Yellow leavetips

[spicecowboy]

Hello, all you fellow growers!

First of all:Unfortunately I can´t provide any pictures at the moment!


BUT: Let me decribe you the problem:

The seedlings have just developed their second set of five fingered leaves, and seem to have recovered pretty well after a bad time in small jiffies with over and underwatering.

They are all looking pretty fine now, especially the RomP19s (what a great surprise this gift from good old Marsurfs is), but:

On some plants the tips of the top leaves are yellow, and look a little deformed.

But it´s only the tips, the rest of the leaves looks nice and healthy.

The plants can not have been burned by the bulb.

Humidity is also okay.

I grow in my regular soil, and never had such a problem before.

The seedlings didn´t get any fertilizer so far.

I transplnted them from Jiffies into pots about a week ago, back then they didn´t look helalthy to say the least.

Now that they grew out so well after only one week, I pisses me even more to see that a new problem seems to come along.

They get 24hrs of light.

One thing that´s certain is that I overwater them a bit immediately after transplanting, because the top of the soil is still not dry.

A really bad start for this indoor grow, but I just wanted to rescue those neclected seedlings and give them a try.

So what the f... could this be?

Any suggestians?


One love,

spice


post scriptum,: please explain the blablabla, but I´m pretty high at the moment...

 

[spicecowboy]

Patience is the key?


spice

 

[vigilo]

sounds like u have ur answer

 

[spicecowboy]

Well..

Well..

sounds like u have ur answer

Yes and no.

Of course the plants had been neglected in the past, but the one variety looks awsome, while the other one shows the symptoms I decribed above.

Looks pretty much like magnesium deficiency, but that normally would have to do with the soil and/or the water, and therefor all plants would be affected,- on the other hand, maybe the Euforias are just more sensitive than the RomP19?


spice

 

[spicecowboy]

And..

And..

I´m really sorry that I can´t show you any pictures at the moment.

Any help would be highly appreciated!


spice

 

[MynameStitch]

Without a pic it's to hard to tell; pics say most of the information; if you get a pic I can help you out and others can help you out as well.

 

[Guest]

Check your ph.....only thing you didn't mention. Check the run off water.

 

[spicecowboy]

Pictures

Pictures

Without a pic it's to hard to tell; pics say most of the information; if you get a pic I can help you out and others can help you out as well.

Hey Stitch!

Thank´s for stopping by and trying to help!


I´m gonna borrow a digicam today and take a few pictures.

The plants are not looking good at all.

spice

 

[spicecowboy]

Pictures

Pictures

Okay,- here we go!

 

[Rastanfisk]

nc (Zn) Micro Nutrient and an Immobile element.


Zinc plays a lot of roles in the plants, first off zinc aids in the plants size and maturity as well as production of leaves, stalks, stems and branches. Zinc is an essential component in many enzymes as well as growth hormone auxin .Low auxin levels can be the cause of stunting of the plants leaves and the shoots. Zinc is also important in the formation and activity of chlorophyll. Plants that have a good level of Zinc, can handle long droughts. So that’s why Zinc plants an important role how it absorbs moisture.


Zinc deficiencies on some plants will have the Spotting and bleached spots (chlorosis) between the veins first appears on the older leaves first, and then goes on to the immature leaves. It will then start to slowly affect tips of growing points of the plants. When the zinc deficiency happens so suddenly, the spotting can appear to be the same symptoms to that of an iron and manganese, without the seeing the little leaf symptom.
Zinc is not mobile in plants so the symptoms will occur mainly in the newer growths. Having a plant that is deficiency in Zinc can cause small crops, short shoots and have a cluster of small distorted leaves near the tips. Between the veins (Interveinal) yellowing is often combined with overall paleness. Pale or grayish, yellowing between the veins; rosetted weak is the signs of a Zinc deficiency.
With a low level of zinc in your plants, your yields will be dramatically reduced.
Interveinal chlorosis is present in the small, narrow distorted leaves at the ends of really shortened shoots and the shortening between internodes. Leaf margins are often distorted or wrinkled. These nutrients will get locked out due to high pH: Zinc, Iron, and Manganese. These deficiencies will often occur together. Parts affected by a zinc deficiency are young leaves and petioles.

Having an excess of Zinc is very rare, but when it does happen it can cause wilting and in worse cases death.


