家畜生态学报2026，Vol.47Issue(8)：95-103,9.DOI:10.3969/j.issn.1673-1182.2026.08.012
在尾矿土壤中添加菌糠对紫花苜蓿营养生长和重金属积累的影响
Effects of Spent Mushroom Substrate Amendment to Tailings Soil on the Vegetative Growth and Heavy Metal Accumulation of Alfalfa
摘要
Abstract
To evaluate the application potential of spent mushroom substrate(SMS)in promoting the vegetative growth and safe production of alfalfa(Medicago sativa L.)grown in tailings soil,a pot experi-ment was conducted with four SMS application rates:0％(TS_0,control),2％(TS_2),4％(TS_4),and 6％(TS_6)(w/w).The effects of SMS amendment on the vegetative growth and heavy metal accu-mulation of alfalfa grown in tailings soil were investigated.The results showed that the 4％SMS treatment produced the most favorable effects.Compared with the control,it significantly increased plant height and biomass,while enhancing the accumulation of nitrogen(N),phosphorus(P),potassium(K),and amino acids(P＜0.05).In addition,the overall amino acid composition was improved to a certain extent.Fur-thermore,SMS amendment reduced the accumulation of potentially hazardous elements,including copper(Cu),iron(Fe),chromium(Cr),and nickel(Ni),in the aboveground tissues of alfalfa,while showing no inhibitory effect on the accumulation of the essential micronutrient zinc(Zn).In conclusion,the appli-cation of 4％SMS to tailings soil promoted the vegetative growth of alfalfa and effectively reduced the ac-cumulation of potentially hazardous heavy metals in aboveground tissues,demonstrating the promising po-tential of SMS for supporting the safe production of alfalfa under tailings soil conditions.关键词
菌糠/尾矿土壤/紫花苜蓿/氨基酸/重金属Key words
spent mushroom substrate/tailings soil/alfalfa/amino acid/heavy metals分类
农业科技引用本文复制引用
殷旭,朱龙韬,张永康,孙婉玉,李鸣雷,席杰军..在尾矿土壤中添加菌糠对紫花苜蓿营养生长和重金属积累的影响[J].家畜生态学报,2026,47(8):95-103,9.基金项目
陕西省农业关键核心技术攻关项目(2024NYGG010) （2024NYGG010）
陕西省重点产业创新链项目(2020ZDLNY02-05) （2020ZDLNY02-05）
