Big Bud has Big problems

[kenned]

hello..

So, I'm growing a big Bud in a DWC.
The bucket is 12 litre,
Fertelizer is GHE, one part bloom
The air pump has 2 exits, each blowing 90 liters pr. hour.
Light is 250w hps.
pH is normally between 5,8-6,2
µS is between 1500-1800


The plant has been in flower for some weeks, in where in went really well the first few weeks.
Suddenly, after a few weeks, the plant just startet to yellow its leaves and loose them...

Pics:

There has been some problems with the pump, it hasn't been on all the time, could drowned roots be the problem?
The roots are fine white, by the way.

What could it be??

thanks, kenned

 

[Guest]

Nice Satvia Looks hungry (maybe too less N in veg/ no phos)...if the roots are perfectly healthy... but I am a soil grower so wait for more replies before you do anything...

 

[Guest]

looks hungry, if you can next time you add bloom ferts try to add some nitrogen at a low concentration

 

[Core]

did you change nutrients in the cycle?....i also have that when i change from canna vega 2 canna flores...thats why i use vega untill the 4th week (with higher N)and then change 2 floweringnutes...

 

[kenned]

After it was cloned, it went 1 week in veg, and then into flower.
I used the same nutrients all the way, no veg-nutes..

rkrone said the plant need nitrogen, so I added a little of my urine, as I have heard it is a good way to nitrogen...

 

[Guest]

how much urine and at what dilution.
always remember with pee its 1pee : 10water/solution

also this may have to be done several times to ensure N levels wont drop too low and cause this again

 

[Worm Eat Worm]

sativa's like to stretch in flowering for a couple/few weeks. i like to use a all purpose fertalizer during this phase with sativas then shift to P and K heavy feedings. I've heard using human urine or domestic animals is bad i'd just get a normal all purpose fert or possible a micro nutrient fert with smaller amounts of N.

I also notice that you have some tip burn, maybe you are trying to over compensate, i wouldnt do that back off a little and keep your ph in check.

 

[kenned]

Hmm, I just added a glass of urine, for about 6 litres of water.
But next time I'm gonna write down how much I use, so that I can control it.

I'm gonna add a little more water to mix it up a bit...

 

[Guest]

lol... this has gotten disaster written all over it lol... just make sure you flush though plants thouroughly

 

[kenned]

haha, easy now, it cant be htat bad...
can it?