An agricultural film structure composed of a mixture of a thermoplastic resin and an infrared radiation-absorbing powdery inorganic compound, said mixture comprising (a) 100 parts by weight of a thermoplastic resin and (b) about 1 to about 20 parts by weight of a hydrotalcite powder, as the infrared radiation absorbing powdery inorganic compound, having an average secondary particle diameter of not more than about 5 microns and a BET specific surface area of not more than about 30 m2/g and being represented by the following formula (1) M1-x2+ Alx(OH)2(An-)x/nmH2O (1) wherein M2+ represents a divalent metal ion selected from the group consisting of Mg, Ca and Zn ions, An- represents an anion having a valence of n, and x and m satisfy the following conditions 0x0.5 0/=m/=2.
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