1) too heavy on the nutes.
2) not enough light, and too far away coz it's stretching out too much.
3) you need "daylight" cfl bulbs to flower with that are in the 6500k range. "cool white" bulbs in the 3000k range aren't what the plant prefers to flower in.
4) the other comments about light placement and choice of cannabis strains are waaaay important factors too....take their advice, it's dead-on!!!
5) if it were me, I'd toss it out and start another one coz it's already stretched out, stunted, nute burned, and doesn't have a very good future...
6) plan out the environment better next time with closer, proper bandwidth cfl's and chill out on the nutes and watering schedule.
7) remember next time.....she's a WEED and doesn't need to be over-coddled.....when they are in soil I generally don't add nutes unless it looks like it's deficient on something. Just water in between feedings, and water only when it needs it.
after all, we are growing the cannabis plant for it's beautiful gifts, Delta-9 THC and the other active cannabinols. Scientific proof says the only things that increase the THC content of the cannabis plant are sunlight, manganese, and STRESS.
I emphasize STRESS because in an indoor growing environment, we are only able to MIMIC sunlight, so THAT affects potency.
We are only able to ADD the needed manganese and kinda GUESS at it when doing indoor grows in soil. The plant doesn't have it freely available in rich soil like it would have in a natural outdoor environment....so THAT affects potency.
Again, we are only able to MIMIC the conditions cannabis prefers when growing her in an indoor soil environment....
One thing we CAN control (not just mimic!) is STRESS!!!
We can make those girls WORK FOR IT so they don't get fat and lazy, and lay off on the unnecessarily heavy and hot food/watering schedule.
We can do supercropping on the branches to induce stress, and scarring, and the result is a "knuckle" that forms with a larger capillary system than before.
That means more nutrient gets to those branches, and the stress reaction to the supercropping stimulates "recovery" growth.
We can do low stress training to make the flowering branches closer to the cfl bulbs (like an INCH if they can take it!) and that increases the "individual" intake of available light to the flowering branches only.... After all, we aren't trying to grow big leaves, we're trying to grow big BUDS!
Let the cfl and the bud branches hog up that light, and ignore the big fan leaves. Let the plant tap into it's own leaves and use up it's reserves. Leave only a few for the plant to have a few good fan leaves to gather excess light and keep the metabolism up.... The resulting stress will increase potency every time.
For flowering, you need to get 3,000K range "cool white" cfl's. for the vegetation (growth) stage you need 6500K "daylight" range cfl's. Keep those lights as close as you can (1-2 inches away) and don't be skimpy.....give each bud branch it's own cfl for optimum potency and size.
About 2 weeks before I harvest a potted soil plant I stop feeding it nutes, and give it a dose of blackstrap molasses once.
(the low sulfur stuff only....1 tsp. in a gallon of water is fine) it's got iron and sugar the plant can eat if it needs it. It also has manganese, which BUDS LOVE!
After that I try not to water them ever again....
Forcing the ladies to go into "survival mode" by stopping the feeding/watering schedule causes the plants reproductive organ (the buds) to get PRIORITY.
When she thinks she's gonna die, she tries to do ANYTHING to reproduce....that includes INCREASING potency, aroma and resin production to entice pollenating critters and protect the reproductive organ (the buds) from frost and destructive insects.
SUNLIGHT
MAGNESIUM
STRESS!!!....STRESS!!! STRESS!!!
Try to mimic and re-create those conditions as best as you can for the flowering cycle and you'll have better potency.
Of course by "stress" I don't mean a wilted, half dead beyond-recovery condition...give them love.....but TOUGH LOVE!!!
And they will reward you by turning out strong-willed independent ladies with potency to remember them by