N def or something else?

[IlluZiOn]

It cant be pH, because I have pH meter and soil pH is around 6.4.

I use 10/15/10 fertiliser
Plant is in 8 litre pot.

SOIL:


How long has this problem been going on?
1 week
What STRAIN are you growing?
bagseed (looks staiva)
What was the establishing technique? (seed or clone?)
seed
What is the age of your plants?
4 months
How Tall are the plants?
72cm
What PHASE (seedling, vegetative or flower) are the plants in?
flower
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot)
2 gallon
What substrate/medium are you using? What brand of soil mixture are you
peat
using?(percentage of perlite, vermiculite...etc?)
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful*
Schultz Plant Food 10-15-10, I use it every 3 days, 7 drop per litre
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"?
6.3
What method of pH test was administered? Using Strips? pH pen?
pH pen
How often are you watering?
every 3 days
When was your last feeding and how often are you feeding?
2 days ago, I feed 2 times per week
What size bulb are you using?
100w HPS
What is the distance to the canopy?
What is your RH Factor? (Relative Humidity)
55
What is the canopy temperature?

What is the Day/Night Temp? (Include fluctuation range)
~80f
What is the current Air Flow? (cfm etc.)
Is the fan blowing directly at plants?
yes
Is the grow substrate constantly wet or moist?
moist
Is your water HARD or SOFT?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
Tap
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

Plant leaf tips looks dried-up/ dead, nute burn?

 

[stinkyattic]

The tips are a bit scorchy looking.
How tall is the plant?
You may be due for both a soil flush and a larger home for the plant.

 

[IlluZiOn]

The tips are a bit scorchy looking.
How tall is the plant?
You may be due for both a soil flush and a larger home for the plant.

Plant is about 72cm tall

 

[IlluZiOn]

bump...

 

[stinkyattic]

Just plain peat with no lime? The soil pH will tend to drift towards the natural pH of peat, which is in the 4.5-5.5 range... too low even for a soilless mix. Even if you aren't overferting, you will still need to do a proper flush to bump it back up into the correct range.

Um you'll have to figure out the conversion but a foot of main stem per gallon of soil is a good rule to follow for pot size.

 

[IlluZiOn]

Just plain peat with no lime? The soil pH will tend to drift towards the natural pH of peat, which is in the 4.5-5.5 range... too low even for a soilless mix. Even if you aren't overferting, you will still need to do a proper flush to bump it back up into the correct range.

Um you'll have to figure out the conversion but a foot of main stem per gallon of soil is a good rule to follow for pot size.

Type: flower soil
pH: 6.5
configuration
tree barks
light and dark grow peat
chicken muck:90litre/m3
dolomite lime: 8kg/m3

 

[stinkyattic]

Oh I thought I saw 'peat' listed in your form up there. So you do have lime, good.
Lots of chicken dook for a soil you'll be flowering in though. You want to be able to deprive the plant of N later.

 

[IlluZiOn]

Oh I thought I saw 'peat' listed in your form up there. So you do have lime, good.
Lots of chicken dook for a soil you'll be flowering in though. You want to be able to deprive the plant of N later.

Soil nutrient concentration
N: 100 milligramme per litre
P: 80 milligramme per litre
K: 400 milligramme per litre

You recommend flushing?

 

[Buzz Lightyear]

Micronutrient problem

Micronutrient problem

Shultz plant food 10-15-10 does not have all the micronutrients. Check your label for iron, manganese, zinc, copper, boron, and molybdenum.

Happy growing icmag!


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