Help my plant is sick (photos)

[toubalas]

SOIL GROW

Strain - unknown
# of Plants - 1
Grow Type - Soil
Grow Stage - veg
Bucket Size - 15x25x25cm
Lights - (3) 23 Watt CFL (2 warm 1 cold)
Nutrients - (20-20-20)
RH - 50% to 55%
Room Temperature -around 25 celcius
Solution Temperature -65 to 69
Room Square Footage - 50x50cm
Pests - None Known

my leaves seem to be "burnt" there are some pictures to help you identify the problem

thank's in advance, a first time grower

ps
if more pictures or stats are needed please let me know

 

[fatty]

What type of soil you using dude and do you know the ph of your water

 

[toubalas]

i dont know the soil type cause a friend gave it to me, the ph of the soil was a little below seven when i checked before i planted the plant and i use tap water

 

[TanR]

Hi toubalas.

Welcome to 420 Magazine! Sorry to hear your having difficulties. Have you given the plants any fertilizer/nutrients? Do you know if there were any already present in the soil?

Below is chart of common deficiencies and abundances you might find helpful.

 

[Mono]

Have you splashed any nutes on the damaged leaves?

 

[fatty]

Have you used any food in your water and are you letting it stand for 24 hours before use

 

[toubalas]

thanks for the chart even though i cant recognise my plants condition among them. i dont know if the soil had any nutrients. i am using a water soluble fertilizer which contain: 20% N (4,3% ammoniac, 5,7% nitrate, 10% urinous), 20% P (P2Ο5 - phosphorous pentoxide), 20% Κ (Κ2Ο - potassium oxide), 0.04 Fe , 0.015 Cu, 0.04% Mn, 0.005% Bo, 0.09% MgO, 0.015% Zn, 0.0005% Co, 0.0001% Mo. I didnt know i had to let it sit for 24 before use but from now on i will. i also havent splashed any nutes on the damaged leaves ,but i will as soon as the dark period begins

Thank you very much for helping me through all this

 

[fatty]

Do t splash water on them dude we just thought it could of caused the spots my advice is just use plain water for a couple of waterings then a weak feed then water water feed water water feed and so on that food is very strong

 

[toubalas]

i have had this schedule already (i feed it aprox every 10 days) but the "disease"
hasnt stopped spreading if you have any other ideas as to what
could have caused this id be happy to hear you out

here are some new photos to help you help me

 

[Mono]

Try plain water only for a while, be careful not to get any nutes on the leaves.

Is it only on the old, lower growth? Or developing on new growth too?

 

[toubalas]

new growth has some signs but nothing like to older ones, only some of the new leaves have "burnt" edges .
why you think i should stop using nutes? i thought that the most propable cause was a nute defiiency

 

[fatty]

Deffo overfed I think like mono said only water for a bit and make sure you get plenty of runoff(water coming out the bottom)when you water

 

[toubalas]

the deficiency first started when the plant was about 3 weeks old and i first started using nutes 3-4 days later. I am tottaly inexperienced but it seems to me it is unlikely that overfed is the cause of the problem.

 

[Lady Cannafan]

Another great pictorial on problem plant issues, hopefully you can find something here:
Cannabis Plant and Pest Problem Solver - Pictorial

 

[Mono]

Cannabis plants work better on less nutes than more.

Once you over feed it can take 2-3 weeks for them to recover. Best be patient, use pH balanced water until we can further diagnose the problem.

 

[xtrchessreal]

Just to be clear, I am also new to growing, on my second grow now. My first grow was okay about 2.5 oz per plant - dry and cured. My second grow was perfect in veg, beautiful, 18/6. I transplanted just before going into Bloom 12/12 and no transplant shock so all was well.

Then, I added water soluble nutes...Oh NOOOOoooooo within a day I had problems.

What I forgot was that the organic FFOF/HFO mixed soil has plenty of nutrients for at least a month maybe more. So tainted my perfect grow with a simple slip of thought.

The point is that soil has nutrients for a good while and there is no need to add soluble nutes for a while, depending on soil type. If you add 50% or even 25% of scheduled nutes to a good fresh soil you will likely have a nutrient burn or lockout issue.

The affected leaves will never recover but the new growth can and will with just plain water for several weeks. I won't concern myself with what I did, the plants are doing great except for the leaves that were affected. The new growth is looking as good as it was before I put it in bloom.

Like others here are saying just use plain water for a couple weeks it will recover. Then use only 25% of what the instructions say, after two more weeks increase to 50% and that is all you will likely need from then on. If you do increase beyond that then use caution maybe do a 75% for a while and then 100% but give it time to show whether the plant is going to be burned again between feedings.

X

 

[Mono]

^^ agreed

 

[Milkman87]

Hi toubalas.

Welcome to 420 Magazine! Sorry to hear your having difficulties. Have you given the plants any fertilizer/nutrients? Do you know if there were any already present in the soil?

Below is chart of common deficiencies and abundances you might find helpful.

Great chart tanR