Anyone can help me with this deficiency?

[carlo87]

Hi guys my plants have a deficiency that's compromising some fan leaves in a few days. I'm in coco hand watering with Hesi coco nutes at 30ml/10L (max dosage from Hesi chart feed 50ml/10L), I added microelements (GHE B'essentials) and only one time flowering stimulator (Green sensation). I don't understand which element could be, probably a macro one. Here below some images. thanks to those who help me.

 

[stoney917]

How far along they what strain?? look good to me for starting to finish up... I wouldn't feed any more,
One thing I noticed is in last pic is the coco looks dry which can cause yellow , but your plant look fine n just finishing up if your at dy 49 maybe a boost n flushtime...

 

[carlo87]

Thx for answer, I think they still have about 25-30 days or few less for finishing, the coco is dry on top because I drop down HR at 40-45% and the surface dry more quickly but immediatly below the first layer is moist. Anyway today I'll watering. But, if I can ask you, which def is for you? Maybe Nitrogen?

 

[bigganjabud]

I'd say you ain't far from finish tbh them are the leafs that have depleted nitrogen so I'd take em off rather than try add anything now

Start flushing

Get with the dry and cure study

 

[carlo87]

This is the sixth week from switch to 12/12, they took two weeks for bud formation, is it no too soon to lose the fan leaves?

 

[paper thorn]

no, you probably have 3-3 weeks left. just pull those yellow leaves off, this is normal

 

[Dog Star]

You dont have problems and its normal to some leafes fade..

Green Sensation can also do this a bit as he is just phosphor and pottasium whithouth N

 

[Noonin NorCal]

looks like its just maturing, maybe throw some calmag in your mix?

 

[bigganjabud]

See ain't been about for years but still like riding a bike mate lol

Anymore questions feel free to add me we can talk the stalk for a while