Congratulations, that's the worst case of nute lockout I have ever seen a picture of.
FLUSH FLUSH FLUSH and then FLUSH SOME MORE!!!!!!
Then give them a light foliar feed.
The roots are so fried by now that you're going to have to give them N through the leaves just so they don't croak.
But those plants are so far gone....
It might be time to go buy yourself a bag o shwag so you can practice on 'free' beans until you get feeding straightened out.
Also a suggestion for next time is to put more perlite in that potting soil.
And make sure it has pH 6.8. That soil that you're using looks like it has pieces of pine bark mulch in it, and that stuff is really acidic, and can cause symptoms like what you're seeing.

If you really want to save that plant,
step1: FLUSH with pH 6.8 water
step2: Make some new potting mix that is light and balanced, with lots of perlite.
step3: transplant into your new soil
step4: water with pH balanced water and superthrive
step5: put a humidity dome over your plant for a couple days because the roots are probably damaged.
step6: wait.
post pics if you pull off the miracle!
good luck!
stinkyattic Reviewed by stinkyattic on . flushing plants? i have recently ferted to early!!what a mess up!how much do i need to flush plants?done a gallon w/epsomsalt 2tbson the 4 plants how much more is needed?thanks in advance,and how long before i could see some results so ill know to start over or what?newbie we can make all kind of mistakes?:stoned: Rating: 5