文献类型： 外文期刊

作者： Wang, Chao ¹ ; Ma, Haiyang ¹ ; Feng, Zhihan ² ; Yan, Zhenxing ¹ ; Song, Bolong ¹ ; Wang, Jialong ² ; Zheng, Yuyin ² ; Hao, Weiping ¹ ; Zhang, Wenying ³ ; Yao, Minjie ² ; Wang, Yaosheng ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China

2.Fujian Agr & Forestry Univ, Fujian Prov Univ, Coll Resources & Environm, Engn Res Ctr Soil Remediat, Fuzhou 350002, Peoples R China

3.Hebei Acad Agr & Forestry Sci, Inst Dryland Farming, Hengshui 053000, Peoples R China

4.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Trop Crops Nutr Hainan Prov, Zhanjiang 524091, Peoples R China

关键词： Physicochemical factors; Prokaryotic microorganisms; Bulk soil; Rhizosphere; Endosphere; Yield

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）

ISSN： 0048-9697

年卷期： 2022 年 842 卷

页码：

收录情况： SCI

摘要： The effect of long-term water and integrated fertilization on prokaryotic microorganisms and their regulation for crop nutrient uptake remains unknown. Therefore, the impact of soil water and integrated fertilization after eight years on prokaryotic microbial communities in different compartments of root zone and their association with wheat nitrogen (N) absorption and yield were investigated. The results showed that compared with fertilization treatments (F), water regimes (W) more drastically modulated the prokaryotic microbial community structure and diversity in bulk soil, rhizosphere and endosphere. The increase of irrigation improved the prokaryotic diversity in the rhizosphere and endosphere while decreased the diversity in the bulk soil. Application of organic fertilizers significantly improved soil organic matter (SOM) and nutrient contents, increased rhizosphere and endophytic prokaryotic microbial diversity, and elevated the relative abundance of aerobic ammonia oxidation and nitrification-related functional microorganisms in rhizosphere and endosphere. Increasing irrigation elevated the relative abundance of functional microorganisms related to aerobic ammonia oxidation and nitrification in the rhizosphere and endosphere. Soil water content (SWC) and NH4+-N as well as NO3--N were key predictors of prokaryotic microbial community composition under W and F treatments, respectively. Appropriate application of irrigation and organic fertilizers increased the relative abundance of some beneficial bacteria such as Flavobacterium. Water and fertilization treatments regulated the prokaryotic microbial communities of bulk soil, rhizosphere and endosphere by altering SWC and SOM, and provided evidence for the modulation of prokaryotic microorganisms to promote nitrogen uptake and wheat yield under long-term irrigation and fertilization. Conclusively, the addition of organic manure (50 %) with inorganic fertilizers (50 %) and reduced amount of irrigation (pre-sowing and jointing-period irrigation) decreased the application amount of chemical fertilizers and water, while increased SOM and nutrient content, improved prokaryotic diversity, and changed prokaryotic microbial community structure in the wheat root zone, resulting in enhanced nutrient uptake and wheat yield.