F
fliege
- 31
- 8
Hello,
I am on my fourth grow. Generally I'm happy with the progress, but I see some odd burned patches on the older leaves of one plant and this is giving me cause for concern. Things are as follows:
* Plants: 3x Northern Lights autos and a 1x Shiva Skunk auto. 2.5 weeks old
* Medium: ~6L pots. Soil composed of a 50/50 mixture of these two:
1) Westland Gro-Sure All Purpose Compost with 4 Months Feed
https://www.homebase.co.uk/gro-sure-all-purpose-compost-with-4-months-feed-10l_p284784
2) Westland bulb planting compost
https://www.homebase.co.uk/westland-bulb-planting-compost-20l_p431147
* Environment: 2’ x 2’ tent using 270 W of CFLs. Gentle PC fans. Currently temps are around 24 C.
* Fertiliser used: Fed once with 1/5th strength Canna Terra Vega Flores.
* Water: tap water. Since around day 15 I have been adjusting the pH down to around 7. Out of the tap it's around 8.5.
* Issues of note: For a short period in the first week I had higher temperatures and the seedlings looked a little heat-stressed. This has improved since then (partly because I finally located my temp probe) and now the tent is at around 24 C at pot level.
Problem
I noticed early on that there were small "burned" patches between the leaf veins on the older leaves of one of the seedlings. Today I saw similar patches developing in newer leaves on the same plant. The other plants seem fine but all maybe are a bit dark green. The leaves on all plants look rather dark green, so I'm not planning to fertilise. I'm concerned about the burned patches. Could the Gro-Sure soil be hot and this is nute burn?
Images
All four plants
Burned patches seem to be developing on this newer leaf
These burned patches are on an older leaf.
I am on my fourth grow. Generally I'm happy with the progress, but I see some odd burned patches on the older leaves of one plant and this is giving me cause for concern. Things are as follows:
* Plants: 3x Northern Lights autos and a 1x Shiva Skunk auto. 2.5 weeks old
* Medium: ~6L pots. Soil composed of a 50/50 mixture of these two:
1) Westland Gro-Sure All Purpose Compost with 4 Months Feed
https://www.homebase.co.uk/gro-sure-all-purpose-compost-with-4-months-feed-10l_p284784
2) Westland bulb planting compost
https://www.homebase.co.uk/westland-bulb-planting-compost-20l_p431147
* Environment: 2’ x 2’ tent using 270 W of CFLs. Gentle PC fans. Currently temps are around 24 C.
* Fertiliser used: Fed once with 1/5th strength Canna Terra Vega Flores.
* Water: tap water. Since around day 15 I have been adjusting the pH down to around 7. Out of the tap it's around 8.5.
* Issues of note: For a short period in the first week I had higher temperatures and the seedlings looked a little heat-stressed. This has improved since then (partly because I finally located my temp probe) and now the tent is at around 24 C at pot level.
Problem
I noticed early on that there were small "burned" patches between the leaf veins on the older leaves of one of the seedlings. Today I saw similar patches developing in newer leaves on the same plant. The other plants seem fine but all maybe are a bit dark green. The leaves on all plants look rather dark green, so I'm not planning to fertilise. I'm concerned about the burned patches. Could the Gro-Sure soil be hot and this is nute burn?
Images
All four plants
Burned patches seem to be developing on this newer leaf
These burned patches are on an older leaf.