huge yellowing problem at top during flower, needhelp urgent :(

[Guest]

hi guys, i got 2plants, flowering for almost a month, running on:
a 250 watt hps bulb
beeing fed with asolution ph 6/7 containing 4ml per liter of biobloom and another 4 of delta9

the room temperature is on the 27ºcelsius

and they looking like this on the top :S

is it heatstress...( ma best shot...but they got like that really fast...and temps seem ok)
a deficiency of some kind as the leafs are curl upward?(sulfur ?the only deficiency that starts at the top :S)

the pistils seem to have changed color when i got still more30 days of flowering :S

is this kind of damage reversible????or im better of starting another grow?

thanks

 

[Guest]

btw pics in ma galery, i couldnt post urls :S...

 

[MynameStitch]

Dude you are seriously burning the hell out of your plants; your locking out phosphorus the main nutrient that is helping your plants bloom.

4 ml per liter of water? it's more like 4 ml per 4 liters of water..... how often are you feeding them?

WHat solution are you using for pH 6 or 7?
You talking about pH down?

No, that is not heat stress; this was caused by something else; the veins are remaining green and some of them are showing other problems too; looks like possible lockout of slightly magnesium on some of them, but extremley faint... the rest are toxicity........


This is not a sulfur prolem; yes it does start on the top; but it starts from the petioles forward; meaning it starts from the leaf stem and works it's way to the leaves tips and it yellows.


Are you growing in soil? if so what mixture are you using? How often are you watering them?

Your going to have to end up flushing your plants out with a lot of water

How tall are your plants how big are your plants? what size pots are they in?

 

[Core]

dude, to much nutes for shure!!!flush'm out as soon asap...ohw an feed them a 'mild' nutrient feeding afterwards...or the damage that has been done will turn out worse!

 

[Guest]

really?

i tought fert burn starts alwats below :S

its2 plants a ice cool and a white berry...both in 6 liter containers...both containers have a water reservoirwherethe roots go when they get too big....

im using to up the ph hesi ph up
i got the same kind of yelloowing when ilocked out mag due to low ph problems (then i bought the hesi thing)

they getting this kind of stranght in feed cause the ice cool was showing signs of P and k deficiencies on the leafs bellow...so i uped theyr dosage until it stoped

i tought it really was heat, what do i do now?

btw im insoild using lightmix...but this soil wasflushed manytimes before flowering dueto the ph problem


plz help more

thanks....

 

[Core]

brand of that lightmix?

 

[Blackvelvet]

plz help more

thanks....

Is biobloom 1.1-2.5-2? At 4ml per liter you would be feeding this: (in ppms)
n 44
p 43
k 66

Thats very, very weak. What's in Delta9 fertilizer? Try to be specific. Include the fert numbers like 10-10-10

Dolomite lime does not last forever with repeated waterings. You will probably benefit by adding calcium and magnesium to your fert water if your ferts do not already have them. I doubt biobloom has either.

 

[cheebman]

hey fella's,,
i have the same problem w/ my girls at the moment.. since i seen this im going to flush em right away.. thanks

 

[MynameStitch]

Is biobloom 1.1-2.5-2? At 4ml per liter you would be feeding this: (in ppms)
n 44
p 43
k 66

Thats very, very weak. What's in Delta9 fertilizer? Try to be specific. Include the fert numbers like 10-10-10

Dolomite lime does not last forever with repeated waterings. You will probably benefit by adding calcium and magnesium to your fert water if your ferts do not already have them. I doubt biobloom has either.

Dude, BV you are the ONLY damn person on this entire site that really ticks me off; cause you don't grow; all you are here doing is trying to **** with peoples grows cause your a cop. Your information you just posted is total bullshit and you know it; anyone who listens to your information is so niave.

Since your a cop I can't tell you to go grow your own cause you would be breaking your law; so since ya can't do that you go around trying to **** up people's grows and laugh about it; since you guys can't stop other growers you can surely act nicely and try to make it look like you are in good intension and try to buddy up to people to make you look like a nice guy; but I am not falling for that dude.