Problems with Zinc being locked out by PH troubles

High ph, Low organic matter, High Phosphorus levels in the soil, and or lack of nitrogen.


Soil

Zinc gets locked out of soil growing at ph levels of 4.5-4.7, 7.5-9.5
Zinc absorbed best in soil at a ph level of 5.0-7.0 (Wouldn’t recommend having a soil ph of over 7.0 in soil) Anything out of the ranges listed will contribute to a Zinc Deficiency.

Hydro and Soil less Mediums

Zinc gets locked out of Hydro and Soil less Mediums at ph levels of 5.7-8.5
Zinc is absorbed best in Hydro and Soil less Mediums at ph levels of 4.0-5.5 (Wouldn’t recommend having a ph over 6.5 in hydro and soil less mediums.) Best range for hydro and soil less mediums is 5.0 to 6.0. Anything out of the ranges listed will contribute to a Zinc Deficiency.




Solution to fixing a Zinc deficiency
Any Chemical/Organic nutrients that have potassium in them will fix a Zinc deficiency. (Only mixing at ½ strength when using chemical nutrients or it will cause nutrient burn!)
And any of the following nutrients will fix a zinc deficiency: Zinc sulfate, zinc chelated, or zinc oxides are adequate fertilizer sources for zinc. Or you can bury galvanized nails in the soil. (Make sure you take off the sharp point at the end to prevent roots from being damaged) Garden Manure, which is slow acting. Greensands, Cottonseed Meal are both medium/slow absorption as well.

Now if you added to much chemical nutrients and or organics,( which is hard to burn your plants when using organics) You need to Flush the soil with plain water. You need to use 2 times as much water as the size of the pot, for example: If you have a 5 gallon pot and need to flush it, you need to use 10 gallons of water to rinse out the soil good enough to get rid of excessive nutrients

http://www.icmag.com/ic/showthread.php?t=11688
there is a picture in the tread - if you click and scroll down

Peace

 

[Rastanfisk]

Sorry posted that 2 times

Peace

 

[MynameStitch]

Yup, rastankfisk is right, that is totally a zinc issue.... you have to have a lockout going...... Cannabis uses so little of it that even if you do not have any in your nutrients it still does not need much..... so you have to have a lockout going, every case of zinc I found was caused by high phosphorus levels in the soil or pH was the cause.....


Your plants are also badly rootbound and I bet that is part of the cause, what soil mixture are they in, and have you tested the pH?

I would transplant that into a bigger pot, also the pots you used was those the disposable jiffy pots? The ones that decompose?

THey are also big enough now to where you can feed them a bit, but if you are going to use a rich soil to transplant them into, I would wait about 2 1/2 weeks before feeding them, the new soil you choose should have enough zinc in the soil to fix your issue......

Or you can get some earthjuice microblast and use 1 tsp per gallon weekly and your issue will go away pretty quickly.

One thing is very important, if you pick some other brand besides canna and advanced nutrients.... do not listen to the feeding directions on the back of the box.....
THey are to strong and you will burn your plants.... just letting you know this before you walk into a mistake.

 

[spicecowboy]

Very informative read, Rastanfink.

Thank you very much for helping a fellow grower.

Zinc deficiency, - never had this before...

I guess it´s really the soil.

It was not that "fresh" and had an overall different look and texture than the soil I normally get from my source.


The interersting thing is that only the Euforia show those deficiency symptoms.

Do you think that some plants are more sensitive to Zinc than others, because that would be the only possible explanation that comes to my mind.

Whatever.

I´m gonna change the soil NOW.

Did you recognoze in the pics that the tips of the leaves allready died?

Do you think that those infected leaves might recover again after getting rid of the deficiany(like with light N deficiancy for instance..)

Oh shit! - I really hope that those plants will grow out well.

It´s too late to start again from seeds for this grow, and the seeds were not cheap too...

Thank you so much for stopping by.

spice

 

[spicecowboy]

High Stitch!

Of course I will not feed them anthing during the first 2 weeks after transplanting, and I allways start with half of the recommended dose when I use some new fertilzer for the first time.

From my experience it is allways better to feed less, because you normally can fix a light deficiency much easier than an overdose, plus this ways there is less salt buildup in the soil.

But in this case, I did not even feed them anything.

The new soil I will use now was specifically developed for Cannabis.

It´s from Plagron and called "Bat Mix".

