whats wrong with these plants

[spacemyface]

Hello all,

My plants are lookin kinda sick...
6 weeks
soil-ffof with perlite added.
air cooled 400wmh
temps average 76-80f
they have had 1 very small 1/4 dose of ffgb a 2 weeks ago, and the last watering was just ph'ed tap water.
soil ph run off between 6.5 and 7, i'm using the dropper ph checker thingy.
anyone have any ideas?

[Weedhound]

If you ph is good i'm wondering if they need more nutes....they're pretty big for 1/4 strength. I grow hydro so I'm not sure....there are good soil growers on this site who should be able to help you.

Good luck

[4x5]

They do look a little pale to me, and for six weeks under a 400 they should be nearing 2 feet in height, I'd say keep doin' what you're doin'; just up the nutes (mainly nitrogen) and drop the light some, they'll take off like rockets.

[spacemyface]

Thanks for the replies!
Do you notice any kind of trace element def.? I lookin at the leaf structure and they seem awfully spiny,or notchy,and kinda have a canoe shape?? Hard to describe.

[hydroislife]

Go fox farm's website and there recipe for there soil . . you need to be adding big bloom too. . sounds funny considering you are still in a veg cycle but there a great micro nuts in the big bloom . . . check the website or just ask and ill post it.. . .

green leaves

[WynOSmokeZ]

Same exact problem with my outdoor grow. I don't know what to do. Have you resolved this?

[king cola]

Have you got plenty of air movement (i.e. a fan), i had similar probs when i grew once ( plants that were way smaller than they should be at that age) i found that plenty of fresh air (not jus air from the growroom itself, but air pumped in and over the plants from outside the room) seemed to solve the prob. good luck though!!

[xxxhazexxx]

im a hydro man but thet look like they need full strengh nutes now ,you need to talk to surreys princess or stinkyattic they are top noch soil growers good luck:thumbsup:

[surreys princess]

nitrogen nitrogen nitrogen......they look hungry...

they are very light in colour, and i wonder what your lighting is as well....

nice temps..i find 78 is ideal, and you are right in there...

i would suggest, in my opinion, a ppm pen......i find they work very well along with the ph tester kits...

good luck, and let us know what happens after you give them some nutes, and if there are any other problems...

princess

[spacemyface]

Thank you for all your replies!
Yes, I gave them a half dose of Grow big 2 days ago, and they love it!
My lighting is an aircooled 400w mh, so I think they get enough light. But it is starting to wrm up here weather wise, so day time temps in cab. get to 83-84degrees f.
Need advice, what feeding schedule would you recommend? I to am thinking a full dose next time round, but should i give them a watering in between feedings? Or will the plant tell me what they need?
Oh, I also started lst'ing them last night and some of them are starting to smell:)
Peace

[xxxhazexxx]

princess r u here

[surreys princess]

oohhhhhhhhh.....i <3 mh... :)

i am sorry, i cant say much about your lighting, i dont know how much space you have or how many plants....

i would just keep feeding every other day.....check your ph and adjust to what it needs continually, it can change from meal to meal for the plants...why would you water inbetween? every other day should be sufficient i would think..esp with your temps.........but that is just me, and how i grow.....everyone does it different, and you will find over time what works best for you...i hope this has helped some....good luck....

[spacemyface]

Thanks Princess, I thought I read somewhere that you should alternate water and feedings to avoid salt build up in the soil??
I have 8 plants grown from seed in a cabinet aprox. 3.5' X 2.d X 5' tall.

[Lanietheberner]

unless you have a long term commitment such as a older momma, and you also have water that is very high in salt content (all municpal water systems use some type of treatment that removes the salt - R.O, resin beds, etc...).

Most growers (99.999%) will never see any issues with salinity as it occurs here in California's central Valley when the apply irrigation water over a number of years - 30-50+ of water with crappy water.

Most our us change soil every grow cycle, so I really doubt that this could be a problem. What central valley farmers to here is to apply large amounts of water which drives the salt deep down into the soil below the root zone. There really is no viable way of removing the salt, so they just live with it.:wtf:

[PharmaCan]

Most growers (99.999%) will never see any issues with salinity as it occurs here in California's central Valley when the apply irrigation water over a number of years - 30-50+ of water with crappy water.



In actuality, the Central valley is much more complex. The soil there is so bad that in many places it is covered with a layer of salt that cracks when you walk on it, much like a thin layer of ice cracking under your feet.

The Central Valley is also the most productive agricultural area in the world.

In order to farm land in the Central Valley, one has to install rows of leach lines about 4'-5' underground. The land is then diked on all four sides and flooded. The water rinses all the bad stuff from the soil, into the leach lines and out and away. The land is then good for growing.

The water in the Central Valley is actually quite good.

[Lanietheberner]

I was in the engineering department at Cal Poly SLO and we did numerous projects to work on these issues. The only problem with putting the leach lines in the field that that it's a very expensive project, then what do you do with the drain water? In many area's it has soooo much salitinity as metals that it cannot be discharged into regular waterways so then you got another problem.... There's no easy cheap fix for these issues.

Putting this water into central ponds for evaporation is another nightmare....... Maybe we could put it into mason jars and send it to the adminstration for them to wash their cars with? Now there's an idea!!!!! LOL!!! I could see Chaney out there with Mr. Miagi - "ok Mr. Vice President, it's wax on with the right hand and wax off with the left hand....."

[stinkyattic]

Salinity like, ocean bed salt/saltwater inclusion into wells/ road salt runoff, is rarely a problem for growers except in very specific areas.

However, 'salts' are not just Sodium chloride, Calcium chloride, or Calcium-Magnesium Acetate (all common road deicers that you will have to contend with if you grow near a highway that gets salted).

Salt buildup can be a problem in pots in as little as a few weeks if you are:

-Feeding aggressively
-Using pre-ferted soil
-Your tap water has an unusually high mineral content
-Using shitty fertilizer that does not contain adequate chelating agents
-Any combination of the above

Just one more reason to use good quality fertilizer! And flush at the first sign of combo burn/def = LOCK OUT!!!