Please help identify deficincies

[Dee9]

I just could not resist it:

I found it to be best to get seedlings into an inert medium -

and when they want to be fed, they need a high P fertilizer.

Seedlings need a higher amount of Phosphorous than nitrogen.

So, not vegging nutes, but 1/10 to 1/4 strength flowering nutrients.

Phosphorous is also called the 'root maker'

You can find plant starter fertilizer 2 - 3 - 2 to boost root growth of seedlings. Remember, they do not need a lot of Nitrogen in the beginning - they have no where to use it as they have very few leaves.

Good luck, each batch of seedlings will get better...

 

[Avant-Green]

Hey all, a little update, things have improved substantially.

Graffiti, this has been a learning experience for me as well. One can encounter many problems or none at all. I'm glad you can learn from this thread.

Well after initial feedings, then freaking out that they shouldn't even be getting food i think the problem has been targeted. The only change from the last update till now has been increased heat! It appears that the temps might have just been to cold. The plants have shown improvement since a heater has been added to the area. They still need some more time to really get back into the swing of things but the new growth is a really nice green. Even got a heating pad for the babies. Check it out.

This is a shot from a few days ago

And this is from today... still some yellow but getting greener

here are a few group shots

even the one that was almost dying is coming around

Thanks everyone, i'll post up in another few days to make sure everythings on track

 

[magiccannabus]

I use this same soil, but only 25% of my mix. I use that same lime too.

My mix is:

25% Pro-Mix Ultimate Organic Mix
25% Pro-Mix for containers
50% Miracle Grow Perlite(pre-fertilized, and all I could find)

I'm also having spots on my leaves and early signs of what could be calcium problems. I've been using the same mix for a long time and haven't had this till now, but I was never using the MG perlite before. Not sure if that's the problem or what. Very confusing. Now I wonder if it's the Pro-Mix organic....

edit* Just noticed your temps are low. So are mine! This has never happened to me before with this mix, and Kaleel uses the MG Perlite with no problems, so I wonder if temperatures are an issue. Could temperatures be doing something to the soil(or maybe the soil bacteria...) to cause this?

 

[Avant-Green]

Hey Magiccannabus,

I think temps are the issue here, keeping the soil warmer has equaled nice greenery as of late, have not flushed or anything, just waiting for them to dry out and they have even shown some vigor, certain plants anyway... not out of the woods yet but it looks like the cold soil temps may have been causing all the trouble

 

[magiccannabus]

That's so weird man.... I wonder if this "sea based compost" requires soil microbes in order to work properly, and maybe reduced microbial activity during the cold has an impact?

I have checked pH so many times it's absurd and still it looks good. Many of your plants and mine are showing what looks to be minor calcium problems. I wonder if that's related somehow? Can temps lock out nutrients? I've definitely never had a grow get too cold before, it's always been the opposite....

 

[Avant-Green]

In the complete guide to sick plants, ph and pest troubles-

http://www.icmag.com/ic/showthread.php?t=11688

It says that cold soil can lead to lockout of certain nutes i believe, like phosphorous

 

[magiccannabus]

Interesting. I guess it makes sense because some chemical reactions don't happen well at certain temperature.

 

[stihgnobevoli]

if possible can you resize your pictures before uploading them. like 1600x1200 max.

im glad to see your plants recovering. dont overwater.

 

[libby]

h1, what s1ze of breath1ng holes are 1n the bottom of the pot........? thanks

 

[SKAGITMAGIC]

When I looked at the first two pictures I thought maybe a lummen defieciency,I was doing the exact same thing your doing, my girls were sick and I tried foliar sprays with matrix mineral and kept checking everything going insane and the MRS. (love that woman) came home with a lummen meter,The 1000 watts were blinding but the plants were hating it, it had less than 200 lummens and they started getting spots very similar to what your pics showed but worse. hope this helps you. I'm new here or I'd put a link to my pictures of my sick leaves, but they are in my album the last two pics on the first page if you'd like to compare spots

 

[Graffiti]

hmmm, hopefully you're right avant and the temps were your only real problem, I know I had one plant that was doing horrible as a seedling a long time ago and it was because the temps were way too cold. I felt the air around it and it seemed fine, maybe a little on the low end, but when I stuck my finger into the soil, damn it was cold. That damn plant never did recover too well from that incident, but it looks like yours are doing fine (but don't trust my judgment). Keep an eye on those lil fuckers lol

 

[Kinderfeld]

Good to see things are looking up for you. In addition to correcting your temps I would also transplants, it will help the plants and will speed up recovery a lot. Do a search on lime and promix and make sure you put in what is necessary. For those who are novice I would not recommend promix. From what I have seen it is a wonderful mix, and I know vets recommend it often as the absolute best medium which is probably where people get suckled into it but it does rely solely on the grower for everything to be correct as far as its food and soil content, so you have to be on top of your game.

 

[Avant-Green]

Libby they have 6 1/4 holes on the bottom for drainage.

Hey Kinderfeld, for most of the ladies they've turned around. A few are still having some issues. I hear what your saying about the promix. From everything i've found on the mix i'm using it's got a lot of shit in it, including lime and fertz. I definitely still see some problems with some of them. Trying to stay on top of everything... but you're right you do need to be on your game with this stuff

Graffiti i think the coldness of the soil was a major issue, since adding some heat things have greened up significantly.

SKAGITMAGIC i don't think it has anything to do with the lumens, they have a tone of light.

Thanks everyone for the help, i'll post up in a few days how things are going and i'll make sure the photos are a lot smaller.

One thing i see on a few of the plants are like black tips? Not really burnt looking just blackish on the tips and the rest of the leaves are pretty green. They're just getting fresh water now as the promix has plenty of nutes.

 

[GreenWolf]

hi

hi

Things are looking up i see.

 

[Avant-Green]

Yes much improvement thanks to some sound advice and a lot of input from the IC community

 

[Weedninja]

Just for the record, all peat-based mixes need lime to balance the acidity of the peat. I have never burnt a plant with regular promix(and that includes some very finicky sativas). Their organic mix potting soil has to be treated more like a fert than a soil,though, IMHO.

A good mix would be something like: 2 parts regular promix, 1 part perlite and 1 part promix organic potting mix.