Huston we have a problem..Overnute? Nute deficiency?

[SNAPS]

I have a problem going on with one of my skunk#1's..

I only noticed when the hps was off, the leaf looks fine under it?!

Sorry bout the crap pis but the best i could do with a cheapo cam:(

Its starting from the tips of the leaves and working its way in. from the bottom of the plant up..

The spots/blotches look like some sort of deficiency? They are red/brown spots..

Im not sure wats going on I need help (not the mental kind either)

[Cranky]

looks like abit of the old nute burn to me mate...maybe give it a good watering(not a flush)but abit more run off than the norm and back off on the nutes for a few feeds;)

cranky

[Fillabong]

pretty long petioles in conjunction with the little necrotic spots may indicate a potassium shortage.

you know the rules dude:D What are you feeding her? how much? how often etc...

[SNAPS]

What are you feeding her? how much? how often etc...

Im feeding (per litre) 1ml Biobizz grow, 4ml biobizz bloom & 4ml biobizz topmax every watering..

Initially i thought it was nute burn, then radiant heat damage, then m*tes (shhhhh) but ive been looking at the underside of leaves and i see the spots on the underside as black/brown..almost like there going dead:eek:

I was searching through loads of nutrient deficiency guides and came to the same conclusion filla;)

heres how i come to my conclusion, also i read somewhere that K deficiency mainly affects the "tall" plants in your grow.. this skunk#1 is one of the tallest i have:o

Older leaves are initially chlorotic but soon develop dark necrotic lesions
(dead tissue). First apparent on the tips and margins of the leaves. Stem and branches may become weak and easily broken, the plant may also stretch. The plant will become susceptible to disease and toxicity. In addition to appearing to look like iron deficiency, the tips of the leaves curl and the edges burn and die.
Potassium - Too much sodium (Na) displaces K, causing a K deficiency. Sources of high salinity are: baking soda (sodium bicarbonate "pH-up"), too much manure, and the use of water-softening filters (which should not be used). If the problem is Na, flush the soil. K can get locked up from too much Ca or ammonium nitrogen, and possibly cold weather.



Thing is im feeding her the maximum rec dosage..should i increase it?:eek:

edit:

I just read the last bit to what i copied and pasted.. "cold weather" hmmm the temps do drop when its lights out and i havent been monitoring them:(


*scratches head*

[LdyLunatic]

i had some look like that once.....turned out i had bad genetics....i do hope thats NOT what is wrong with yours :(

but the temp can definitely be a factor....should try and see what your temps are ..maybe a small heater (with a thermostat so its not running all the time and cooking your babies) could be used...be certain to get one that doesn't emit light.....come ceramic ones emit a lot of light off the heater coils

[Xenon]

I see K def. like Filla

I don't think that there is any toxicity symptoms as the tips are not burnt and the leaves are not overly dark in color. That splotchy chlorosis is usually indicative of K def. (once ya know its a mobile nute [npk]) and then Filla made the grea observation about the long petioles.

Instead of using more biobizz, can you obtain a nutrient that is K specific...?


I personally like the seaweed family of nutes when it comes to providing liquid K because they contain lots of beneficials that promote a healthy root system. Kelp and seaweed are great soil additives beyond their nutritional value.



Looks like we tend to agree on most things nomatter what board the discussion is on eh Filla? :p

haha....I just realized that this thread was from 3 weeks ago. My bad. :rolleyes:

:Peace: