BIODEGRADABLE AND BIOCOMPATIBLE AGRICULTURAL MULCH AND METHOD OF PREPARING SAME

摘要

The mulch comprises a sheet of cellulose fibres having a basis weight betwee n about 40 g/m2 and 60 g/m2. The sheet has at least one face coated with a layer of polylactide, which is used in an amount such tha t it weighs between about 2 g/m2 and 15 g/m2. The preparation is carried out by depositing on the sheet an amount of a liquid layer of polylactide such that when it solidifies, it weighs between about 2 g/m2 and 15 g/m , and allowing the layer to solidify to adhere to the shee t and constitute the mulch. This mulch has a programmed duration of biodegradation which makes it particularly useful in the agricultural field.