A Study on Hazelnut (Corylus avellana) Growth Conditions in Various Geographical Directions in Natural Ecosystems (Case Study: Ardabil Province Fandoqlu forests) Journal title: International Journal of Farming and Allied Sciences Authors: Hamid Emkani Nane Karan , Asadollah Motaji, Reza Akhavan and Hadi Kiadaliri Subject(s): Agricultural Science, Biochemistry, Plant Sciences, Soil Sciences, Zoology and Animal Science, Agricultural Economics