Spots/yellowing/dying edges

[QQNPK]

Hey what sup guys i got some spots and some yellowing and some browning edges like you can see in the pictures, its only a few leaves and its only some of the plants otherwise they look pretty healthy, i did let them go very dry 2 Times in the past 2 weeks, iv been adding alot of calcium, and bone meal. Iv been thinking about adding some magnesium, but could it be a temporary PH problem causing this?


I forgot to mention i also missed the grow stretch pretty badly and now theres a slight abundance of N in the soil could that be it?

 

[Teddybrae]

So looks like scorching from over-fert. But how old is this plant? How many weeks into flowering?


Come back ...

 

[QQNPK]

So looks like scorching from over-fert. But how old is this plant? How many weeks into flowering?


Come back ...

Yeah its 4 weeks into flower now, its probably just that most of the leaves are almost black lol, except for one pheno of the pink kush that has like small buds and very yellow leaves

i was way to late with the N into the preflower stretch i think but not sure.. got lanky as hell and stopped growing side branches, stem of one of the glookies bent like a straw in multiple places when i took them out the room lol xD

 

[QQNPK]

They dont look terrible but pretty bad lol

I took these pics 1 minute ago

 

[QQNPK]

This is parts of the glookies that snapped, i dried it for 3 days and honestly got fucked up lol xD i had smoked some really good hash 1 Day earlier so i know for sure it wasnt placebo the 4 week stuff still got me high AF

 

[Teddybrae]

I asked about how many weeks into flowering because Cannabis will drop its old leaves come flowering time. Sativa spp do it most.

Yeah, you fucked up with the fertiliser but those leaves you first posted are also showing yr plant is becoming 'senescent'. It is beginning its dying phase like when human get grey hair.


So besides a fuckup here and there your plants look ok and normal to me.


Happy smoking!

 

[TychoMonolyth]

Yeah.. it's trying to finish. Flush it really well then feed a bit for 3 or 4 weeks.

When are they supposed to finish?

 

[QQNPK]

Yeah.. it's trying to finish. Flush it really well then feed a bit for 3 or 4 weeks.

When are they supposed to finish?

Most of them i assume at like week 9 its purple punch, glookies and pink kush so 4 weeks or something left maybe

 

[TychoMonolyth]

I'd back off the food. You can't fix damaged leaves, only stop it from affecting new growth.

 

[TanzanianMagic]

Hey what sup guys i got some spots and some yellowing and some browning edges like you can see in the pictures, its only a few leaves and its only some of the plants otherwise they look pretty healthy, i did let them go very dry 2 Times in the past 2 weeks, iv been adding alot of calcium, and bone meal. Iv been thinking about adding some magnesium, but could it be a temporary PH problem causing this?

I forgot to mention i also missed the grow stretch pretty badly and now theres a slight abundance of N in the soil could that be it?

The problem I have is that there are 2 types of damage on display - one starting with the middle of the older leaves working out, and one damage on the lower part of the leafstarting outside moving in.

However, because the plant is also in flower, and because it is a mobile nutrient deficiency, and because the most damaged leaf curls upward instead of downward, I would say phosphorus deficiency/lockout.

So as long as the runoff is ok pH and EC/PPM wise, the plant most likely needs more root space (if it's not growing in hydro) and phoshporus, which in flowering is basically there to stimulate root growth, while potassium is there to thicken the stem and branches while the flowers are growing. And it's not potassium deficiency/lockout, because that starts at the edges of the leaf.

 

[QQNPK]

The problem I have is that there are 2 types of damage on display - one starting with the middle of the older leaves working out, and one damage on the lower part of the leafstarting outside moving in.

However, because the plant is also in flower, and because it is a mobile nutrient deficiency, and because the most damaged leaf curls upward instead of downward, I would say phosphorus deficiency/lockout.

So as long as the runoff is ok pH and EC/PPM wise, the plant most likely needs more root space (if it's not growing in hydro) and phoshporus, which in flowering is basically there to stimulate root growth, while potassium is there to thicken the stem and branches while the flowers are growing. And it's not potassium deficiency/lockout, because that starts at the edges of the leaf.

Yeah i think your onto something here they are in 11L pots vegged for 8 weeks 2 of them are in 18L,i have to water every 48 hours or they will be so dry, it took 74 mins to water 10 plants when i didnt water for 72 cause it was bone dry hehe
When i fed them quiet alot of pre soaked bat guano they really boomed in growth over the night but it unfortunately has 2-12N/P so they getting some already high N right now, seeing alot more spots today though so i think ill add some more calcium and maybe a little magnesium or should i just let it be? Kinda feel like doing another P dose in 1-2 waterings i did it 2 waterings ago