Effects of 30-years deficiency fertilization and chemical fertilizer reduction combined with burned soil on cassava yield and microbial community in the rhizosphere soil
文献类型： 外文期刊
作者： Wei, Yunxia 1 ; Huang, Jie 1 ; Xu, Ruili 1 ; Xue, Xinxin 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Rubber Res Inst, Haikou 571101, Peoples R China
关键词： Cassava; Long-term fertilization regime; Nutrients deficiency; Soil quality; Microbial functional prediction
期刊名称：PLANT AND SOIL （ 影响因子：4.1； 五年影响因子：4.7 ）
ISSN： 0032-079X
年卷期： 2025 年
页码：
收录情况： SCI
摘要： Background and aimsCassava adapts to infertile soils, but long-term inadequate fertilization impacts on yield and soil microbes remain unclear. This study aims to evaluate three-decade fertilization effects on cassava productivity, soil microbial communities, and resilience mechanisms to inform sustainable tropical agriculture strategies.MethodsRhizosphere soils were sampled from a 30-years experimental field with six treatments: NPK (balanced fertilization), PK (N-deficiency), NK (P-deficiency), NP (K-deficiency), -NPK (no fertilization), and FNPK (50% NPK plus burned soil). High-throughput sequencing was used to analyze microbial community composition and functions.ResultsDeficiency treatments (PK, NK, NP, and -NPK) decreased yield by 38.6% (P = 0.000), 21.3% (P = 0.021), 38.1% (P = 0.000), and 61.6% (P = 0.000) versus NPK, respectively, while FNPK maintained yield (P = 0.480). Compared to NPK, NK intensified acidification (pH decrease 6.0%), and NP depleted organic carbon (34.0% loss), whereas FNPK improved soil pH by 13.6% and nutrients availability. Deficiency fertilization did not significantly impact on bacterial and fungal alpha-diversity, whereas FNPK increased bacterial richness, diversity, and modified bacterial and fungal beta-diversity. Soil pH mainly drove microbial community shifts. FNPK treatment reduced abundances of Acidobacteriota and Crenarchaeota phyla while boosted abundances of Acidobacteriota genus RB41 and Proteobacteria MND1. FNPK shifted dominant fungal phyla from Ascomycota to Basidiomycota, and reduced the wilt-associated genus Melanconiella. PK, NK, and -NPK suppressed key microbial functions, FNPK enhanced functional groups of chemoheterotrophy, and arbuscular mycorrhizal.ConclusionThese findings suggest that prolonged nitrogen-based fertilization exacerbates soil acidification and disrupts microbial communities, while integrating burned soil with chemical fertilizers can improve fertility and diversity.
- 相关文献
作者其他论文 更多>>
-
A Novel Large-Particle Slow-Release Fertilizer Improves Nutrient Use Efficiency and Yield of Cassava by Boundary Layer Limitation
作者：He, Cuicui;Wang, Hua;Huang, Jie;Wang, Dengfeng;Qin, Xindao;Zhang, Wen;Wu, Dongming;Jiu, Yuanda;Zhao, Min;Xie, Yi;Chen, Qingmian;Zhou, Rongfei;Li, Guichun;Xu, Minggang
关键词：large-particle slow-release fertilizer; slow-release performance; agronomic efficiency; kinetic modeling; nutrient transport
-
Litter removal and nitrogen deposition alter soil microbial community composition and diversity in a typical rubber (Hevea brasiliensis) plantation of Hainan, China
作者：Xue, Xinxin;Ren, Changqi;Zhao, Chunmei;Wang, Wenbin;Luo, Xuehua;Zhang, Yongfa;Cha, Zhengzao;Xue, Xinxin;Ren, Changqi;Zhao, Chunmei;Wang, Wenbin;Luo, Xuehua;Zhang, Yongfa;Cha, Zhengzao;Xue, Xinxin
关键词：Litter removal; Nitrogen addition; Microbial diversity; Community composition; Tropical plantation
-
Bacterial-mediated nutrient cycling and yield recovery in high-density cassava-maize intercropping systems enhanced by maize straw return
作者：Shao, Wei;Wang, Hua;Wang, Xiuhua;Huang, Jie;Wang, Dengfeng;He, Cuicui;Lu, Saiqing;Xu, Minggang
关键词：High-density cassava-maize intercropping; Maize straw return; Nutrient availability; Bacterial community; Land equivalent ratio
-
An innovative ocean thermal energy conversion system with zeotropic Rankine cycle and direct contact membrane distillation for enhanced efficiency and sustainability
作者：Ma, Qingfen;Feng, Xin;Li, Jingru;Wu, Zhongye;Luo, Hongfeng;Wang, Shenghui;Huang, Jie;Lu, Hui;Wang, Chengpeng;Wang, Shenghui;Mahian, Omid
关键词：Ocean thermal energy conversion; Zeotropic Rankine cycle; Direct contact membrane distillation; Water and power cogeneration
-
Rubber Plantation Age Affects Soil Aggregate Stability, Organic Carbon, and Nitrogen Distribution in Hainan Island, China
作者：Xue, Xinxin;Cha, Zhengzao;Luo, Xuehua;Ren, Changqi;Wang, Wenbin;Wang, Dapeng;Zhao, Chunmei;Zhang, Yongfa;Xue, Xinxin;Xue, Xinxin;Cha, Zhengzao;Luo, Xuehua;Ren, Changqi;Wang, Wenbin;Wang, Dapeng;Zhao, Chunmei;Zhang, Yongfa;Wei, Yunxia
关键词：Aggregate fractions and stability; Rubber plantation age; SOC sequestration; Soil rehabilitation
-
Numerical analyses on the feasibility of TC type nozzles in ocean thermal energy Conversion turbines
作者：Ma, Qingfen;Huang, Jie;Luo, Hongfeng;Li, Jingru;Wu, Zhongye;Feng, Xin;Lu, Hui;Ma, Qingfen
关键词：Ocean thermal energy conversion; organic rankine cycle; radial turbine; nozzle profile; off-design
-
A first-year maize/cassava relay intercropping system improves soil nutrients and changes the soil microbial community in the symbiotic period
作者：He, Cuicui;Zhou, Bin;Wang, Hua;Wei, Yunxia;Huang, Jie;Zhou, Bin
关键词：relay intercropping system; maize; cassava; soil nutrients; microbial community; rhizosphere; non-rhizosphere
