The invention discloses a
saline-
alkali soil improvement technology, and belongs to the technical field of soil salinization. The
saline-
alkali soil improvement technology comprises the following steps: (1) deeply plowing
saline-
alkali soil before rainy season, and using a saline-alkali soil modifier in a soil
plough layer in the deep plowing process; (2) spraying a
soil surface active agent on the
surface layer of the soil after ploughing; (3) uniformly spreading crushed straws on the
surface layer of the ploughed soil; and (4) after the modifier fully reacts with the soil for a period of time (3-4 weeks), under the conditional situation, fully irrigating the soil with
fresh water for 2-3 times to leach salt. According to the saline-alkali soil improvement technology,
tillage, physical, chemical and biological
improvement methods are comprehensively utilized, the structure of upper soil is changed through the
tillage method, the
soil conditioner is added to condition the
chemical property of the soil, a hydrophobic covering layer is formed on the
surface layer of the soil through
plant straw, water infiltration is guaranteed, water
evaporation is prevented, salt return is prevented, the whole process is easy and convenient to operate, the manual operation frequency is reduced, the physical and chemical properties of the soil are improved, and comprehensive treatment of the salinized soil is realized.