Cann
Well-Known Member
Alright here is a little background: These ladies have been in flower for 4 weeks, they are in Roots Organic soil and have been fed a few bloom AACTs over the last few weeks. They have been fed RO water their entire lives, and therefore have a bit of Cal/Mg issues. To combat this I have been foliar feeding with epsom salts once every few weeks, and about a week ago I applied some Roots Elemental (Cal/Mg supplement) as a top dressing and watered it in. Some of the ladies are showing signs of Cal/Mg issues (yellow leaves with green veins indicating Mg def, and little necrotic patches indicating Cal def) but I am not necessarily worried about the Cal/Mg because it is only on a few leaves and the ladies seem to be pretty happy overall.
My main concern currently is that over the last week a lot of my ladies have started to fade pretty intensely - with a lot of the lower leaves turning yellow and the upper leaves turning pale greenish. I am only at week 4 flower so this is definitely way too early for a regular fade, do you think I should feed them a veg/bloom tea with pretty high levels of N? I have read that feeding too much N in flower will promote leaf growth and not flower growth, but if my plants are showing a deficiency do I really have a choice?
Would it be better to starve them of N and have them potentially be stunted, or feed them N and have them potentially grow a bunch of leaves but not swell up in the buds at all?
Is there anyway that a Cal/Mg deficiency could prevent N uptake? I know that some nutrients affect each other in this way so this is a possibility....
Any input would be greatly appreciated, I want to get as much out of these ladies as I can
Here are some pictures, the first three are of the necrotic spots (Cal def?) the fourth is of one of the leaves I think has Mg def. The last few pictures are just an overall shot of my flower room - you can see that some plants are deep green and healthy, and others are yellowing like crazy.
They are a bunch of different strains (on a pheno hunt currently) so it makes sense that some would want more food than others etc. leading to yellowing of a few but not others.
If anyone has experience feeding N late in flower it would be greatly appreciated. Let me know what y'all think. Thanks in advance
My main concern currently is that over the last week a lot of my ladies have started to fade pretty intensely - with a lot of the lower leaves turning yellow and the upper leaves turning pale greenish. I am only at week 4 flower so this is definitely way too early for a regular fade, do you think I should feed them a veg/bloom tea with pretty high levels of N? I have read that feeding too much N in flower will promote leaf growth and not flower growth, but if my plants are showing a deficiency do I really have a choice?
Would it be better to starve them of N and have them potentially be stunted, or feed them N and have them potentially grow a bunch of leaves but not swell up in the buds at all?
Is there anyway that a Cal/Mg deficiency could prevent N uptake? I know that some nutrients affect each other in this way so this is a possibility....
Any input would be greatly appreciated, I want to get as much out of these ladies as I can

Here are some pictures, the first three are of the necrotic spots (Cal def?) the fourth is of one of the leaves I think has Mg def. The last few pictures are just an overall shot of my flower room - you can see that some plants are deep green and healthy, and others are yellowing like crazy.
They are a bunch of different strains (on a pheno hunt currently) so it makes sense that some would want more food than others etc. leading to yellowing of a few but not others.
If anyone has experience feeding N late in flower it would be greatly appreciated. Let me know what y'all think. Thanks in advance
