PROBLEM TO BE SOLVED: To provide a polyolefin resin composition which is free from a decrease in transparency due to the bleeding of a weatherproofing agent and free from a decrease in long-term weatherability, and which gives an agricultural film excellent in weatherability, durability and resistance to agricultural chemicals and scarcely subject to limitation on the cultivation of crops utilizing e.g. honeybee crossfertilization. SOLUTION: The polyolefin resin composition is characterized in that it contains an ultraviolet absorber comprising a triaryltriazine represented by formula (1), in an amount of less than 0.1 pt.wt. based on 100 pts.wt. polyolefin resin.
