Agriculture plays a vital role in the economy and, in many cases, in the survival of nations, since it provides the basic subsistence for the entire population of a country while at the same time it interacts with several other industries. Especially in rural areas, inhabitants depend on agriculture as it is critical not only for their nutrition but it also constitutes the base of all trade. Moreover, the ever increasing world population demands larger amounts of food which subsequently presupposes a well-managed and cost-effective agriculture.