Three strains, all of em yellow & curly

[loka]

Some pics of em:

PLZ help!


Strain of Mj?
Full moon from Sativa Seedbank, Safari mix by Mandala and Low Ryder Fx

Hydroponic or soil?
Soil

From seed or clone?
Seed, all of them

Age of plant in question?
Lowryder 3 weeks, others 2 weeks

What stage (Veg/Flower; how many days into)?
Veg

Medium (Soil, Rockwool, Hydroton etc.)?
Soil, first low grade nutrition. At repotting highly nutritious one used.

Container/Pot size?
1.4 L

Have they been transplanted, if so how long ago?
1.5 week ago

Nutrients added?
Standard garden shop nute

Ratios of nutrients (N% P% K%)?
N 8% P 3% K 5%

Feeding schedule?
Every watering, half dose 1 ml of nute to 1 liter of water

When were they last fed/watered?
Yesterday, without nutes though

How are you determining when to feed/water (weight, wilting, etc.)?
Looking, feeling, basically when they are dry.

Tap/RO/Distilled water?
Tap, allowed to stand for at least 24 hours

Light intensity/Age of bulb/Wattage?
~160 W of CFLs, used for one short grow before

Distance to the canopy?
Glass in between plants and lamps. Distance to glass maybe 0-5 cms

Temps at canopy?
Unknown, but it seems the glass is 35-40° C, and some of the leaves are against the glass. I dont think this is causing it though, cos it worked with two Low Ryders earlier.

Temps at root zone or reservoir?
~20°C

Day/Night temps (Min.-Max.)?
22° C max 16° C min

Current air flow (CFM)?
Unknown

Is there air blowing directly onto plant?
Yes

Using CO2?
No

Relative humidity?
40-60 %

Growing technique (Scrog, Sog, Supercropping etc.)?
None yet

Has plant recently been pruned, clones taken, fimmed or pinched?
I fimmed/topped two of the Full Moon's 3 days ago

Pests?
No

Chemicals used to irradicate?
No

 

[Blackvelvet]

Very good details provided but you failed to mention ph. This is critical. When you say highly nutritious new potting soil at transplanting, did it contain ferts? Are they slow release? Sometimes soil mixes intended to transplant a tree or shrub can burn young plants. Does the soil mix contain dolomite lime? Do your liquid ferts contain all 6 micros: iron, manganese, zinc, copper, boron, and molybdenum. Temperatures below 20 c will lead to problems. Best advice for now is switch to water without nutes till you get a handle on ph, transplant to a less salty soil mix, etc...

 

[stealthballer]

looks like nute burn to me

 

[Widow Maker]

nutrients quickly add up in soils and imo you have nuteburn. I would flush em out and then start with a fertilizer regimen every other watering.

 

[TokeD]

It looks like a burn defficence you probably cought later on, as the plant didnt get severly burned but the slight areas that did began to die back and wither up. you may want to consider flushing your medium once weekley with a PH'd water, as things may tend to build up a bit in salts and such.

 

[loka]

Thanks everyone!

I'll measure the PH later today. I think it's the soil, too strong one. Of course I stopped the nutes =)

 

[MTF-Sandman]

Is that plant directly in front of a fan? Kinda looks like wind burn...

 

[Horticulture]

Slight foliar feeding of Epsom salt. Prefert soils simply dont have enough MG to last longer than 3 weeks- 1 month.

Edit: 1 1/4 weeks shouldnt have depleted it.