广西林业科学2026，Vol.55Issue(1)：9-20,12.DOI:10.19692/j.issn.1006-1126.20260102
施肥对白木香根际土壤养分及微生物群落的影响
Effects of Fertilization on Rhizosphere Soil Nutrients and Microbial Communities of Aquilaria sinensis
摘要
Abstract
In order to select suitable fertilization method for early cultivation of Aquilaria sinensis,taking Aqui-laria sinensis'Qi Nan'clonal improved variety'Guixiang No.1'as research object,three fertilization treatments,including mineral source potassium fulvate compound fertilizer(T1),peanut bran organic fertilizer(T2)and po-tassium sulfate compound fertilizer(T3),were established.Through field experiments combined with high-throughput sequencing technology,effects of different fertilization treatments on growth of A.sinensis as well as on rhizosphere soil nutrients and microbial communities were explored.Results showed that compared with non-fertilizer control,all fertilization treatments significantly promoted growths of plant height and ground di-ameter,decreased soil pH and increased contents of soil organic matter,total nitrogen,total phosphorus,total potassium,alkali-hydrolyzable nitrogen,available phosphorus and available potassium.For bacterial communi-ty,fertilization treatments increased relative abundance of Actinobacteriota and Acidothermus,while decreased Acidobacteriota relative abundance.For fungal community,fertilization treatments increased relative abun-dance of Basidiomycota,Mucoromycota and Umbelopsis,while T1 and T2 treatments decreased Ascomycota rel-ative abundance.Fertilization treatments significantly decreased diversity of bacterial community but had no significant effects on diversity of fungal community.Fertilization treatments had effects on bacterial and fungal community structures.Contents of soil available phosphorus,available potassium and organic matter were key factors influencing bacterial community at phylum level.Soil available phosphorus content was key factor influ-encing bacterial community at genus level.Soil organic matter content was key factor influencing fungal commu-nity at phylum level.Soil water content and organic matter content were key factors influencing fungal communi-ty at genus level.Umbelopsis was key factor influencing plant height growth,and soil organic matter content was key factor influencing ground diameter growth.T2 treatment exhibited the best promoting effect on A.sinensis growth,with overall performance superior to other fertilization treatments,which was suggested to promote in A.sinensis plantations.关键词
施肥/根际土壤养分/细菌和真菌/白木香Key words
fertilization/rhizosphere soil nutrient/bacterium and fungus/Aquilaria sinensis分类
农业科技引用本文复制引用
薛焕容,叶绍明,李开祥,邓福春,陈迎迎,李小飞,刘莉,梁家铭,竺永金,尹宗瑜,李宝财..施肥对白木香根际土壤养分及微生物群落的影响[J].广西林业科学,2026,55(1):9-20,12.基金项目
广西林业科技项目(桂林科研[2022ZC]第72号) （桂林科研[2022ZC]第72号）
广西第一批青苗人才项目(陈迎迎) （陈迎迎）
八桂学者项目(科技创新类第六批-李开祥) （科技创新类第六批-李开祥）
广西科技创新平台计划项目(桂科LT2504240004) （桂科LT2504240004）
广西重点实验室项目(JA-25-03-01,JA-23-02-02) （JA-25-03-01,JA-23-02-02）
广西重点研发计划项目(桂科AB22080082) （桂科AB22080082）
