is she sick?

[gramsci.antonio]

Ok, new round new ladies new thread...

What system are you running? 40% perlite, 60% coco

What STRAIN are you growing? Dutch Passion Power Plant, 100% fem

What was the establishing technique? (Were the seed or clone?) Seed

What is the age of your plants? 45th day of veg

How tall are the plants? 4-5 inches


What Technique are you using? LST

What is the Water temperature? Same as room

What Nutrient's are you using? How much of each if using multiple? Later

What is the TDS/EC/PPM you are using? PPM=around 770



Are you sure your calibration is correct on your equiptment? yes

When was your last watering? once every 4 days

When was your last feeding change? (ie. grow-bloom-micro-additional) Same from seed

What size bulb are you using? 200 W floro


What is the distance to the canopy? few inches


What is your RH Factor(Relative Humidity)? 60-70%

What is the canopy temperature? around 70-75 F


What is the Day/Night Temp? (Include flucutaion range) 70-75

What is the current Air Flow? (cfm etc.) 75 CFM

Is the fan blowing directly at plants? no

Is your water HARD or SOFT? mix of RO+tap, final 60 ppm

I've been ferting with one liter and a half of water every 4 days.

In the water i place:

-3 ml of Canna A
-3 ml of Canna B
-1 ml of AN root stimulator (now no more)
-2.5 ml of Cannazym

ph @ 5.8, no runoff.

 

[HeadyPete]

You're not feeding enough for a 45 day old vegging plant, I would say...

Yellowing lower leaves = N def - this is probably because of your low ppm #s

dark green/gray blotching - P def - this is probably from your low ph. You must collect and measure runoff ph.

When my ph drops the first problems are p def and Cal def....

First correctly measure ph, correct if need be to 6.3ish, then we'll go from there.

 

[gramsci.antonio]

First correctly measure ph, correct if need be to 6.3ish, then we'll go from there.

i always thought that in coco it should be 5.8, am i wrong?


anyhow tomorrow i'll do a flush to collect some runoff and do the test...

 

[MynameStitch]

It depends, coco can be in that range, not all strains like the range so best bet is 5.5 to 5.8 range....

Ya, I agree with petey, up your dosage a bit, the plant is just now starting a nitrogen deficiency, up the grow a little bit, I would give at least around 5 ml of it for now

 

[Guest]

Myself I think that 6.0 or even more is fine...

I read a nice paper about this...

The point was made that many choose 5.8 because of the highest availability of phosphorous.... he said that really wasnt that important as phosphorus has plenty of availability at 6.0 to 6.3 or so....

For me 6.0 is easy to remember.....

 

[gramsci.antonio]

Myself I think that 6.0 or even more is fine...

I read a nice paper about this...

The point was made that many choose 5.8 because of the highest availability of phosphorous.... he said that really wasnt that important as phosphorus has plenty of availability at 6.0 to 6.3 or so....

For me 6.0 is easy to remember.....

Canna says that 4 ml is the highest dosage adviced.

Isn't it better to raise the quantity of water?

eg: 3 ml/L on 3 liters, rather than on 1.5 liters?

 

[Guest]

I would say by looking at your pics that you might do what you are doing but do it per lliter instead of 1.5 liters.....

 

[gramsci.antonio]

I would say by looking at your pics that you might do what you are doing but do it per lliter instead of 1.5 liters.....

oh sorry i explained bad.

I give 3 ml/l, wich is 4.5 ml in 1.5 liters of water.

 

[Guest]

Same principle.... you can give the same stuff just reduce the amount of water by 25% or so...

or you can proportionally raise everything else....

but its just as easy to make the mixture stronger by lowering how much water you add...

 

[HeadyPete]

I keep my plants in coco at 6.3 and they are happy. They dropped to 5.8 once because I got lazy calibrating my meter and they looked like shit - calcium and phosphorus lockout - green gray blotches of P def and brown spots and edge burns of cal def. Got the ph back up and they are all green and bushy and beautifully growing with no defs at all. The charts I have looked at show P availability drops at 5.8.

I don't even get into the ph debate anymore, I've heard so many differing opinions, I just know and see what my plants like - 6.3.

 

[MynameStitch]

Ya, I don't get into pH arguments either, because all strains are different and some can take a range, some can't which is why there is a range

 

[gramsci.antonio]

ok today i watered/flushed with 5 liters of [email protected]. The runoff was @ ph 6.09, so it should be fine now, shouldn't it?

Anyhow here some photos:




And here a photo of the sick leaves i trimmed:

 

[MynameStitch]

Ya, should be fine now
Lets see how she perks up soon

 

[gramsci.antonio]

Ok some updates.

Today i waterd 850 [email protected] ph and the runoff was 775 [email protected] ph. Great.

5 l of water @100 ppm
15 ml of canna A
15 ml of canna B
10 ml of blackstrap molasses
12.5 ml of cannazymes

I was wondering: the runoff has a lower ppm because the plant is eating all the nutrients, or is just the coco that is filtering the water?

Anyhow some pics:




I've noticed some burnings:





is this cal def?

 

[HeadyPete]

yes yes and yes

plants will take some nutrients, coco will catch some, you have cal def. It's possible it's from your low ph before, it takes some time to sort these issues out. If it gets worse use CalMag or similar. Your water does not have sufficient minerals in it. Existing damage will not correct.

Ph is looking good, keep it around there, 6.2ish.

 

[gramsci.antonio]

ok i didn't checked them for two days and this is what i got.

It looks like a severe lack of P anc Ca, am i right?

What should i do?









thank you

 

[sirgrassalot]

They look like they have a little nute burn. Did you feed them the last time you looked? How close to the lamps, how hot? The lower looks like light bleaching.
What have they been fed etc etc.


SOIL:
Cannabis strain:
Seed or clone:
Age of plants:
Height of plants:
Growing phase seedling, vegetative or flower:
Technique: (SOG, SCROG etc)
Pot sizes: (plants per pot)
Substrate/medium: (soil, coco etc.)
Brand & soil mixture, % of perlite, vermiculite etc:
Nutrients used (brand name) & water ratio: - Frequency:
Frequency of watering:
My last feeding was:
My feeding schedule is:
TDS/EC/PPM of nutrients used:
PH "RUN-OFF":
Method of pH test administered, strips, pen etc:
My lighting is:
Distance to the canopy:
Relative humidity:
Canopy temperature:
Day/night temp: (fluctuation range)
Current air flow: (cfm etc.)
Fan is blowing directly at plants:
Substrates condition, wet, dry etc:
Hard or soft water:
Water source, tap, and reverse osmosis (RO),
bottled, well, distilled, or mineral:
Recent pruning cloning or pinching:
Insect or bug infestation:
Pest chemicals used: If so, what and when:

 

[gramsci.antonio]

the plants are almost 2 months old, not yet in flowering.


I answered almost all the question in the first topic of this thread.


The only change is that i've raised the tap:ro water to 1.5:1 in order to increase cal income.

 

[sirgrassalot]

Sorry I missed page one or didn't realize it was there. So what I said in my post is what appears to be the issue(s) to me.

 

[MynameStitch]

You are feeding them too much and the one has some light bleaching, flush your plants out a little bit, are you feeding every time you water? If so, stop doing that and always have plain water in between feedings at least once.