[Distribution Characteristics of Soil Resistance Genes in Cotton Fields with Different Continuous Cropping Years].

With the continuous development of intensive agriculture， the crop rotation index has increased. Continuous planting of a single type of crop introduces specific environmental selective pressures that may lead to changes in the soil resistome. Therefore， investigating the composition and characteristics of antibiotic resistance genes （ARGs） and metal resistance genes （MRGs） in soil with different degrees of continuous cropping is of great significance for promoting the green development of agriculture.