Research Progresses on Improvement of Saline-alkaline Soil with Wood Vinegar
Saline soil has limited plant growth due to its high alkalinity,poor air permeability,poor water permeability,easy surface hardening,low nutrient content,and harmful salt content.However,the national food security strategy requires greater efforts to"request food from saline soil land".A large number of studies had proved that the appropriate concentration of wood vinegar could effectively improve the physical and chemical properties of saline soil,thereby increasing its productivity of saline soil.The article listed the physical and chemical properties and component contents of different types of wood vinegar,described the range of application concentrations of wood vinegar,and summarized the changes in soil physics,chemistry,microorganisms,enzyme activities,and plant growth after wood vinegar was applied to saline-alkali soil,so as to provide a theoretical reference for the application of wood vinegar in saline soil.