Forum Shop Market
Seeds FAQ Tools
SEE OUR MARIJUANA SEED GUIDE FOR THE BEST STRAINS
Looking for Legal Marijuana look no further!
Go Back   Marijuana Growing > The Grow Room > Marijuana Plant Problems


Reply
 
LinkBack Thread Tools Display Modes
  #1    
Old 07-10-2007, 11:16 AM
GreenGro's Avatar
Ganja Smoker
Pot Head
GreenGro is offline
 
Join Date: Jan 2007
Posts: 238
GreenGro is on a distinguished road
Points: 2,549, Level: 7 Points: 2,549, Level: 7 Points: 2,549, Level: 7
Activity: 0% Activity: 0% Activity: 0%
Default Can anyone ID this problem please - is it mag deficiency?
Can anyone recognise this problem please? not sure if it's magnesium deficiency??
Attached Images
File Type: jpg From camera phone 070.JPG (43.1 KB, 141 views)
File Type: jpg From camera phone 071.JPG (52.5 KB, 150 views)
File Type: jpg From camera phone 072.JPG (52.0 KB, 109 views)
Reply With Quote
  #2    
Old 07-10-2007, 11:20 AM
GraF's Avatar
Teaching How To Roll
Mr. Ganja
GraF is offline
 
Join Date: Jan 2007
Posts: 1,404
GraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud ofGraF has much to be proud of
Points: 8,327, Level: 13 Points: 8,327, Level: 13 Points: 8,327, Level: 13
Activity: 0% Activity: 0% Activity: 0%
looks burned to me- I could be wrong but we could give a better answer if you give us some details on your soil and nutrients
Reply With Quote
  #3    
Old 07-10-2007, 11:25 AM
GreenGro's Avatar
Ganja Smoker
Pot Head
GreenGro is offline
 
Join Date: Jan 2007
Posts: 238
GreenGro is on a distinguished road
Points: 2,549, Level: 7 Points: 2,549, Level: 7 Points: 2,549, Level: 7
Activity: 0% Activity: 0% Activity: 0%
Quote:
Originally Posted by GraF View Post
looks burned to me- I could be wrong but we could give a better answer if you give us some details on your soil and nutrients
Canna nutes in rockwool and clay pebbles - it seemed to start after being in the same nute mix for about a week and a half - it was dumped after 2 weeks and the nute mix increased to EC 1.2 or about 600ppm as per the bottle.

2 Days before it started happening cheap CO2 was added delivered under the leaves with straws from a big bottle dunno if that could have any bearing?

Also the leaves had been curling up along the sides for some time before this, that with the yellow tips made me think it could be mag. def.

thanks for the help

Last edited by GreenGro; 07-10-2007 at 12:02 PM..
Reply With Quote
  #4    
Old 07-10-2007, 01:15 PM
SHOOT2KILL66's Avatar
The Gardener
Mr. Ganja
SHOOT2KILL66 is offline
 
Join Date: Jul 2007
Location: Planet Wonk
Posts: 1,058
SHOOT2KILL66 will become famous soon enoughSHOOT2KILL66 will become famous soon enough
Points: 3,996, Level: 9 Points: 3,996, Level: 9 Points: 3,996, Level: 9
Activity: 0% Activity: 0% Activity: 0%
If you ph check your water then its nutrient burn
__________________
Global warming gives you wings ..Bring on the next evolution
Reply With Quote
  #5    
Old 07-10-2007, 01:25 PM
GreenGro's Avatar
Ganja Smoker
Pot Head
GreenGro is offline
 
Join Date: Jan 2007
Posts: 238
GreenGro is on a distinguished road
Points: 2,549, Level: 7 Points: 2,549, Level: 7 Points: 2,549, Level: 7
Activity: 0% Activity: 0% Activity: 0%
Hi thanks

PH is about 5.6

So its a defo nute burn then? What is the solution, flush with plain Ph'd water for a few days then half the nute strength?
Reply With Quote
  #6    
Old 07-10-2007, 01:46 PM
SmokerE's Avatar
Mr.Ganja
Mr. Ganja
SmokerE is offline
 
Join Date: Mar 2007
Posts: 2,649
SmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to behold
Points: 19,553, Level: 20 Points: 19,553, Level: 20 Points: 19,553, Level: 20
Activity: 0% Activity: 0% Activity: 0%
What's the E.C./PPM?
Reply With Quote
  #7    
Old 07-10-2007, 02:42 PM
recvryjst42day's Avatar
420 TIME
Stoner
recvryjst42day is offline
 
