<b>Soil Salinity and Alkalinization</b>

In April and October 2023, soil samples were collected from the three treatments, R-17 (17 years of rice reclamation) and R6 (6 years of rice reclamation), and CK (saline-sodic bare land), at depth intervals of 0-20, 20-40, and 40-60 cm depth using a soil auger. In each treatment, three replications were randomly taken from each soil depth, making a total of 27 samples. These properties were analyzed for soil saline and alkalinization properties.