Plant issues

[Guest]

So for the past 10 days or so my plants growth has been almost non existant, although it has impoved in the past 2 days since i added more air circulation and dropped the temps down to 81 with lights on.

Theres 2 plants, only one of them is having what seems to be a defiency but im not sure which, seeing that I dont know much about it and comparing the pictures I would guess a potassium issue. but ide rather have second opinion.

these 2 plants are on day 35 of flowering. any help? thanks.

Only the tops are like this, and have been like this for around 10 days as well im guessing from the heat stress?

 

[sproutco]

If your tops are like this = calcium deficiency but could be caused by excess ammonia or urea nitrogen. Check fert label for type of nitrogen your using (better be nitrate!) and if you have adequate calcium (and magnesium).

 

[supafly]

Sportco i think you are losing your mind!

 

[Guest]

If your tops are like this = calcium deficiency but could be caused by excess ammonia or urea nitrogen. Check fert label for type of nitrogen your using (better be nitrate!) and if you have adequate calcium (and magnesium).

total nitrogen 6.0%
ammoniacal nitrogen 2.9%
nitrate 3.1%

whats that mean ifi have both =P? is that different ways they dissolve or something?

 

[Brother_Monk]

Only the tops are like this, and have been like this for around 10 days as well im guessing from the heat stress?

Looks like a nice sativa ya got going there. What strain? From the claw-like leaves I'm guessing too much Nitrogen ferting. What are ya feeding them? How often? Are they in soil or hydro, I can't tell from the picture? With sativas, it's too easy to overfeed. I go with a water, water, feed...and sometimes a water, water, water, feed schedule if they are really picky. They like to get really dry between waterings too so it's easy to overwater as well.

 

[dre86]

I have EXACTLY the same with my Haze Special. The top (new growth) leaves are curled up inwards. I think it is not from the heat

 

[sproutco]

total nitrogen 6.0%
ammoniacal nitrogen 2.9%
nitrate 3.1%

whats that mean ifi have both =P? is that different ways they dissolve or something?

Its not bad. Over 50% of the nitrogen being ammonia is not good. More nitrate is better. Where did the leaves with the burned margins come from on the plant.

 

[VanGrow]

What strain is that?

 

[Verite]

Too funny, just like clockwork sproutco is all too ready to call out some trace element deficiency before ever finding out what ferts theyre using how often they are using them. What their ph and medium is and if they are using tap water or distilled/RO. We can only hope one of these days he gets it right.

 

[Guest]

the strain is supposed to be afghani from nirvana. but after they grew over 7 feet tall and showed almost no indica type leaves I would assume that it isnt afghani. not sure what it is. since the description on the package said a short heavy indica plant.

I fertilize 2x a week. soil. the pH of the run off is 6.6 and im using tap water.

 

[Brother_Monk]

Well you got screwed on the genetics obviously. That is definately a sat. How big are your pots? Are they in flower? If so, how long? Ph seems ok, and tap water is good because it has Cal. and Mg. I would suggest backing off the ferts and let the soil get pretty dry before watering again. Feed after 2 or three waterings. Most sativa plants don't feed heavy at all. Unless it's a polyhybrid or something. Hope this helps bro.

edit: Sorry, I see 35 days flowering. Can you check the rootzone? I'm just curious to see if they are rootbound.

Peace
BM

 

[Verite]

I fertilize 2x a week.

With what brand of ferts?

 

[Guest]

Fox farm grow big for veg, and big bloom/tiger bloom. One is in a 5 gallon pot. the one having the issues is in a 10 gallon pot. im fairly certain they are not rootbound but ill have to recheck when lights come on. after reading another thread in the growers forum i "think" it may be the nutes have gone bad. because they are in the adjacent room to the flowering closet. which reaches temps of 83-85. when the AC doesnt kick in the room can sometimes get up to 87-90.

 

[Guest]

something I just remembered, i thought it would be good to mention that this all started around the same time my plants was being attacked by aphids. I sprayed them down with an organic pest killer that I always used with no problems. I do not think it was the organic spray i used. but could it be related to the bugs?

 

[MTF-Sandman]

What are the chances of there being a light leak in there? Those leaves look like reveg leaves IMO...

 

[Verite]

Could be that or one of those severe sativas that puts those monoleafs out along the 'colas' in flower. It could also be one of those sativas that are sensitive to N in flowering. If it is that Tigerbloom is going to have a bit too much N for that kind of sativa. Did the leaf edge burn happen after the spraying?

 

[VanGrow]

yea sandman I was thinking wow those are some reveg leaves or some fu*ked up strain.....i grew a seed from some plum kush i got ( a bag seed) once.....saw it all the way through at the end i got that with some deformed buds....i had many plants next to it...they were fine.... Conclusion= Some plants just suck.....

 

[Guest]

the leaf edge burn happened a few days after the spraying when i first started to use the big bloom/tiger bloom. light leak nope, none at all.

 

[sproutco]

Grow big as far as I know contains no calcium. So, your plant has been progressively getting more and more deficient of calcium. Big boosts of potassium or magnesium could make this condition worse. Might add cal mag plus 7.5 ml per gallon to your regular ferts if they don't contain calcium. Millenium cal mag max 5 ml per gallon could also be used but requires the addition of 1/8 teaspoon epsom salts. Another alternative is using 1/4 teaspoon of both powdered gypsum and epsom salts per gallon of water along with the regular fert. Every third fert with dol. lime and everytime with no lime or levels are low which they may be. Lower ammonia/urea in your fert would be better because this interferes with calcium function within the plant.

 

[Guest]

heres some updated pictures from today, i should add that those wierd looking reveg leaves. they came out like that. when they were first started growing, they were curled up in a ball next to the branch. they were very very dark green color and didnt come out like normal leaves.

the yellowing has moved mostly to the bottom branches, its no longer at the top branches.


you can probably see the difference of health/color

the plant on top/behind is the one having issues.

bonus pic ;x