First time serious problem .

Hello .

First thing i want to say is that im not a first time grower , actually this is my 5. grow .

I never had this kind of problem . Usualy i dont have any kind of problems but this time ...i cannot beliave it . its so early for this kind of problems :( please help .

Im using always same medium like 4 times before, i never had problem with this medium . PH is of medium is 5.5-6.5 . Im watering with filtered water , ph 7.0

runoff ph is 6.7

Temperature : minimum - 17,5 C
maximum - 24, 0 C
Humidity is around 45 % .

Im growing under 400 w hps light .

all 3 plants are 7 days old .

one plant have totaly burned edges , second and third are wird ... don't know how to explain . please look at the pictures .


everything is ok , conditions is same like 4 times before ! but something is not ok ! ! help ?

only different thing is that now im using feminized seeds => white berry .

please if can someone help me before my plant dies .

Are there any premixed fertilizers in the soil? They can be pretty devastating to seedlings sometimes, since you never really know when they're going to split open and deliver their goods. The soil may be good quality, but it doesn't look like it's aerated all that well. A 30-50% mix of perlite would help the roots 'breathe' a lot easier.

Also, a 400W HPS may be a little intense for such young seedlings... unless you're able to keep it real close, and not burn them. Because of the need to keep the light further away, it may cause them to stretch a good bit early on. Fluorescents are great alternatives for seedlings and clones.

how big are those containers? either they are massive or those are tiny sprouts.

i agree on the soil. make sure it wasnt pre-fertilized, and if so flush it. also dont use any fertilizers until week 3 minimum.

a medium ph of 5.5 is pretty low, and may cause issues in soil. try bumping it up a little if you can.

Quote:

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Originally Posted by hybridlove420

a medium ph of 5.5 is pretty low, and may cause issues in soil. try bumping it up a little if you can.

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Actually, he said the runoff is 6.7. Which is perfectly fine for soil...

Quote:

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Originally Posted by Mr. Clandestine

Are there any premixed fertilizers in the soil?

Also, a 400W HPS may be a little intense for such young seedlings... unless you're able to keep it real close, and not burn them.

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yes, there is some premixed fertilizers in the soil but that isn't the problem . maybe is but just for these seeds because its was perfect for seedling before .

i can keep 400 w bulb on 15 cm from plants and not burning them

:))

so....premixed fertilizer can be a problem for these feminized seeds ?

because if the seeds was not feminized , I would start with new one but i pay them allot of money so....

Quote:

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Originally Posted by hybridlove420

how big are those containers?

doesn't matter how big they are but they are 13 L .

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like i said ....im not fully beginner . why would i fertilized them when is premixed fertilizer in the soil ?
thats why i use these kind of soil . i usualy keep my plants 4 weeks in veg and for that time i dont add any kind of fertilizer .

one correction .... runoff ph is 6.2 !

im asking again .... can please someone experienced grower or someone who had similar problem help me ?

everything seams fine, but there is a problem and i cannot see witch .

thanks . peace .

Quote:

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Originally Posted by DrM200

so....premixed fertilizer can be a problem for these feminized seeds ?

because if the seeds was not feminized I would start with new one but i pay them allot of money so....

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I totally understand, I see no reason to give up on those seedlings. They should pull through fine in time. I just try not to add nutrients to my soil for a seedling mix, because the slow release fertilizers - chemical and organic - tend to shock young roots, and may even burn them. This is much less of a problem when the plant is more established.

Are you using a cooltube? 15cm is very close for seedlings, but hell, if you can do it then more power to ya! That should definitely cut down on the stretching. Take care. :jointsmile:

thanks . i didn't think that the soil with premixed fertilizer would be a problem because of previous grows .

i will see what will happen in time . of course i will not give up , that is not a option .

yeah, im using CT and air circuit include only CT. For ventilating box and "mixing" air in there i have another fans .

seedling don't stretch .

big thanks for advices . i will let u know how plant will turn up .

peace !

If you're growing "purebreds" vs bagseed and those that are more sativa oriented are much more sensitve to nute overdoses imo. Those are definitely burned. Mj plants are not one-size-fits-all. ;)

How far away is your light btw?

I am definitely experienced with nute burn.

I would just water them with ph adjusted water and let nature take its course.

GOOD LUCK

ok ....my problem is nute burn because of the premixed fertilizer in

the soil .

question is next :

my theory is that the plant will use excess of nutrients in time

and then start to grow normal with green leafs without yellowing

and burned leafs .

is this true ? ?

or the plant will be yellow and shitty entire her grow cycle ?

can the situation get better in time ?

any advice or anything is very welcome ! :)

peace and thanks .

It depends.....too many nutes may stunt the plant, it may grow out of it, or it may kill them. Lots of choices there. ;)

Looks like nute burn to me. I understand your bewilderment at having a different result when you've used this medium before. Most likely you have a strain that doesn't like a lot of nutes.

here is a update with my problem...

first plant with totaly burned edges (on first picture) is started

to grow in fact normally, in some kind of way :p

but second and third plant (the ones who was a little

deformed) continued to grow as well as teh first plant but

again, a little deformed .

my question if somebody know the answer is simply :

why ? :)

Later i will update pictures so all of u can see whats going

on .

Peace ....

First and second plant

opinions ?

I am not a soil grower but I'm wondering if that is a reaction to too many nutes.....have you checked the ph of your water and your soil runoff?

the third plant....she is less developed then other 2 .

btw.... this is day 11 .

thanks for comments .

weedhound => as i said .... ph of water of 7.0 , runoff is 6.5 .

Then i'd bet money that too many nutes are messing up your babies. I've had a few babies that are all curly like that at the beginning and straighten out later so it can be genetic sometimes......is that called phenotype? Or genotype? STINKY!!