context: Agriculture in Portugal is based on small to medium-sized family-owned dispersed units. However, the sector also includes larger scale intensive farming export-oriented agrobusinesses backed by companies (like Grupo RAR's Vitacress, Sovena, Lactogal, Vale da Rosa, Companhia das Lezírias and Valouro). The country produces a wide variety of crops and livestock products, including tomatoes, citrus, green vegetables, rice, corn, barley, olives, oilseeds, nuts, cherries, bilberry, table grapes, edible mushrooms, dairy products, poultry and beef.
question: পর্তুগিজ কৃষি কীসের উপর ভিত্তি করে?
answers: small to medium-sized family-owned dispersed units