Effect of saline water drip irrigation on the growth regularity of Suaeda salsa

Halophytes are effective tools for resource utilization of saline-alkali land and underground salt water, and are significant for revegetation and ecological restoration of arid and semi-arid areas. In this study, Suaeda salsa was used as the research object to carry out a one-year saline water drip irrigation experiment with five treatments (CK, 10, 20, 30, and 40 g∙L⁻¹) to study the growth characteristics of S. salsa under saline water drip irrigation. The results showed that the salt tolerance of S. salsa increased gradually with the growth period. S. salsa is most sensitive to salt during germination and in the seedling growth stage, and the seedling percentage can be selected as an index to evaluate the salt tolerance of S. salsa. The flower bud to fruiting stages are the main periods of dry matter accumulation in S. salsa. Increasing the input of water and fertilizer before this period can ensure the aboveground growth and yield of the plant to improve the effect of soil amendment. S. salsa has a strong salt tolerance and can be used for revegetation and landscape construction of severe saline wasteland in arid and semi-arid areas.