Agriculture is an important branch of Romania's traditional economy. Natural conditions like climate and soil vary across mountainous, hilly, and plains regions, influencing what is grown. Cereal and industrial crops dominate arable land, while livestock are raised throughout the country depending on terrain and vegetation. Mechanization and inputs lag behind other countries. Privately-owned small farms are most common. Key crops include wheat, maize, potatoes, vegetables, and fruits like apples and plums. Livestock include cattle, sheep, pigs, and poultry. Viticulture and sericulture also occur where conditions allow.