biodegradable mulch film, made from biodegradable starch resin, can be decomposed by microbes after disposal, no toxic to soil. Biodegradable Mulch FilmRaw Material: Biodegradable ... , 100% biodegradable with in 180 days, can be fully decomposed into carbon dioxide, water and minerals, good to the crop ... has been certified by EN 13432, ASTM D6400 100% Biodegradable Mulch Film, certified by EN13432