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Help YELLOW !!!

Wify

New member
Outdoor, well mixed soil.
last week temp. around 18°C day, 14°C night
last 10 days RAINING so humidity 80 to 90 % day and night also lumen very low!!

How long has this problem been going on? NOW 7 DAYS
What STRAIN are you growing? 40 STRAINS!!
What was the establishing technique? (seed or clone?) SEEDS
What is the age of your plants? FROM 15 DAYS TO 4 MONTH
How long have they been in the soil mixture they are in now? FROM 15 DAYS YOUNG TO 4 MONTH OLDER
Were they in the same mixture when they were seedlings/smaller plant? YES
If not, what mixture were they in before?
How Tall are the plants? FROM 5 TO 10 CM YOUNGER TO 55 TO 80 CM. OLDER
What PHASE (seedling, vegetative or flower) are the plants in? VEGETATIVE
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot) 1 LITER POT FOR OLDER LESS THAN 1/2 LITER THE SMALL PLANTS
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) SHAMROCK "SEED&MODULAR" PH 5.3-5.7 EC 24-33 mS/m www.bnm.ie 10% vermiculite 10% perlite
What brand Nutrient's are you using? METROP
How much of each nutrient are you using with how much water? in *Knowing the brand is very helpful* MR1 40ml/100L; AMINO ROOT
40ml/100L; CALGREEN 10ml/100L
How often are you feeding? just when the soil become dry, last 10 days was RAINING i feed them just 1 time!!! before when was sunny every evenings...
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"?
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?
When was your last feeding and how often are you feeding?
What is your RH Factor? (Relative Humidity) outdoor near a river 85%
What is the canopy temperature?
What is the Day/Night Temp? (Include fluctuation range) 10 days ago 31°C/19°C - last 10 days 19°C/14°C
What is the current Air Flow? (cfm etc.) actually I put plastic transparent to protect for too much rain! more humidity no fan but it's outdoor close to the wall of the house

Is the grow substrate constantly wet or moist? yes!!!
Is your water HARD or SOFT? the water is from a fountain that come straight from mountain the PH is 7.3 to 7.6
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? mineral from mountain
If using tap water, what is the ppm/EC/TDS of the water right out of the tap?(Only if you have a tds pen)
If using RO,Distilled,mineral water, what is the ppm/EC/TDS without any additives?(Only if you have a tds pen) 0.04
Has plant been recently pruned, cloned or pinched? no
Have any pest chemicals been used? If so what and when? no
Are plant's infected with pest's?
no

last week I broke my ph meter!!!!


usually the water is 7.2 to 7.5
this week I used Aptus regolator, starbooster, Metrop MR1,amino,calgreen.
and after all products become 5.3 to 5.5 so I have to rise to 5.8

but when I broke the PH METER i decide to feed them just with rain water to keep them safe... (rain water ph 7.1 to 7.3 ec 0.02)

I just received via post my new PH meter but my plants looks very bad unhealthy!

please ask any question to help those creatures..


thanks Wify


:canabis:
 

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Wify

New member
more pictures

more pictures

:bashhead::bashhead:
 

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Wify

New member
more...

more...

:moon:
 

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Wify

New member
more...

more...

:wave:
 

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Wify

New member
other details and pics

other details and pics

I bought from ebay germany the new Ph meter for soil.... now I have to wait for shippment... so I'll be able to check soil's ph...

10 days ago when I broke the PH meter (pen) I decided to give only water (no nutrient!!) but the Ph water is 7.3 to 7.6

Also the Humidity last 10 days was very high, then I was thinking Fungus or mold and def. of some elements !!!!!

thanks to Juan, darrmann, funkybud, kush farmer :wave:
 

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Wify

New member
more pictures

more pictures

:ying:
 

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John c

New member
WIFFY I don't think this is a nutrient or P.H issue myself.

I suspect you've got a pathogen in your soil or this is a genetic problem or damage to the sprout when they were inside of the seeds...some how ?
 

Wify

New member
I know very hard to understand

I know very hard to understand

mmmmm... me too I was thinking Bacteria, Fungus or Mold or the last bad a virus... I wanna try step by step I have to fix it
 

Wify

New member
green leaves are the only safe, are not new green...

green leaves are the only safe, are not new green...

answer for ibjamming:
the new green leaves that you mean are the only plants safe from this problem....
so the green mean that not all the plants are sick ....
more difficult to investigate!!!
 

darwinsbulldog

Landrace Lover
Veteran
hey wify, IMO it's definitely pH issues possibly too low locking out Iron i believe. i had the same issues. bring the pH back to about 6.8 ish and you'll be fine, the yellow will turn back green within a few weeks

attachment.php

this is one of my girls who had Iron def due to pH issues and today you wouldn't even notice. so it's one of the "better" defs to have haha

"Iron (Fe) is required by plants for enzyme function and acts as a catalyst for the synthesis of chlorophyll, ie. the reason new shoots go yellow is because the synthesis of chlorophyll in these new leaves is reduced/blocked by the inability to take up Fe. Young active tissues need Fe to thrive.

Fe def usually indicates pH imbalance, one way of treating them is with foliar feeds with chelated ferts containing Fe, Mn and Zn in them, as these defs are often found in combination. you can also use compost, chelates, iron oxides and iron sulphates for fast absorption. supplements should be added foliarly and via the medium. adding rusty water also works!"


info from Marijuana Garden Saver by H.C. Stitch


darwin
 

Wify

New member
What brand Nutrient's are you using? METROP

How much of each nutrient are you using with how much water? in *Knowing the brand is very helpful* MR1 40ml/100L; AMINO ROOT 40ml/100L; CALGREEN 10ml/100L

How often are you feeding? just when the soil become dry, last 10 days was RAINING i feed them just 1 time!!!!

10 days ago when I broke the PH meter (pen) I decided to give only water (no nutrient!!) but the Ph water is 7.3 to 7.6.
before when was sunny every evenings... cause the soil was dry
 

Wify

New member
darwinsbulldog you give a power to breath!! cause I don't feel good like my plants...
so do u think PH problem, 24 hours ago I started to fix it to 6.5 to 6.7
do you think it's ok? also I wanna give extra Fe to see what's going on...

I also bought Forum mz a fungicide!! cause I find in 1 plant of 3 (Maxi grassomatic) the top completely fucked by mold!!!!
cause last 10 days was raining very strong!!

thanks to everybody trying to help me and the babies!!!
 
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