I noticed my outdoor autoflowers are showing the first sign of a nitrogen overdose after I fed a 1/4 strength dose of fox farm grow big 4 days ago. Im almost positive it's nitrogen/or nutrient overdose because I watered 6 plants with it at the same time and only the 2 younger ones are showing it.They're in 3 gallon pots and are still kinda wet, but I want to flush to get that fertilizer out of there before it gets worse. Should I flush now or let it dry out like I normally would? I'd say it probably has 24 hours left before its ready for a watering.
first sign of nitrogen toxicity, flush now or wait to dry out?
- Thread starter prosinz
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ganga gurl420
Well-Known Member
If its an auto in 27 days in you should already be seeing flowering start. Why are you giving it something high in nitrogen anyways?
I was hoping to squeeze in one dose of vegging nutes before the plants started flowering to push a little more size out of em. The older ones just at the end of veg seemed to like it and gained size rapidly afterwards. But I think the younger ones still had a little too much in the soil still.
I ended up noticing this stuff this morning, and gave a thorough watering with plain water and the crinkly looking leaf looks like it has improved over the day
Appalachianhills
Well-Known Member
Leaves don't seem dark enough for n tox
Gquebed
Well-Known Member
With overwatering, first it is leaf tips that curl or droop. Then the rest of the leaf gradually. Also, a sure sign is wrinkling leaves. Then what comes is a kind of "blackening" of the leaves, for lack of a better word.
Classic signs of overwatering. You got em. To go straight for nitro tox based leaf tip curl is premature, particularly when the plant isnt showing the first sign of it, which the deep deep green colour...
Sorry dude but you are wrong, the soil dries out sufficiently between waterings. They are on the same water schedule as their older counterparts were when they were that age which are showing nothing (that adds up to nitro tox on a younger plant). If it was overwatering, my thourough watering when I didnt even need it wouldn't be improving my conditions like it is already.
Now getting back to subject, it seems like it was a good idea for me to do the early watering even though I wasn't dry yet. Leaf tip curling has stopped and even improved a little. Plants are flourishing and improving with the early watering
Rhizosphere
Well-Known Member
they look healthy. they are not super old plants so they for sure dont need a lot of nutrients i really like useing fish hydrolysate with NPK of 6 2 2 when there that size every two weeks or so. they are getting to be a good size for those pots though i would get them in something big here in the next few weeks! but for sure nice plants!!
Dr. Who
Well-Known Member
You did not have any way, shape, or form of N tox........
Than what is it because it can't be overwatering. Some other nutrient overload?? I checked my soil with one of those probes and the PH is 6.0-6.3 and my run off is at 6.5
Rhizosphere
Well-Known Member
some plants are picky and dont like some nutrient lines
Dr. Who
Well-Known Member
What is "what"?
I don't really see anything out of wack!
You're overthinking this! Take a breath! Now have a Beer or a nice Bourbon and a fine cigar and have seat and relax!
I will say that if your in soil. You don't "need" to pH the in-going if your keeping the bio's active.....IF you feel you must - soil pH the in-going to 6.5 in veg and 6.7 in bloom and FORGET about soil pH!!!
Run off pH is simply the pH of the run off and is NOT in ANY way the pH of the soil!!!
If your in Coco? Keep doing what your doing and still forget about run off pH!
That second pic of the 2 little leaf tips curling up a "tad" is meaningless!
dickiefickle
Active Member
yup ,,no pH ing in soil ...ever