One of the most advantages of using soilless systems is its capability to control irrigation water and
fertilizers supply (Sonneveld and Voogt, 2009). In this respect, it can be indicated that soilless culture will
help to increase water and nutrient use efficiency in regions where water is scarce like Saudi Arabia.
Furthermore, soilless culture have proven, world-wide, to increase production over soil because of its ultimate
advantage to overcome soil borne pathogens (fungi, bacteria, nematodes). In connection, soilless considers a
friendly environmental system since it requires less pesticides, steam sterilization or chemical fumigation.