Research progress of amendments on improving soil environment and promoting crop growth after fumigation

Soil fumigation is currently an effective and rapid method to prevent soil-borne diseases, insects, and weeds. However, some pathogens may reproduce again as crops are planted, leading to the continuous development of diseases. After soil fumigation treatment, it will cause the soil microenvironment to be in a state of imbalance. Soil amendments can improve the soil environment, reduce crop root diseases, reduce nutrient loss and improve the quality of agricultural products. Soil fumigation combined with amendments can repair or improve the soil to a certain extent, restore the microbial community affected by the fumigants or increase the relative abundance of beneficial microorganisms, prevent soil pathogenic bacteria from reinfecting, which will make the soil more conducive to the growth of crops. This article briefly summarizes the classification information of commonly used fumigants and soil amendments, focusing on the combined use of soil amendments and fumigants to affect the physical and chemical properties, enzyme activities, microbial communities and crop growth of the soil after fumigation. Therefore, this study has provided the reference for the prevention and control of disease-borne diseases, the combined use of fumigants and soil amendments, and related mechanisms.