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badflash
07-10-2010, 08:46 PM
Keith Murphy of H.A. Ponics posted this in one of the mail groups I belong to:

The First Guide from the British, That explains the Nutrient missing with picture
http://www.hbci.com/~wenonah/min-def/list.htm

The second is on Plant Physiology with pictures
http://4e.plantphys.net/article.php?ch=t&id=289

Check it out & bookmark it.

grantmcd
08-05-2010, 02:37 PM
Thanks badflash, I have been searching for something like this for a while now.

jackalope
08-06-2010, 03:14 PM
Nice Find :!: :!: THX

urbanfarmer
10-12-2010, 11:10 PM
I found the first one a while ago, but the 2nd one is amazing. I have them bookmarked and use them as a reference regularly. Thank you so much! :D

urbanfarmer
08-25-2011, 04:41 PM
Another nice source: http://www.unce.unr.edu/publications/fi ... fs0265.pdf (http://www.unce.unr.edu/publications/files/ho/2002/fs0265.pdf)

urbanfarmer
08-25-2011, 04:42 PM
And this one too! http://ag.arizona.edu/pubs/garden/az1106.pdf

davidstcldfl
07-02-2014, 07:45 AM
Just drawing attention to some great posts...that we hope we never need... :(

Here's another link to check out...

http://www.farmspeak.com/nutrient-deficiency.html

Apollo
07-02-2014, 10:06 PM
All these charts and pictures are great…but the most important information I got out of all of this may have more to do with your PH levels..

1. PH level is very important, most all the elements have optimum PH level for absorption. The plant will not assimilate the nutrient if the PH level is too low or too high. Keep PH between 6.8 to 7.0 anything under 6.6 can kill off your BIO Filter. Anything over 7.8 your roots wouldn't be able to absorb any of the nutrients.

2. Iron, manganese and zinc are three essential elements that become inaccessible when PH is above 7.8, Hence their may not be a deficiency of one of these minerals, if your PH levels are off.