What deficiency is this?

[Sir Chiefs a Lot1]

Before posting this I went ahead and took a look at the plant deficiencies thread, but I can't seem to narrow down what is wrong. Here is a link to my grow journal which list everything I'm using lights, grow medium, nutes, etc.

Attached are the pics of whats going on. This has started to happen in the last 12 hours. Thanks in advance.



I don't think it could be nute burn, because I've only used nutes once and that was exactly a week ago today. I also gave them a good watering 2 day ago with plain tap water that I sat out for a day and a half to let the chlorine evaporate. And I also do not have a ph meter (I know I need one).

 

[Sir Chiefs a Lot1]

Sorry...I forgot to add the link. https://www.autoflower.org/f44/chiefs-1st-grow-northern-lights-ultraviolet-18857.html

 

[namvet25]

http://www.growweedeasy.com/potassium-deficiency-cannabis Looks like potassium def.You have to no your PH ,it's probanly off and causing nute lockout.This has to be fixed before you can fix the problem.

 

[Sir Chiefs a Lot1]

Is this from the ph being too high or too low?

 

[Justinsane]

Is this from the ph being too high or too low?

Could be both mate, thats why you really need a pen..

 

[Sir Chiefs a Lot1]

I have no idea what I'm going to do. This sucks. Right now I'm low on funds and can't afford a PH meter at this time.

 

[Waira]

Hi Chief,.... you don't need a pH pen to test soil, you can get an inexpensive soil test kit from any hardware/garden center for less than $10.. you know, the kind you add drops to the sample and read the color indicator.... However, I don't think it's a pH issue; the range for K availability is very broad, and if you were somehow out of that range, there would many more other worse signs of trouble, like a smoking cinder where your plant used to be! Also, K is usually well supplied by both soil ingrds. and ferts'.... IF it even is K deficient and not something else.... Namvet' is right about the looks of the symptoms though, but do you remember a while back we talked about how early symptoms can have overlap between causes? I know you've been conservative with your nute's, but your soil mix did have some amendments (not like you're growing in promix or something"soiless"), so,.... uhhhh,... (LOL!) if we were to bank on it not being a pH issue, then it's a nute' issue .... sorry I can't be more definite about it, mate,.. but I'd try a fert' that's low in N and higher in P and K,... treat soil and foliar spray especially (fastest route into the plants) top and under the leaves... I'll look deeper into it, and post later on, okay?

 

[Sir Chiefs a Lot1]

Thanks Waira, I'm gonna go around town and see if I can find one of those to test the pH, and I'll report back with my findings. I just hope I can get the issue fixed ASAP so that it doesn't affect the yield of the plant.

 

[Sir Chiefs a Lot1]

So this is what I found. I went everywhere, and I found this at Lowes. It's better than nothing I guess. Should this work?

 

[Sir Chiefs a Lot1]

I have no idea why it added the other pic. lol.