不同醋糟施量对碱地风毛菊生长及土壤化学性质的影响

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.

Effect of Different Application Rates Vinegar Residues on Saussurea runcinata Growing and Chemical Properties of Soil

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.