Books on Experimental Plant Nutrition?

[Georgios Liakopoulos]

I am working my PhD on plant nutrition (boron deficiency in Olea
europaea)
and I could use a book on how to use hydroponics to study plant
physiology.
The only one I have is "Sand and water culture methods used in the study
of
Plant nutrition" writen by E.J. Hewitt. It's a fine book but rather old
(1952). Any suggestions?

Thanks for reading,
Georgios Liakopoulos
Agricultural University of Athens
rocket at aua.gr