Bio-degradable composite nonwoven fabric for plant cultivation

A bio-degradable composite nonwoven fabric for plant cultivation, comprising

• (A) a biodegradable polyester filament nonwoven fabric layer consisting essentially of a plurality of continuous filaments comprising a bio-degradable polyester which is a polymerization product of a glycol component comprising at least one aliphatic dihydric alcohol with a dicarboxylic acid component comprising at least one member selected from the group consisting of aliphatic dicarboxylic acids and hydroxyl and acetoxyl derivatives of the above-mentioned dicarboxylic acids;
• and
• (B) a paper sheet layer laminated on the biodegradable polyester filament nonwoven fabric layer (A) and comprising wood pulp fibers, wherein
• (a) the continuous filaments and the wood pulp fibers are three-dimensionally entangled with each other to form a composite nonwoven fabric, and
• (b) a plurality of spot regions which are spaced from each other, are substantially free from the pulp fibers, and have a distribution density of the continuous filaments of 30 to 50%, an area of 0.16 to 16 mm.sup.2 and a total area corresponding to 5 to 60% of the total surface area of the composite nonwoven fabric, are provided in the composite nonwoven fabric, the distribution density of the continuous filaments being defined as a ratio of a total area of the continuous filaments visible within the pulp fiber-free spot region to the total surface area of the pulp fiber-free spot regions, determined from photographs of the spot regions.