I have no idea...

[Waira]

Sorry man, but I have my doubts, though I get what you're saying... from what I've seen, such direct contact is sometimes the cause for fungal/bacterial attack though,... these symptoms don't indicate that,...
-- So, you're saying the minimal actual contact between the leaf underside and pellet, and those associated stomata in the time that they are even open, are enough to bring in such overwhelming amounts of P that it could cause toxicity in this short amount of time? Not all look to be in contact in the previous page's pics at least; only Trip can tell us if the 5 fingered leaves were dragging as well at the time... also wouldn't the pellets need to be moisture saturated enough constantly to the point of leaching accumulated P? Besides, it's veg formula time, so how much P can there be going in at this early stage?
--- my understanding is that P defc. symptoms don't hit the entire plant; it's mobile, so the plant can translocate it from lower older growth, where symptoms typically will show first,...
--- I see zero signs of toxicity otherwise, no tip burn or even yellowing,... these broad patches of dead interveinal tissue are classic symptoms of defc., so are the darker burnished look to some of the leaves,.. And yes, I see the petioles aren't turning purple,.. not always a good clinical diagnostic clue that I've seen,...

-- right Trip, time will tell,... I hope it's as simple as that!

 

[tripaholic88]

Sorry man, but I have my doubts, though I get what you're saying... from what I've seen, such direct contact is sometimes the cause for fungal/bacterial attack though,... these symptoms don't indicate that,...
-- So, you're saying the minimal actual contact between the leaf underside and pellet, and those associated stomata in the time that they are even open, are enough to bring in such overwhelming amounts of P that it could cause toxicity in this short amount of time? Not all look to be in contact in the previous page's pics at least; only Trip can tell us if the 5 fingered leaves were dragging as well at the time... also wouldn't the pellets need to be moisture saturated enough constantly to the point of leaching accumulated P? Besides, it's veg formula time, so how much P can there be going in at this early stage?
--- my understanding is that P defc. symptoms don't hit the entire plant; it's mobile, so the plant can translocate it from lower older growth, where symptoms typically will show first,...
--- I see zero signs of toxicity otherwise, no tip burn or even yellowing,... these broad patches of dead interveinal tissue are classic symptoms of defc., so are the darker burnished look to some of the leaves,.. And yes, I see the petioles aren't turning purple,.. not always a good clinical diagnostic clue that I've seen,...

-- right Trip, time will tell,... I hope it's as simple as that!

Tha k you for the explanation waira and I'm monitoring her pH and it goes from 6.2 and rises to 6.4 rather fas so I bet she is just munching up them nutes. also the mammoth P does cause more p uptake so maybe that's why she is really hungry? and the higher up leaves were not touching the hydroton

 

[Waira]

..pH looks fine mate, never was that badly out anyway,... as for the Mammoth P, I don't think so, as they do recommend using it pretty much right away,.. I don't know enough about this products microbes and interactions with P, only that it helps facilitate uptake, and cycling within the medium,... I don't think the bacteria will uptake so much and hold onto it long enough to literally compete with the plant for it..?

 

[RemoNutrients]

Sorry man, but I have my doubts, though I get what you're saying... from what I've seen, such direct contact is sometimes the cause for fungal/bacterial attack though,... these symptoms don't indicate that,...
-- So, you're saying the minimal actual contact between the leaf underside and pellet, and those associated stomata in the time that they are even open, are enough to bring in such overwhelming amounts of P that it could cause toxicity in this short amount of time? Not all look to be in contact in the previous page's pics at least; only Trip can tell us if the 5 fingered leaves were dragging as well at the time... also wouldn't the pellets need to be moisture saturated enough constantly to the point of leaching accumulated P? Besides, it's veg formula time, so how much P can there be going in at this early stage?
--- my understanding is that P defc. symptoms don't hit the entire plant; it's mobile, so the plant can translocate it from lower older growth, where symptoms typically will show first,...
--- I see zero signs of toxicity otherwise, no tip burn or even yellowing,... these broad patches of dead interveinal tissue are classic symptoms of defc., so are the darker burnished look to some of the leaves,.. And yes, I see the petioles aren't turning purple,.. not always a good clinical diagnostic clue that I've seen,...

-- right Trip, time will tell,... I hope it's as simple as that!

You very well could be right...Sometimes making a diagnosis is tough because a lot of symptoms for different problems look similar. I don't have experience with Mammoth P, only hydroton (which I'm not a fan of). If it's a cal/mag deficiency, you'll need to increase your doses of magnifical and monitoring your pH is always a must.

Good luck Trip. Hopefully things turn around.

Joel

 

[tripaholic88]

..pH looks fine mate, never was that badly out anyway,... as for the Mammoth P, I don't think so, as they do recommend using it pretty much right away,.. I don't know enough about this products microbes and interactions with P, only that it helps facilitate uptake, and cycling within the medium,... I don't think the bacteria will uptake so much and hold onto it long enough to literally compete with the plant for it..?

i was actually leaning toward the mammoth feeding the plant so much P that it lead to tox but i think it was just some light lockout that i could have corrected faster... at forst i was thinking dome type of root rot

 

[Waira]

..no, the Mammoth 'crobes aren't forcing it in,.. but some nutes are taken up by the plant whether it needs it or not,.. N is another perfect example of that.. the plant can store only so much excess before it becomes toxic internally for them,...

 

[tripaholic88]

I believe we are back on track brotha!

..no, the Mammoth 'crobes aren't forcing it in,.. but some nutes are taken up by the plant whether it needs it or not,.. N is another perfect example of that.. the plant can store only so much excess before it becomes toxic internally for them,...