Thematt202
Member
This is my fourth CFL closet grow and as ever i'm using autos. The larger plant is an Automatic Haze (around 5 - 6 weeks old) and the smaller a Blue Mystic (about 4 - 5). The plants are kept in a large cupboard under a 300watt CFL and reflector with two medium fans for ventilation. I am pretty sure that the problem is not due to the setup as my other grows have been under the exact same conditions and have always yielded around half an ounce per plant (dry).
As you can see, the bottom leaves are yellowing and eventually dying. This started about a week ago on the very lowest leaves and is now working upwards towards the top of the plants. I am feeding them with Canna Flores, around 5-10ml diluted in 2 litres of water every week or so. I also water every 3 or 4 days inbetween when the soil feels dry below the surface.
Is this a nutrient problem? If so, too little or too much? I've heard of plants taking nitrogen from expendable fan leaves to make up for difficiencies - could this be the case here? I'm sure I fed my last plants a little more often but didn't want to burn them so have kinda held back a bit this time!
Help!!![IMG_0254.jpg](/data/attachments/1077/1077242-e943a884ddc3655283499283313742c8.jpg)
![IMG_0257.jpg](/data/attachments/1077/1077241-f592c87fcbfe56b357820286d4e3e181.jpg)
![IMG_0253.jpg](/data/attachments/1077/1077243-d5c40c87f480527838b2d989001c9cce.jpg)
![IMG_0256.jpg](/data/attachments/1077/1077244-99087a5aaaab2b269fc5271abce040db.jpg)
![IMG_0255.jpg](/data/attachments/1077/1077245-5b47d5e0fbdcff71fa1702a747c4eb9c.jpg)
![IMG_0258.jpg](/data/attachments/1077/1077246-1784ee6181f99fa8adc2d89641e6664e.jpg)
As you can see, the bottom leaves are yellowing and eventually dying. This started about a week ago on the very lowest leaves and is now working upwards towards the top of the plants. I am feeding them with Canna Flores, around 5-10ml diluted in 2 litres of water every week or so. I also water every 3 or 4 days inbetween when the soil feels dry below the surface.
Is this a nutrient problem? If so, too little or too much? I've heard of plants taking nitrogen from expendable fan leaves to make up for difficiencies - could this be the case here? I'm sure I fed my last plants a little more often but didn't want to burn them so have kinda held back a bit this time!
Help!!
![IMG_0254.jpg](/data/attachments/1077/1077242-e943a884ddc3655283499283313742c8.jpg)
![IMG_0257.jpg](/data/attachments/1077/1077241-f592c87fcbfe56b357820286d4e3e181.jpg)
![IMG_0253.jpg](/data/attachments/1077/1077243-d5c40c87f480527838b2d989001c9cce.jpg)
![IMG_0256.jpg](/data/attachments/1077/1077244-99087a5aaaab2b269fc5271abce040db.jpg)
![IMG_0255.jpg](/data/attachments/1077/1077245-5b47d5e0fbdcff71fa1702a747c4eb9c.jpg)
![IMG_0258.jpg](/data/attachments/1077/1077246-1784ee6181f99fa8adc2d89641e6664e.jpg)