SpiderK
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looks like clear salt build up to me cap.....im seeing calcuim deficiency, and lockout....check you rrun off please? i would like to know what the ph and EC is on that run off...and ill let you know for sure if thats your issueshit. :facepalm:
Were you running multiple lights as well (hps, MH)?
Here is pikchurz...
HPS: Leaves only doing this that are closer to light.
View attachment 342956
MH: Same distance leaves. You can see some symptoms but not nearly as bad.
View attachment 342957
I think I am not feeding enough. I am flushing now and gonna hit them with 1.8EC to be sure. Ill know if I made them worse in a couple days. Plants and flowers look healthy. Coco much better than MPB with no signs of bad health whatsoever but coco has been getting lots of food... MPB I've kept around 1.2 EC.
higher light intensity will have the plant drinking more because it is perspiring more water through transpiration, higher the heat, the more water thats in the plant will be evaporated in the air...higher transpiration rate means the plant will grow faster...wich also correlates to faster transpiration....so your plant will be drinking more water than it will be eating...this means if you keep feeding at the same rate, the plant will eventually not be able to take up everything, leads to salt build up, and that causes a reverse osmotic effect within the plant....it will then use the water moisture within its self, and instead of relocating it towards the leaves, it sends to to the roots to keep them hydrated...leaving your leaves looking like shit(K def, Ca def, leaves taco...ect....).....Yeah you know what tripped me out.
Quantrill said under higher light intensities you actually need to feed less. I thought I was wring and asked him to clarify. He clarified.
I need to get at that guy and ask him why, because I have always heard the exact opposite. I figured maybe it was something to do with salt evaporation and leaf scorch.
Im about to do an experiment comparing various LED fixtures, and one of the things I'm interested in learning is how the various spectrums effect cannabinoid profiles. According to some of the LED companies, their profiles are leading to better profiles by allowing the plants to better absorb their required nutrients. I'm supposed to have access to testing labs for my samples, and I'm going compare the profiles from the lab analysis with their spectrum maps and see what can be learned. Its possible we may learn some solid information about how light spectrum effects cannabinoid levels and nutrient absorption.
shit. :facepalm:
Were you running multiple lights as well (hps, MH)?
Here is pikchurz...
HPS: Leaves only doing this that are closer to light.
View attachment 342956
MH: Same distance leaves. You can see some symptoms but not nearly as bad.
View attachment 342957
I think I am not feeding enough. I am flushing now and gonna hit them with 1.8EC to be sure. Ill know if I made them worse in a couple days. Plants and flowers look healthy. Coco much better than MPB with no signs of bad health whatsoever but coco has been getting lots of food... MPB I've kept around 1.2 EC.
Cap did this ever get resolved? I realise this thread is a few years ago. Thew reason I ask is when you used your light meter what was the total lux at leaf/canopy surfaces? Keeping in mind that anything over 10,000 lux actually inhibits the process of photosynthesis which in my mind would lend itself to over fertilization due to the inhibited photosynthetic process. Or am I all kinds of way off here. Would seem based on distance from tree with 4000 w of mh/hps you may be blasting the plant with levels in excess of 10,000 lux. Just my 2 cents.Yeah you know what tripped me out.
Quantrill said under higher light intensities you actually need to feed less. I thought I was wring and asked him to clarify. He clarified.
I need to get at that guy and ask him why, because I have always heard the exact opposite. I figured maybe it was something to do with salt evaporation and leaf scorch.
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