农业环境科学学报2025，Vol.44Issue(2)：440-451,12.DOI:10.11654/jaes.2024-0224
有机物料混施对盐碱土壤改良与溶解性有机质荧光特征的影响
Effects of mixed application of organic materials on saline soil amelioration and fluorescence characteristics of dissolved organic matter
摘要
Abstract
A spinach pot experiment containing organic materials was conducted to investigate the fluorescence characteristics of dissolved organic matter(DOM)and the improvement effect of saline-alkali soil.The experimental treatments were:control(CK),straw alone(S),biochar alone(B),straw and vegetable straw hydrothermal lysate co-application(SHA),and biochar and taille hydrothermal lysate co-application(BHA).DOM fluorescence characteristics were characterized using parallel factor analysis to resolve the correlation between spinach yield,soil nutrients,and fluorescence components.The results showed that compared with the single application of organic materials,the organic material combination was more effective in improving spinach yield and alleviating soil salinity.The spinach yield of SHA and BHA treatments increased by 159.2%and 81.6%compared with that of CK,respectively.The content of soil organic matter of all treatments increased significantly by 66.3%-70.2%,among which the SHA treatment had the highest content of organic matter,which amounted to 4.8 g·kg-1.SHA treatment promotes crop growth mainly by increasing the content of humic substances and tryptophan fractions in DOM of saline soils.The results indicated that combination application of organic materials and humic substances was more suitable and effective for saline soil improvement.关键词
盐碱土壤/溶解性有机质/荧光/秸秆/生物炭/尾菜水热裂解液Key words
saline soil/dissolved organic matter/fluorescence/stalk/biochar/taille hydrothermal lysate分类
农业科技引用本文复制引用
高萌,李大智,马建,宋俏博,陈欣..有机物料混施对盐碱土壤改良与溶解性有机质荧光特征的影响[J].农业环境科学学报,2025,44(2):440-451,12.基金项目
中国科学院战略性先导科技专项(XDA28090300) （XDA28090300）
沈阳市科技计划项目(22-317-2-10) （22-317-2-10）
寿光市科技发展计划项目(2022JH10) Strategic Priority Research Program of the Chinese Academy of Sciences(XDA28090300) （2022JH10）
Shenyang Science and Technology Program(22-317-2-10) （22-317-2-10）
Shouguang Science and Technology Development Program Projects(2022JH10) （2022JH10）
