When cultivating ginger in greenhouse, chemical fertilizer should be applied as little as possible to avoid the harm of high salt concentration. Once the soil is damaged by salt accumulation, in addition to flooding the greenhouse in leisure time to make it naturally seep down to leach out some salt in the soil, we can also consider applying crop straws with high carbon content to desalt, digging deep and changing soil to desalt. If it is serious, you can consider replacing the soil in the greenhouse, or moving the greenhouse to other places to eliminate salt damage.