i need help to identify this problem

[cesarhorta]

i don´t know for sure what´s happen with these plants. i think i burn a little with ferts, or is this sign´s of overwatering. please help.
p.s. i water them every 4 days

cesarhorta Reviewed by cesarhorta on 09-11-2007. i need help to identify this problem i don´t know for sure what´s happen with these plants. i think i burn a little with ferts, or is this sign´s of overwatering. please help. p.s. i water them every 4 days Rating: 5

[Weedhound]

Revised: The Complete Guide To Sick Plants,pH and Pest Troubles - PlanetGanja.com

I'd start very first by checking your soil ph....

[whatsthatsmell]

when you are watering, do you just add water to the plant or do you flush the plant? It looks like a pH thing to me, if it was nute's you would see the tips of the fan leaf curl'd down and brown/dried..... there are couple of testers out there that will let you test the pH of your soil and see what nute's you have there as well. If you havent flushed your plants, i would do that right away...

[Ganja Guerrilla]

you have a calcium & nitrogen def

complete a soil runoff PH test.......
with PH corrected water (6.5-6.8PH ) pour enough water in the pots so the water runs out the bottom of the pot ...collect & test the PH of this runoff water....

If the PH reading is out of optimum range 6.5-6.8 PH, you need to flush your plant.
Flush with PH corrected water, till in optimum PH range, 3 times the volume of the pots is the rule of thumb but may require much more flushing if the rootball is thick & sour
EG: 1 gal pot = 3 gal. flush

add 1/2 strength nutes to the last gallon of the flush.

[stinkyattic]

^^^^ Right on.
N= you can see the paleness of the leaves.
Ca= you can see the wide band of necrosis along the leaf margins.
Flushing will help you. Be certain that your nutes contain secondary compounds, not just NPK.

[cesarhorta]

i flush them, but i dont want to flush that much because im afraid to overwater. the pots stay very heavy. i use ferts with all compounds and NPK 6-5-6.

[whatsthatsmell]

someone can correct me if i am wrong, but flushing every couple weeks is a good thing and you should do it right away, you will see a difference (personal experience on that one) and then add a nute solution (just like stinky mentioned) that has secondary nutes, you can see the secondary nutes on the box of fert that you use.

[PharmaCan]

i flush them, but i dont want to flush that much because im afraid to overwater. the pots stay very heavy. i use ferts with all compounds and NPK 6-5-6.

At this point, it's a little more important what the plants want than it is what you want!

PC imp:

[cesarhorta]

ok so i flush the plants and the pots stay very heavy. now i am pray to not overwater them.
my soil have little drainage and holds more water and my fear is because of that. right now i use tap water with ph 6.8, and soil ph is 7.0, i think this is fine. i put them in 12 hour dark period with one fan blowing on them.

[whatsthatsmell]

cannabis likes/needs airy medium, if your having drainage issues you could be in the risk of root rot as well, keep that in mind, you might have to either drill some holes in the medium or if you have a cap on the bottom of the pot that holds water to take it off and let the water drain, even if it is a very very slow drain.