yellow leaves, N def but cant fix

[nano]

Hey everyone, I'm having a hard time with my babies right now, looks like a N def, but it I've added nutes and it hasn't got better so far...

SOIL:
What STRAIN are you growing?-------------M39
What was the establishing technique? (seed or clone?)--------clones
What is the age of your plants?----------2 weeks in soil
What PHASE (seedling, vegetative or flower) are the plants in?---------veg
What size pots are you using? -----------------4inch
What substrate/medium are you using?---------pro-mix with 15% perlite
What Nutrient's are you using? -----------Optimum-----5ml/4L
What is the pH of the "RUN-OFF"?------------6.5
When was your last water?----------1day
When was your last feeding?----------1day
What size bulb are you using?---------2-27w daylight cfl + 2 growlux fluo tube
What is the distance to the canopy?----------10in
What is your RH Factor? (Relative Humidity)--------45%
What is the canopy temperature?-----------23-24 celcius
What is the Day/Night Temp? (Include fluctuation range)---24 day, 18 night------6 degree fluc
What is the current Air Flow? (cfm etc.)------2 90 cfm exhaust, 1 90 cfm intake, and 1 circulating fan at low
Is the fan blowing directly at plants?---------circulating fan yes
Is the grow substrate constantly wet or moist?------no
Is your water HARD or SOFT?-------soft------distilled water
Has plant been recently pruned, cloned or pinched?------yes, but was showing sighs of def before clone cuttings
Have any pest chemicals been used? If so what and when?--------no
Are plant's infected with pest's?--------no

I've fed them with half strenght veg nute+ LK reg strenght

pictures to come ( not enough posts)

 

[chrones]

how big are your clones and do you have any pictures?

 

[nano]

there you go











Oh, and i forgot, i spray them once a day with AN's VHO since I want to make mothers out of them.

 

[nano]

they are roughly 6 inches

 

[MynameStitch]

First off I would be getting them out of there pots and into a bigger pot..

2) your ph is off, you are using promix, which is considered soiless medium your ph needs to be that of hydro 5.5 to 6.3
Your ph is high.

3)How are you testing your ph? strips? Soil probe? Meter?


yes, but was showing sighs of def before clone cuttings
You want to avoid taking cuttings that already have yellowing leaves; because if the plant roots slowly the leaves will yellow from using stored nutrients from the leaves just until it gets it's root system established. So the leaves act like cotyledons to seedlings.


I've fed them with half strength veg nute+ LK reg strength

We need to know the amount used and how often...

what brand are you using?

Looks to me first you need to get your ph under way first... fix it. The little browning of the leaves in the last picture may indicate that was caused from ph issues.

Since you are also using distilled water you will need to get a cal mag supplement later on.... distilled has very low ppms and virtually nothing in there; need a micronutrient supplement if yours does not have much in it.

your yellowing may be either caused by a lockout or not enough nitrogen, either way you are at a lose lose situation, because if it is there the plant is not able to absorb it properly from the wrong ph.

If you feed it more you may burn them after ph gets fixed; so first get ph under way then fix the yellowing if it needs to be fixed; by adding veg nutrients.

 

[nano]

First of all, thankyou so much for looking at the thread and trying to help me, it's really appreciated!


I test the PH using a meter made by Eutech Instruments

Just to clarify, the cuttings taken were still very green, but thankyou for pointing that to me, I'll make sure not to do it again

I usually feed them with Optimum Hydroponix 5ml per 10 liters(A+B, A is 5-0-2 and B is 1-5-3) and some Liquid Karma full dose once a week, with a watering in between (I weight the pot to make sure the medium is dry)

Like you said, I will first start by lowering the PH, since i was thinking pro-mix was soil i always used water PH'd at 6.2-6.5. I'll do like with my hydro setup and use PH5.5

 

[MynameStitch]

Ya, sounds like you are are getting on the right track then.

So you use 5 ml of each a and b?
Or just 1 1/2 ml of each?

Liquid karma contains nitrogen from the seaweed extract in there too..... so you would think with the nutrients you are using you should not be having feeding issues.... but if you are using only 1 1/2 of each that would explain the contributions of nitrogen issues and the ph would not be just the cause of nitrogen not being absorbed
Ph is defiantly not helping and also contributed to the deficiency from the amount in the pro mix not being absorbed.

 

[nano]

Ya, sounds like you are are getting on the right track then.

So you use 5 ml of each a and b?
Or just 1 1/2 ml of each?

Liquid karma contains nitrogen from the seaweed extract in there too..... so you would think with the nutrients you are using you should not be having feeding issues.... but if you are using only 1 1/2 of each that would explain the contributions of nitrogen issues and the ph would not be just the cause of nitrogen not being absorbed
Ph is defiantly not helping and also contributed to the deficiency from the amount in the pro mix not being absorbed.

Sorry for not being clear enough, it's 5ml of each part A and B. Thankyou for helping me, its really appreciated. I'll give an update pretty soon!

 

[MynameStitch]

using that amount weekly. every 7 days right? You should not be having a nitrogen issues, so get your ph fixed

 

[nano]

ok, now I'm having problems lowering the PH in the promix. I flushed with 5.5ph water, and now on my next watering, I test the runoff, 6.5 again. What can I do to lower my ph in promix?

 

[MynameStitch]

You could use just a little bit of peat or a little bit of coffee grounds....... but I would add them to a sample soil mixture... the one you are using mixed with a big of either coffee grounds or a little bit of peat and check the run off so you know how much you can use to get the right ph.

Pro mix already has peat in it........ you have lime in by any chance?
Which pro mix is it that you have?

 

[nano]

The promix im using just says on the bag ... potting and seeding mix, for plants with a ph requirement from 5.5 to 7. It says it has limestone in it, but does not say the quantity. I will try with the coffee grounds (used i suppose) since its pretty easy to find in my house, and wil try peat if the coffee does not work. Btw, the coffee, do you mix it with the watering or do I really need to disturb the plants roots by remixing the medium in the pot?

 

[10k]

Oh, and i forgot, i spray them once a day with AN's VHO since I want to make mothers out of them.

Ohhhh.....

.....so thats why they look so overwatered....

I'd discontinue that foliar spraying every day, since it's probably messing with the plants roots systems normal nute uptake ability.

Just curious about that AN stuff...
Can you tell us why this AN VHO product is good for future mother plants ?
Not knocking AN's product line, but I'm just really curious what kind of bill of goods comes along with the label on this particular jug-o-juice.
Maybe just post a copy of the labels "sales pitch" and also the actual ingredients & guaranteed analysis.

 

[nano]

Ok 10k i'll take your advise and stop spraying, as a matter of fact I stopped 3 days ago cause I got lazy a bit lol. I'l try to find the label, or just take a picture of it and put all the info i can find on that product. I tried it since it was recommended from a friend and the liter was around 20$, good for a lifetime for my setup's scale.

 

[MynameStitch]

I would defiantly say most of the products AN makes are bogus; there are about maybe 10 at the most possibly 6 or 7 products that are actually good that show results.....

Another thing; that stiffens up the plants stalks; woody stems makes poor clones; so I would agree with 10k sounds just like a sales pitch.