phosphorus lockout due to cold

[Paulray54]

Is there anyway of fixing phosphorus lockout due to cold with a week old seedling?

 

[Elmer Bud]

G`day P54

Calcium could help .
I had probs with lock out a cpl of Winters ago . The hydro shop guy put me onto some cal mag for foliar . Made a diff over night . My plants were several weeks old and not seedlings so not sure how a seedling will react .

Thanks for sharin

EB .

 

[Ickis]

A week old seedling is living off its' cotyledons. I don't think it can have lockout due to cold root zone temps.

 

[Paulray54]

It hasn't grown any leaves and the stem is purple and it's winter time.

 

[GreeeeN GRassss]

what temputres are you running, can you give more details ? what medium, light etc ?

 

[gmanwho]

Over saturated medium an low root temps can exhibit phos def..

 

[RonSmooth]

I doubt it is a deficiency that young. Probably normal. Stems can be red, purple, green and all shades in between and be perfectly healthy.

 

[Paulray54]

temp 22C ,medium john innes no 1+ 40% perlite,light 150w cfl inside 5 g space bucket.

 

[papaduc]

John innes no.1 is terrible shit. I'd use something else. They won't be cold at 22c unless they're going colder in the night.
What's a 5g space bucket?

 

[Ickis]

What is the seedling looking like now? Did it grow a set of leaves? Did it get taller?

It has been a week... 7 days since you asked the question. That is a good amount of time in seedling time to see some changes.

What is it looking like?

 

[Ickis]

I don't know if it is actually possible and I said I didn't think it could be phosphorus lockout because seedlings live off their cotyledons but in the interest of knowledge I have to point out that on page 7 of the infirmary link by stitch there is a picture of a seedling with phosphorus lockout due to cold temps.

So I guess you need to make it warmer.

 

[Paulray54]

the first set of leaves it grew one of them had 1/3 missing and now the other set of leaves it's grown one is smaller than the other.here's the link for a space bucket http://www.spacebuckets.com/

 

[Paulray54]

also i think it's showing signs of calcium defeciancy with yellowing leaves with brown spots.

 

[GreeeeN GRassss]

why would it be a def in soil at such an early stage, the soil should have alot of nutrients stored in it already. at such an early stage it does not need any nutes.. the soil may have to much nutes in it. is nute burn an option anyone ?

just get some pictures up.