman said:
and just a fyi, nute NPK values don't lead to burn. high EC/ppm lead to burn. many people use 20.20.20 with no issues
Click to expand...
Yeah the ec kept going up on those ones, I watered it down but it was rising. I didn't mean the specific npk caused the nute burn i just meant that's when they got burned when in that mix.

But would any of this stop roots from growing? The npk the over feeding? If they're drinking water and they don't look so bad now, well a bit beat up yeah sure, but they functioning, so why no new roots in like 2 weeks? There were decent coco roots on them. Will get photos tomorrow of roots zone.

Thanks for the help.
 
D

Duhh

Active Member
rkymtnman said:
kinda depends. if it's just burn, then i'd go even lower. if burn led to lockout, then you need to flush with plain water and then start back on much, much lighter than that and slowly work up
Click to expand...
Burn can lead to lockout? Do you think my plants look like they've been locked out? I looked at some photos of lockout some look similar and others look really bad tho. The similar ones could just be the N deficiency and nute burn in my plants tho couldn't it?
 
You must log in or register to reply here.
Top