水资源与水工程学报2025，Vol.36Issue(2)：181-190,199,11.DOI:10.11705/j.issn.1672-643X.2025.02.21
节水灌溉条件下微生物菌肥对盐碱地土壤健康及向日葵生长的影响
Effects of microbial fertilizer on soil health and sunflower growth in saline-alkali soil under water-saving irrigation
摘要
Abstract
In order to explore the effect of microbial fertilizer on saline-alkali soil under water-saving ir-rigation,a field experiment on sunflowers was carried out in Hetao Irrigation District.Different combina-tion of irrigation gradients(0%,10%,20%water-saving condition)and ETS microbial fertilizer(Thomas microbiota and Pasteurella microbiota)application gradients(0;3,000;4,500 kg/hm2)were established to examine the impact of microbial fertilizer treatments on soil physicochemical properties,mi-crobial community structure,and sunflower growth under different water-saving irrigation conditions.The results show that for the application of 4,500 kg/hm2 solid microbial fertilizer and 180 L/hm2 liquid mi-crobial fertilizer,20%water-saving condition significantly reduced the soil bulk density and pH,signifi-cantly increased the soil moisture content,total porosity,as well as the contents of organic matter,total nitrogen,available phosphorus,and available potassium(P<0.05),compared with 0%water-saving condition.The stem diameter and sunflower yield were also improved(P<0.05);whereas the stem height and disc diameter showed no significant change(P>0.05).Proteobacteria,Cyanobacteria,Gemmatimonadota,Actinobacteriota and Acidobacteriota were the dominant phyla in the saline-alkali soil in Hetao Irrigation District,with Chloroplast,and S0134_terrestrial_group as the dominant genera.Soil moisture content showed a significant negative correlation with Actinobacteriota(P<0.05);organic matter showed a significant positive correlation with Gemmatimonadota,Planctomycetota,and S0134_terrestrial_group,and a significant negative correlation with Firmicutes(P<0.05);soil total ni-trogen showed a significant positive correlation with Gemmatimonadota,Acidobacteriota,Chloroflexi,Myxococcota,NB1-j,and Rokubacteriales(P<0.05).The application of microbial fertilizer under wa-ter-saving irrigation is conducive to water saving,soil improvement and the efficient utilization of water and fertilizer in sunflower.关键词
盐碱地/微生物菌肥/节水灌溉/土壤改良/向日葵/河套灌区Key words
saline-alkali soil/microbial fertilizer/water-saving irrigation/soil improvement/sunflow-er/Hetao Irrigation District分类
农业科技引用本文复制引用
轩晓博,乔明叶,石畅,鲍珊珊,封硕,赵文靖..节水灌溉条件下微生物菌肥对盐碱地土壤健康及向日葵生长的影响[J].水资源与水工程学报,2025,36(2):181-190,199,11.基金项目
国家重点研发计划项目(2022YFC3202400) （2022YFC3202400）
中国博士后科学基金项目(2021M701374) （2021M701374）
黄河设计院自主研究开发项目(2021KY024) （2021KY024）
