problem plants ....... any ideas

[Liamp1603]

hi any ideas what the cause of this is 4th week of flower yellowing really bad tried flushing thru water to get rid of salts but as soon as i feed nutes it goes yellow ? soil is coco, canna a and b 40 ml pro xl bloom 2ml to 8 litres any ideas ????

 

[simpleleaf]

I'm not familiar with your nutrients, but that is a typical symptom of low nitrogen. Some cal mag products contain nitrogen.

Edit:
https://www.rollitup.org/t/the-official-canna-coco-nutrients-thread.225396/page-138

 

[CannaCountry]

Feed me....said the plant to the farmer.

 

[joe9000]

Im starvin.lol.

 

[5BY5LEC]

What are the PPM's of the water you are giving to it?

 

[simpleleaf]

... a typical symptom of low nitrogen.

It looks more like sulfur deficiency.

 

[hotrodharley]

hi any ideas what the cause of this is 4th week of flower yellowing really bad tried flushing thru water to get rid of salts but as soon as i feed nutes it goes yellow ? soil is coco, canna a and b 40 ml pro xl bloom 2ml to 8 litres any ideas ????

Yellowing in the middle? Phosphorus deficency. On the bottom of the plant? Needs nitrogen. Be cautious on nitrogen.

 

[rhys2018]

I use full canna range and never had any problems like this try feeding a little more..also might want to cut back the massive fan leafs.

 

[Beachwalker]

hi any ideas what the cause of this is 4th week of flower yellowing really bad tried flushing thru water to get rid of salts but as soon as i feed nutes it goes yellow ? soil is coco, canna a and b 40 ml pro xl bloom 2ml to 8 litres any ideas ????

I am not a Coco grower but I see this often in Coco (which is why I'm not a Coco grower) my guess is this:

https://www.growweedeasy.com/zinc-deficiency-cannabis

But the bigger problem is why are you locking out?, information on ph in & out and runoff ppm would help, good luck!