Join Date: Apr 2007
Posts: 566
recvryjst42day is a jewel in the roughrecvryjst42day is a jewel in the roughrecvryjst42day is a jewel in the roughrecvryjst42day is a jewel in the rough
Points: 2,968, Level: 8 Points: 2,968, Level: 8 Points: 2,968, Level: 8
Activity: 0% Activity: 0% Activity: 0%
Quote:
Originally Posted by GreenGro View Post
Canna nutes in rockwool and clay pebbles - it seemed to start after being in the same nute mix for about a week and a half - it was dumped after 2 weeks and the nute mix increased to EC 1.2 or about 600ppm as per the bottle.

2 Days before it started happening cheap CO2 was added delivered under the leaves with straws from a big bottle dunno if that could have any bearing?

Also the leaves had been curling up along the sides for some time before this, that with the yellow tips made me think it could be mag. def.

thanks for the help
This is his E.C. 1.2
__________________
Wish me luck!
Visit my grow log!
Comments and suggestions MORE then welcome!
Reply With Quote
  #8    
Old 07-10-2007, 02:47 PM
SmokerE's Avatar
Mr.Ganja
Mr. Ganja
SmokerE is offline
 
Join Date: Mar 2007
Posts: 2,649
SmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to beholdSmokerE is a splendid one to behold
Points: 19,553, Level: 20 Points: 19,553, Level: 20 Points: 19,553, Level: 20
Activity: 0% Activity: 0% Activity: 0%
What kind of nutes?
Reply With Quote
  #9    
Old 07-10-2007, 03:02 PM
GreenGro's Avatar
Ganja Smoker
Pot Head
GreenGro is offline
 
Join Date: Jan 2007
Posts: 238
GreenGro is on a distinguished road
Points: 2,549, Level: 7 Points: 2,549, Level: 7 Points: 2,549, Level: 7
Activity: 0% Activity: 0% Activity: 0%
Canna substra - not sure if e.c was quite 1.2 but I know PPM was around 600
Reply With Quote
  #10    
Old 07-10-2007, 03:02 PM
babygro's Avatar
Veteran Smoker
Mr. Ganja
babygro is offline
 
Join Date: Dec 2006
Posts: 1,681
babygro has much to be proud ofbabygro has much to be proud ofbabygro has much to be proud ofbabygro has much to be proud ofbabygro has much to be proud ofbabygro has much to be proud ofbabygro has much to be proud ofbabygro has much to be proud ofbabygro has much to be proud of
Points: 6,396, Level: 11 Points: 6,396, Level: 11 Points: 6,396, Level: 11
Activity: 0% Activity: 0% Activity: 0%
Quote:
Originally Posted by GreenGro View Post
Hi thanks

PH is about 5.6

So its a defo nute burn then? What is the solution, flush with plain Ph'd water for a few days then half the nute strength?
Firstly, I'm not a hydro grower, I'm a soil grower.

Secondly, that does look like Mg deficiency - it's quite mild though from the looks of it. I don't really understand why you're getting deficiencies in hydro unless your ph is simply too low for the amount of Mg the plant needs. I think I'd raise the ph to about 6.4, 6.5 for a week at least and see if the plant starts to improve. If it doesn't, you may have to foliar feed a Magnesium sulphate solution (Epsom salts).

It doesn't look like burn to me, your third picture clearly shows the plants leaves paling between the veins - that's not a symptom of over-fertilsation and in anycase that EC is not high enough to burn the plant in my opinion.
 

Tags
problem, mag, deficiency

Thread Tools
Display Modes

Thread

Thread Starter

Forum

Replies

Last Post

deficiency help please! markyfunk Indoor Growing 7 08-07-2009 08:30 AM
Leaf problem? Grow problem thread didnt quite answer it ShadowXVII Newbie Central 9 05-18-2009 02:54 PM
Help!? Is this a Mg deficiency? the.underachiever General Marijuana Growing 4 07-07-2007 07:47 PM
Phosphorus deficiency charbroiled General Marijuana Growing 3 06-05-2007 11:12 PM
Mg Deficiency???? SmokeUmPipe General Marijuana Growing 3 12-06-2006 08:40 PM

Posting Rules

You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Come Check out a new Poker Forum for the online poker community

All times are GMT -7. The time now is 07:15 AM.
Powered by vBulletin
Copyright © 2000-2009 Jelsoft Enterprises Limited.

Content Relevant URLs by vBSEO 3.3.2