leaf problem! help would be appreciated :)

[mihakt]

How long has this problem been going on? 3-4 weeks
What STRAIN are you growing? hashplant2 (HFH seeds)
What was the establishing technique? (seed or clone?) seed
What is the age of your plants? 3 months
How long have they been in the soil mixture they are in now? 2 months
Were they in the same mixture when they were seedlings/smaller plant? If not, what mixture were they in before? same
How Tall are the plants? 50-70 cm
What PHASE (seedling, vegetative or flower) are the plants in? vegetative
What Technique are you using? (SOG, SCROG etc) topping
What size pots are you using? (Include how many subjects to pot) 15 liters (4-5 gal)
What substrate/medium are you using? What brand of soil mixture are you using? /
(percentage of perlite, vermiculite...etc?) 15% perlite
What brand Nutrient's are you using? she get some organic nutrients (palleted chicken manure)
How much of each nutrient are you using with how much water? 1/2 of what should i
How often are you feeding? just once a month ago
If flowering, when did you switch over to using Bloom nutrients? /
What is the pH of the "RUN-OFF"? never checked
How often are you testing pH/ppm/EC/TDS? /
What method of pH test was administered? Using Strips? pH pen? /
How often are you watering? 1-3days
When was your last feeding and how often are you feeding? month ago
What size bulb are you using? sun
What is the Day/Night Temp? about 16-30°C
Is the grow substrate constantly wet or moist? moist
Is your water HARD or SOFT? i use tap water
Has plant been recently pruned, cloned or pinched? /


the plant was bitten by a dog in early stage, then it looks like she recovered and after a while some leafs are started to become yellow/brown and very sensetive on tuch. thec just snap when i tried to bend them gently. it started on the biger leafs and then attack other leafs. she is in the same soil as two others (Hashplant and V99 (voodoo x C99)), 15 liter pot, i did fertilize them once with some chicken manure palletes dissolved in tap water. i didn+t check my pH yet. about 10-14 days ago i flush the sick plant but nothing helped.

anyone knows what should this be?

 

[RubeGoldberg]

When the PH is not under control you're almost guaranteed to be experiencing lockout due to PH not being in the IDEAL range.

Even though its just one plant, if you plan on growing in the future, ph measuring implements are honestly worth their weight in gold. Don't buy a cheap soil probe though. Go for a digital meter.

Your soil may already be close to neutral and tapwater is typically close to neutral as well.
So you may be experiencing an issue where your root zone is stuck close to 7, making some of the nutrients your plant wants in the lower 6's unavailable.

That or it might be too acidic and locking other things out.

no way to really tell until you get an idea of the PH. At a minimum buy some litmus paper or ph drops however these can be hard for reading runoff due to the color of the water coming out

 

[Hammerhead]

I would agree that looks like coco. imo growing in coco with no way to measure your PH is not recommended. You should be @5.8 PH

 

[wilbur]

yeh, it's good to know Ph ... but I 'm wondering if this plant is starved for nutrients seeing as it was fed once, one month ago. also chook pellets may not have the right goodies in them ... nitrogen, yes ... but what other goodies do the pellets contain?
did you make the soil or did you buy it? what goodies are in the soil?
how do you water? I mean do you dole it out as if yr plant is on rations or do you flush it through so that heaps runs out the bottom?
what is yr climate there? hot weather/cold?

 

[Toes.]

try some epsom salts at a 1/2 Tbs to a gallon of water. use about a quart of water at first... wait two days and use another quart. it looks like a mg def... not much magnesium in chicken poop or coco... so I cannot agree with the pH lockout theory... however, you need to know your pH growing those fine genetics

get some fish to go with that chicken too.

I mean some hydrolyzed fish fertilizer works well with chicken poop. maybe some lime in that coco... if your careful you can add horticulture grade hydrated lime. apply exactly the same as the epsom salt... just not at the same time...

you will need to supplement Phosphorous in a little while too.

 

[RubeGoldberg]

i dont think its coco, just soil without any perlite

 

[Hammerhead]

looks brown like coco to me ??? His form was lacking some important info.

 

[mihakt]

growing medium is bought soil (plantella balkonia) it has about 10% of perlite in it. i think he was watering every few days when the soil about an inch deep wasnt moist enough. i know that pH is very important, but i only grow outdoor (have never use pH meter outdoor) and this plant was a gift for a friend who also doesn't have pH meter. i told him to buy pH papers but sth came along and he is in the hospital right now, so i will be able to take a look at the plant in thursday. i will try to get pH of runoff water. climate here is moderate continental with warm summers (46°N). i also get information that he feed all of the plants about a week ago with some light mineral fertilizer.

thank you for all your help