文献类型： 外文期刊

作者： Huang, Jian ¹ ; Dong, Zhiduo ³ ; Meng, Ajing ¹ ; Qi, Tong ¹ ; Ge, Chunhui ¹ ;

作者机构： 1.Xinjiang Acad Agr Sci, Inst Soil Fertilizer Agr Water Saving, Urumqi 830091, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Saline Alkali Soil Improvement & Utilizat, Urumqi 830091, Peoples R China

3.Xinjiang Agr Univ, Coll Water Conservancy & Civil Engn, Urumqi 830052, Peoples R China

关键词： shale oil residue; maize; antioxidant enzyme activity; salt stress

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2024 年 14 卷 1 期

页码：

收录情况： SCI

摘要： Soil salinization is a primary environmental factor leading to reduced crop yields, and oil shale waste residues may have the potential to alleviate plant salt stress. This study aims to investigate the effects of three types of oil shale waste residues (fine concentrate ore, fine ore, and semi-coke) on the growth and physiological characteristics of maize seedlings in saline-alkali soil. The results indicate the following: (1) All three types of oil shale waste residues increased the root vitality of seedlings and reduced the root proline content. (2) The three types of oil shale waste residues increased the activity of superoxide dismutase (1.70% to 97.19%) and peroxidase (29.39% to 61.21%) in maize seedlings, but there were differences in their effects on catalase activity. The fine ore and semi-coke treatments increased catalase activity (4.98% to 77.42%), while fine concentrate ore decreased catalase activity (39.28% to 5.30%). (3) The three types of oil shale waste residues effectively alleviated the degree of membrane lipid peroxidation in maize seedling leaves. (4) Principal component analysis showed that the semi-coke treatment was beneficial to the growth and physiology of maize seedlings in saline-alkali soil, with the optimal effect occurring at a 0.2% addition rate. In conclusion, adding semi-coke to saline-alkali soil promotes the growth of maize by regulating its physiological and biochemical mechanisms, alleviating the salt stress on maize seedlings caused by salt content.