Dark Green Veins/Yellow Margins Sure it's N Def but would like advice please
Posted 05 April 2012 - 12:32 PM
The last week or so i've noticed the lower leaves are yellowing so have been feeding fish mix at 2ml per litre and it had a feed yesterday too at 4pm. Also in the last two feeds were 1.5ml OTB and 2ml OTB per litre. Plant is in a 3L round pot.
I've checked the plant abuse chart/plant problem solver and it seems like its just hungry for more 'N' but could also be something else like over-feeding so I would just like to double check with more experienced folk as to what the problem is.
I did do two more pics but have just re-sized them far too small, FML
Different part of plant -
I'll go take some more pics if the first one is not enough to go by.
Thanks in advance for your responses,
Posted 10 April 2012 - 03:31 PM
Chlorophyll has the same structure as Hemoglobin, except that it has a magnesium atom in place of the Iron atom. Chlorophyll is importand in photosynthesis; that is how the plant produces sugars.
A magnesium deficient plant is identified by intervenial chlorosis(that is, between the veins, which remain a green color), and necrosis. The problems starts at the bottom of the plants and progresses to the top of the plant. The tips of the leaves die and then usually curl upwards
I forgot to ask mate, is it newer growth that as the chlorisis? if so could be iron deficiency.
This post has been edited by sensiblue: 10 April 2012 - 03:38 PM