Biodegradable mulching film capable of being used for different growth cycles of crops and preparation method of biodegradable mulching film

The invention discloses a biodegradable mulching film capable of being used in different growth cycles of crops, the mulching film comprises the following specific components: a microbial induction substance and a carrier, the microbial induction substance comprises 0-20 unit weight of the microbial induction substance and protein, and the carrier comprises 0-50 unit weight of polyethylene or polypropylene and 0-50 unit weight of a calcium-containing filler. The invention also discloses a preparation method of the biodegradable mulching film. According to the invention, the degradation speed of the agricultural film is adjusted by adjusting the proportion of the microbial induction substances and adjusting the thickness of the agricultural film, so as to meet the planting cycle requirement of crops. 本发明公开的是可用于作物不同生长周期的生物降解地膜，地膜包括以下具体成份：微生物诱导物质和载体，微生物诱导物质为0-20单位重量的微生物诱导物质和蛋白质，载体包括0-50单位重量的聚乙烯或聚丙烯、0-50单位重量的含钙填充剂。本发明还同时披露了所述生物降解地膜的制备方法。本发明通过调整微生物诱导物质的比例配合以及调整农膜厚度，来调整农膜的降解速度，以匹配农作物的种植周期需要。