Method for improving soda saline-alkaline paddy fields by stirring and discharging slurry and application thereof

The method for improving paddy fields by stirring and discharging slurry provided by the present disclosure can quickly and greatly reduce soil salinity, with a cost lower than 1,000 yuan/hm2, a yield of 5,065 kg/hm2 to 6,304 kg/hm2; it saves the step of water harrowing before conventional rice planting and transplanting, and offers simple operation and promising prospect of replication and popularization, providing important support for increasing grain in soda saline-alkaline areas in the western Songnen Plain.