Salts in the water? Is it airlayered? If so do you have a moisture meter? Try checking the moisture level right at the airlayer and the soil around it. I've had the soil a couple inches away be moist but the soil directly around the airlayer be completely dry.

good luck,
-Ethan

Ethan ,, thank u ,, i will certainly try to see whether its salty water or i did over fertilize it ,, cause i heard lots of talks about over fertilizing harms and especially its air layered and was shipped soon from the US to Egypt ,,

Amr