Nute burn does not always start from the bottom; this is true if it's seedlings and small plants; bigger plants it happens randomly where hot spots happen in the mixture.....
then the rest of the plant can be affected depending on how bad it is.....

pH will also cause you problems with nutrients being absorbed and yes using too much nutrients will cause you to lock out other nutrients......

 

[Guest]

sorry guys fior the lack of info...

biobloom is from biobizz - n-2% p-6% k-3.5%

delta9 is from cannabiogen (to make buds get big )- n-2% p-4% k-3% mg-1% (it has magnesium :S)

since you say its not a heat problem probably its a ph problem, ma dam ferts make the mixture so dark its hard to calibrate by the cromatographic label...
or maybe a moisture problem...mixed with a excess of nutrients...

but one thing is forsure, this is a exclusive problem of the top leafs, as beneath the kolas everything is fine and nothing burned....evenma white berry, is only burned on the leafs that get light...the opther kola has almost no light and its cool :S il try to upload more pics


btw i already usedmixtures this strong inmalast grow and worked out fine...i used 4mlbiobloom...mixed with 4 more of bioheaven, and 4 more of topmax and theynever burned lol...and they would eat this everyday it was a pure indica though

so should i flush them, regulate ph, and feed them again so they can absorb the p better?


PS.thanks everyone for the help

 

[Core]

brand of that lightmix?

are you shure its soil and not soiless...again....what brand is it?

 

[Guest]

sorry the soil is lightmix from biobizz,
and it was flushed or 4 times before i got them into flowerring cause they were burning...in the end i found out it was cause of them dam ph which was too acidic...and locking out the mg...so i treated with epslon salts and it solved the problem

so the soil should have no influence on this one :S i think....

but then again im always learning since i started growing lol...

 

[Guest]

ok guys i just found the problem....serious ph issue lol....

too muchnutes acumulate4d the salts...the salts lowered the dam ph...and when i started flushing the water was 4ph LOLOL

no wonrder ma beauties were complaining so much...like yuou said...no Pandno MG...so now im flushing them as we speak

then ill just give them a big dosage of TLC...along with a mild very well calibrated dosage of delta9, and put some epson salts in the mix right??

now a controversial question...should i cut off the most brused leafs in orderto getmore light since those leafs are running at 20% of capacity...and below other leafs can get the light better...or should i let them stay?

thanks really a lot for the help...

stich you use msn?

 

[MynameStitch]

Nope, sorry I do not use MSN.

Well; you saved me from typing that post lol. So your post above mine; that is what is wrong and causing your problem.

Core knows his stuff and he has seen many pH problems before; he can spot them quickly.

I would not yank any leaves unless there is only about 20 30% of the leave is necrotic and not much green left to it.

The plant will drop it once it has used up stored nutrients..... brown crispy leaves where there is no green left you can remove them.

 

[Core]

heya good you found the issue....i'm getting quite good at spotting ph issues like Stitch said .....coz biobizz is 100 % organic...i use plagron myself...2 good dutch mediums.... and my ph going in is always between 5.7 and 5.9....that realy is the optimum ph for that kind of medium...

 

[Guest]

core do you got msn? lol

btw should i foliar feed them while they recover?
how much ml per liter?

 

[MynameStitch]

I find that foliar feeding only really works with seedlings and smaller plants.... for some odd reason...

May I ask why you are asking everyone if they have MSN? lol

 

[Core]

just PM Stitch or me for that matter ...most of the time we are here daily...but dude i woz just chucking my ..i'm no plant Dr what so ever...don't kno jack shit man..just that you kno...

 

[Guest]

i had a great weed dr on ma msn, but he doest come here in a big while so im trying to be the pupil of a new master lol

anyways ill pm you guys next time ma babies are almost dying lol...

hmm i always loved to foliar feed lol...seems so much more natural

thanks a lot for the info, without you guys i would probabably be buying ma 4 fan LOL...

btw i posted the pics in the galery i dont think it burned muchmore since yesterday....and to exibit ma fantastic LST LOL

 

[Blackvelvet]

Ok. Reduce ferts. Your at 160 ppm nitrogen. Try 2/3 of this. Investigate adding calcium to your fert program since your already adding mag with the delta9.

Peace.