How to deal with Nitrogen nutrient burn

Hey guys, a couple of my plants were lacking Nitrogen so i ended up adding some Urea to all of them, but one did not like it at all and has clear signs of nutrient burn as you can see in the following picture.

How can i fix this? I appreciate any help.

Cheers

You need to flush your plant, and it is recommended to do so at 1 gallon of water per gallon of medium. Not sure if you check ppm at all or ec? I do know that flushing while it won’t help the parts that are already destroyed, it should help promote newer growth and eventually you can discard the old. You should then ease the nutrients back in after about a week. I hope this helps! I don’t water to run off or check ppm or ph my water but that is what works for me. Good luck and Happy Growing