It contains variouse types of fibre, perlite, worm compost, and bat guano.

N/P/K: 12/14/24

Organic: 1/14/1

Hope this soil would fix the problem, at least it should for 15 Euros/50 Litres.

I´m surprised how small the pots actually look on the pictures.

Of course 7 L is a bit small, but rootbound?

I´ll need bigger pots anyway.

This was actually the first time I decided to use pots that small.

And yes, I use those "self decomposing" Jiffies.

They are okay, but DON´t leave the seedling in there when you transplant.

I did that once, - not a good idea...


Peace,

and thank´s a lot for the help,

spice

 

[Rastanfisk]

Bat Mix is for flowering, you have a shortage of N in the soil. That is good soil fore flowering BUT NOT to Veg !
ma by just flip them over to 12/12 ?
Or Flush, Flush and Flush then give them the dose of the veg nutrition ?
Don´t know my friend, just remember if you are in 24 or 18 hours you need N more then the others.
And just before you Flip over " if you need to get them in bigger Potts" Bat soil is a Super starter for 12 hours because

N/P/K: 12/14/24
Organic: 1/14/1

If you want Just change the soil !

Peace bro ´

 

[spicecowboy]

This soil mix is low in N, but I will switch to 12/12 in two weeks anyway.

I simply can´t afford 120 L of "veg" and another 120 L of "bloom" soil.

According to Plagron you can use their bat mix for the whole cycle, if you don´t let the plant veg too long.

The bad thing is that in the area where I live at the moment, you can´t get good soil, at least not for growing MJ.

Actually you can´t get a ****ing thing here without driving for at least 1 hr.

It´s good to live in the countrside, because you can do the Outdoor thing, and the air is fresh, but oh my God, everything is so far behind here, sometimes I I think I´m living behind the moon.

Jesus, I could get cocaine here within 1 hr, but have to drive to the other side of the world to get some papers and filtertips....

I did my own soil mixes in the past, with good to exzellent result.

Maybe I´m gonna invest my time in that again, because it´s ridiculous how much you have to pay for that growshop soil.

All in all, it was a very bad start this time, and maybe I should start all over again.

Shit happens...


spice :

 

[MynameStitch]

Most strains are different in terms of care and such, so yes some may need more of certain nutrients and that same plant may be funny about the amount of certain nutrients.

I am not sure if zinc is recoverable or not, everyone who had issues with this never came back to show results.... so I would love to know this if you give us an update on the matter

Your soil has high phosphorus levels.... remember when I said zinc is locked out due to high P levels? There is where it came from.......

Those self decomposing pots are good for outside, but inside I would not do so, it takes longer to decompose since your indoors..... outdoors it would decompose quickly; but when it takes longer to decompose it can cause fungus and the soil to stay to wet from it holding water.....

so I would not use those anymore.

Rastank is correct about the mixture, it is for flowering; you would not have this issue if you were in flowering, because they use way more P and K levels in flowering than in veg, so it is not taking up as much in vegging which there was an excess of P which lead to Zinc being locked out.

I would not start over, I would just change the soil mixture for now transplant them into different soil, your plants are very much able to recover just get them into a different mixture, which brand or mixture were you using before?

 

[spicecowboy]

Update..

Update..

Now it´s about two weeks since I transplanted them.

They don´t look too healthy, and the leaves that had allready been affected by the deficiency didn´t regain their normal colour.

But it seems like there is a good chance they will grow out of that.

My "problem" in general is that I stopped drinking about 4 months ago, which is actually a good thing, but due to withdrawl, everything got a bit disorganized, and my self confidence had to be rebuilt.

I feel better every day, and realize that I shouldn´t follow some peoples advices.

This, and the fact I didnd´t realize the soil was shit this time led to the overall neglected profile of the garden.

I´m pretty much back in the game right now, and we´ll see how things turn out.

Maybe there will be a positive surprise when it comes to harvest time.

Peace, and thank you so much for the help,


spice


P.S.: Stitch, you´re the man, thank´s for taking the time and helping out so many fellow growers!

 

[spicecowboy]

Some development

Some development

The leaves finally got a good green colour again, and the yellow "discolouration" disappeared.

That is really a nice surprise.

Sorry,still no pictures available, but once again, thank´s for the help.

spice

 

[MynameStitch]

No problem, glad they are turned around for ya! Happy growing!