At loss of words.

darkdestruction420

Well-Known Member
Nutrient Solution Burn

There's a good chance that this bud was subjected to nutrient solution burn. These symptoms are seen when the EC concentration of hydroponic solutions is too high. These symptoms also appear when strong nutrient solution is splashed onto the leaves under hot HID lamps, causing the leaves to burn under the solution.


Figure
Many hydroponic gardeners see this problem. It's the beginning of nutriet burn. It indicates that the plants have all the nutrients they can possibly use, and there's a slight excess. Back off the concentration of the nutrient solution just a touch, and the problem should disappear. Note that if the plants never get any worse than this here, then the plants are probably just fine.


Figure
Figure 4 is definitely an over-fert problem. The high level of nutrients accumulates in the leaves and causes them to dry out and burn up as shown here. You must flush with clear, clean water immediately to allow the roots to recover, and prevent further damage. The find the cause of the high nutrient levels.

Over Watering

The plants in Figure 1 were on a continous drip system, where nutrient solution is constantly being pumped into the medium. This tends to keep the entire root system completely saturated. A better way would be to periodically feed the plants, say for 1/2 hour every 2-3 hours. This would give the roots a chance to get needed air to them, and prevent root rot and other problems.
Don't be throw off by the fact that the plants in Figure 2 are sitting in still water, this is actually an H2O2 solution used to try and correct the problem. Adding an airstone to the tub would also help add O2 to the solution.




compare leaves on his plant to these....looks might similar
 

CAashtree

Active Member
eza the more i go back and look at those pix, the more i find myself agreeing with you. especially the last two pix. leaves in the background look really nice, not limp or floppy, not at all overwatered. very slight yellowing on the very tips, but most severe damage seems to be at random leaves on the plants. but again, im a soil grower and fully use the buffering capabiilities of said medium. ill just watch from here on out. good luck Drio, hope you get it worked out.
 

eza82

Well-Known Member
I have made my case.. lol :) We agree to disagree DD .......lol

Great looking grow other wise, looks as though you are looking after them !
 

Drio

Well-Known Member
Okey guyz.

Lets get this straight here ,- I thought i made a really good first post but it seems more explenation are needed.

I grow in Coco ,- and i waterfeed flush once a day in 15 liter containers with °C freshly mixed nutrients.

There is no shortage of 02 in my medium. Quite the opposite -

I do not over water them ,- this problem is strictly located to the leafs and stems and as i have figured out with Eza here and some of my own rationalization i have formed what i think is the correct analysis.

WHats happening is Natrium deficiency , heat radiation damage ( upper leaves , dont think i posted pics ) and alongside that , - a relatively serious lack of Mg.

This is caused by high calcium content in my tab water ( 0.2 EC - mix of calcium and iron ) and over feeding of micro nutrients alongside under feeding of vegetative nutrients in the initial stage of flowering 2-3 week.

What is also starting to appear is Potassium deficiency from me lowering the EC level to combat what i believed to be nute-burn first.

Mg and Potassium deficiency would explain the narcotic , yellow drying mid fan leaves and reddening of stems. When they die they curl and deform so this further supports Ezu's theory.
 

Drio

Well-Known Member
Hehe ,- Ezu you wanna see how big they are :>

I think youll be pleasantly suprised.
 

eza82

Well-Known Member
"I grow in Coco "-- bro its Mg and reffer to origanl post for your ACTUAL or secondary problem-

coco I swear by --BEST medium in the world !
 

Drio

Well-Known Member
I foilar fed them veg nutrients containing high Mg.

After that i remixed nutrients at 5.7 Ph and 2.2 EC

Alot more flowering and veg nutes in ratio to the micro nutes.

And yea ,- i love Coco for its forgiveness.

You simply cant go wrong with it.

-

Ive bin playing with the idea of getting a h202 for a while >,<

Ive heard it keeps the roots healthy also.
 

eza82

Well-Known Member
yep, It has a few benifits.... 1. roots are chemically pruned with H2o2, & help with new a developing roots. 2. It also places extra Oxygen into the water , which the plant will also be happy with :) 3. Kills mold and bacteria spores.
 

CAashtree

Active Member
this is good stuff. despite all my ranting and raving about the wonders of soil, im gonna be goin with coco next cycle. so thanks in advance drio and eza for helping me to avoid this problem. please keep us posted on the outcome drio. wanna be sure it wirks for you.
 
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