内蒙古农业大学学报（自然科学版）2026，Vol.47Issue(4)：18-25,8.DOI:10.16853/j.cnki.1009-3575.2026.04.003
微藻对马铃薯产量及根际土壤微生物群落结构组成影响
Effects of Microalgae on Potato Yield and Rhizosphere Soil Community Structure
摘要
Abstract
This study aimed to explore the effects of microalgae application on the potato yield and rhizosphere soil microbial commu-nity structure in Siziwangqi,Inner Mongolia.The effects of no application of microalgae(CK),30 kg/hm² microalgae(L2)and 60 kg/hm² microalgae(L4)on potato yield and rhizosphere soil microbial community structure were compared using high-throughput sequencing technology.Compared to CK,the L2 and L4 treatments increased the potato yield by 14.98%and 10.56%,respective-ly.The application of microalgae increased the contents of organic matter,available phosphorus and available potassium in soil.At the bacterium level,the relative abundance of Actinobacteria in the L2 treatment increased by 8.60%compared to CK.At the bacte-riaceae level,the relative abundance of Micrococcaceae in the L2 treatment increased by 12.00%compared to CK.At the fungal phyla level,the relative abundance of Ascomycota in the L4 treatment increased by 8.29%compared to CK.At the fungal level,compared with CK,the relative abundance of Gibberella in the L2 treatment increased by 9.91%,and the relative abundance of Colletotrichum and Alternaria decreased by 2.78%and 4.56%,respectively.Redundancy analysis showed that the organic matter,available potassium and available phosphorus were positively correlated with Micrococcaceae.This study showed that appropriate application of microalgae could optimize the rhizosphere microbial community structure of potatoes,improve the soil fertility,and significantly increase the potato yield,providing a scientific basis for potato planting in Inner Mongolia.关键词
马铃薯/根际土壤/高通量测序/微生物多样性Key words
Potato/Rhizosphere soil/High-throughput sequencing/Microbial diversity分类
农业科技引用本文复制引用
季祥,李晋宁,于淑玉,白文龙,段鹏程,李超,苗庆丰..微藻对马铃薯产量及根际土壤微生物群落结构组成影响[J].内蒙古农业大学学报（自然科学版）,2026,47(4):18-25,8.基金项目
鄂尔多斯市科技重大专项项目(2022EEDSKJZDZX014-3) （2022EEDSKJZDZX014-3）
内蒙古自治区科技计划项目(2022YFXZ0037) （2022YFXZ0037）
