Abstract:

This study was designed to determine the growing of Saussurea runcinata and the changes of chemical property in saline-alkali soil with different application rates of vinegar residues (0(CK), 100, 300, 500 or 700 g·kg^-1 soil), to ascertain the effectiveness of vinegar residues for saline-alkali soil. The results showed that the growing of Saussurea runcinata was enhanced by vinegar residues, and the contents of Na⁺, K⁺, Ca²⁺, Mg²⁺, Cl^- and SO₄^2- of soil increased, but a decrease in pH, ESP, and the contents of CO₃^2- and HCO₃^- of soil was observed. Thus, vinegar residues can be used as a good material to improve the saline-alkali soil.

Key words: Vinegarx residues, Saline-alkali soil, Saussurea runcinata, Ions, Exchangeable sodium percentage

摘要：

通过对盐碱化草地土壤施用0(CK),100,300,500和700 g·kg^-1土壤的醋糟,并分析碱地风毛菊(Saussurea runcinata)的生长及种植前后土壤性质的变化,以探讨醋糟对盐碱土壤的改良效果.结果表明:施用醋糟提高了碱地风毛菊的生长特性,并降低了盐碱土壤pH,ESP及CO₃^2-和HCO₃^-含量,增加了Na⁺,K⁺,Ca²⁺,Mg²⁺,Cl^-和SO₄^2-含量.因此,醋糟可以作为改良盐碱地的优良材料.

关键词: 醋糟, 盐碱土, 碱地风毛菊, 离子, 钠碱化度