施用甘草药渣有机肥对水稻根际微生物群落结构影响研究

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中图分类号：S141.4文献标志码：A

文章编号：1673-6737（2026）01-0037-05

Abstract：Inthecontextofthedevelopmentofgreenagriculture，inordertoachievetheresourceutilizationofagricultural wasteandimprovetheeffciencyofricecultivation，organicfertilizerwaspreparedbymixing licoriceresiduewithstraw， livestockmanure，etc.throughmicrobialfermentation.Inordertofurtherinvestigateitsefectsonthestructureandgrowth ofricerhizospheremicrobialcommunities，thisorganicfertilizerwastestedinthefieldandanalyzedusinghigh-throughput sequencing，fieldobservations，andothermethods.Theresultsshowedthatinthesingleapplicationtreatmentof 200 log/667m2 licoriceresidue organic fertilizer，therelativeabundance of Proteobacteria in therhizospherereached 38.6% ， and the proportion of Ascomycota was 62.3% .It can be seen that the application of licorice residue organic fertilizer can efectivelyimprovethestructureofrhizospheremicrobialcommunities.Atthesametime，therelativeabundanceofnitrogen fixingbacteriaandphosphorussolubilizing bacteriaincreasesfirstandthendecreaseswiththegrowthperiod，reachinga peak at 45 days 6.5% ， 5.2% ），which ishighly consistent with the peak period of rice fertilizer demand.In summary， licoriceresidueorganicfertilizercanregulatethe structureofricerhizospheremicrobialcommunitiesandcontributetorice development.The method proposed bytheresearch instituteprovides theoreticalsupportandnew approaches for the resource utilization of agricultural waste and the cultivation of high-quality and high-yield rice.

KeyWords：Licoriceresidue; Organic fertlizer;Rice;Rhizosphere microorganisms;Microbial communitystructure

随着全球人口增长与生态环境压力加剧，农业生产模式正加速向绿色、可持续方向转型。（剩余6087字）