Is This a Cal Mag Deficiency

BudMane

420 Member
I just wanted to know if this is a cal mag problem

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They are under a spider farmer SF 4000 and growing in coco
Beautiful girls my friend.
I only see one leaf with possible damage
Newer growth looks a little hungry but not bad. Are you using cal mag?required in coco.
Bill
 
Looking healthy.

Not sure what you are seeing. There is some reflection of the lights. I do see some white spots that are under larger fan leaves that do not look like light reflection but I cannot tell for sure.

Otherwise looking good with some possible need for a bit more fertilizer as @Bill284 mentions. That does not look bad enough to be overly worried about at the moment.
 
Yes I’m using cal mag 7ml a gal do I need to apply more or I’m straight
I measure my calmag in ppm,not ml/gal. Your girls look healthy as far as a calmag def goes. So I wouldn't increase calmag.
Her color on the other hand gives me pause, newer growth can be a lighter color at first . Yours look like a little more than just new growth.
How are you feeding her my friend?
Bill
 
I measure my calmag in ppm,not ml/gal. Your girls look healthy as far as a calmag def goes. So I wouldn't increase calmag.
Her color on the other hand gives me pause, newer growth can be a lighter color at first . Yours look like a little more than just new growth.
How are you feeding her my friend?
Bill
Hand watering flora flex cal mag silica
 
Ok. That last pic shows better what you're talking about. Im awful at diagnosing , so i always defer to those with infinitely more knowledge than I do. This should bump to the top and hopefully Get a soil less guru in here.
 
Going by your comments and you said you are using 7ml to a gallon. I never go over 5 ml per gallon even with coco.

I am using CalMag ++ w/iron and what they recommend 2.5 to 5ml per gallon. I have never exceeded 2.5 ml BUT I give it to them in every watering and feed.

If you are using R/O'ed or rain water 7 ml still sounds high and can start to cause OTHER elements to lock out.

They are very green and you can expect all new growth to have a yellowish tone to it, but will turn full green quickly.

One quick test would be cut it back to 2.5 / 5 ml and increase you nuit's.

You mentioned they are going vigorously fast. What are you FEEING THEM you never mentioned anything ??

They need a large amount of Nitrogen in veg and just my opinion the heavy amount of CalMag might be limiting the Nitrogen they need. For 7 to 10 days cut CalMag and Up the Nitrogen.

This is the very early signs ( pic 2 ) and it shows a shadowy effect compared to your last pictures.


Are you able to give them a good soaking around their root ball or are you just spray misting them. They look packed in their. And if you are only watering and feed by foliar spraying that lessens the amount of nuit's they can absorb, compared to feeding the roots.

1618098369930.png
 
Going by your comments and you said you are using 7ml to a gallon. I never go over 5 ml per gallon even with coco.

I am using CalMag ++ w/iron and what they recommend 2.5 to 5ml per gallon. I have never exceeded 2.5 ml BUT I give it to them in every watering and feed.

If you are using R/O'ed or rain water 7 ml still sounds high and can start to cause OTHER elements to lock out.

They are very green and you can expect all new growth to have a yellowish tone to it, but will turn full green quickly.

One quick test would be cut it back to 2.5 / 5 ml and increase you nuit's.

You mentioned they are going vigorously fast. What are you FEEING THEM you never mentioned anything ??

They need a large amount of Nitrogen in veg and just my opinion the heavy amount of CalMag might be limiting the Nitrogen they need. For 7 to 10 days cut CalMag and Up the Nitrogen.

This is the very early signs ( pic 2 ) and it shows a shadowy effect compared to your last pictures.


Are you able to give them a good soaking around their root ball or are you just spray misting them. They look packed in their. And if you are only watering and feed by foliar spraying that lessens the amount of nuit's they can absorb, compared to feeding the roots.

1618098369930.png
Im using flora flex at 3.5G a gallon and Folair feed once a week they good better today
 
cool and good to hear they are Happy !

Many confuse CalMag in with the required N-P-K and giving too much is sometimes worse then not having it at all. That's why the 7 ml sounded high to me.

The Nitrogen and P - K develops the entire plant / all the cells but they have a hard time moving through the plant once the roots get ahold of them.

The Calcium flows very freely through out the entire plant and those 3 essential nuit's ride along with it helping distribute them as the plant develops.

The Iron and Magnesium help develop the chlorophyll in each leaf, like the hemoglobin in our blood. Funny is every plants needs everyone of them but the amounts and combinations. Change from strain to strain as well as week to week in each plant.

Peace ...
 
how is the Humidity in there , and how is it after foliage feeding , once a week might be a bit much wetting the leaves and medium

The Plant Transpiration Process​

This is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves. The drier or the hotter the air temperature, the faster the transpiration rate from the plant. However, the moisture deficit and transpiration rate are not directly related. This means that in very dry air, the increased rate of transpiration can only go so high in the plant and then it begins to wilt. For example, if the air is extremely dry, but the growing medium has enough water, the plant may wilt and, unless the humidity increases, the plant could die.

On the other hand, if the air is very humid the plant does not take up much water from the growing medium, which also means there is little uptake of fertilizer elements. This is a problem for some elements, particularly calcium, as inadequate uptake can lead to nutrient deficiencies.

Also, low water usage from the growing medium often correlates with climbing growing medium pH, which makes micronutrients such as iron unavailable to the plant. Typically, these problems are seen in the winter and early spring, when air temperatures in the greenhouse are low and transpiration is inadequate, or during the hot, humid summer months.
 
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