| abstract |
The invention belongs to the field of saline-alkali land improvement, and in particular relates to a method for repairing saline-alkali land by using Suaeda salsa, comprising the following steps: S10: install a salt drain pipe on the saline-alkali land, and then install an automatic watering device; S20: deep plough the saline-alkali land and level it ; Then start the automatic watering device for watering and irrigation; S30: Soak the seeds of Suaeda salsa, then mix with fine sand and water until they are scattered, and cultivate in the plug soil. After 15-20 days of planting, When the plant height is 7-10cm, transplant it into saline-alkali soil; S40: Plant the seedlings around the automatic watering device at a row spacing of 40-50cm; S50: Weed regularly, and use the automatic watering device to water regularly; S60: Suaeda salsa is cut twice a year, leaving a stubble of 7-10cm. After each cut, sprinkle water and top dressing. Compared with the traditional saline-alkali land restoration scheme, this scheme combines the planting of Suaeda salsa and the salt discharge pipe by using the automatic watering device, and combines biological improvement, engineering improvement and chemical improvement, and the restoration effect is better. |