Soil potassium regulation by changes in potassium balance and iron and aluminum oxides in paddy soils subjected to long-term fertilization regimes
文献类型: 外文期刊
作者: Han, Tianfu 1 ; Huang, Jing 1 ; Liu, Kailou 1 ; Fan, Hongzhu 5 ; Shi, Xiaojun 6 ; Chen, Jin 7 ; Jiang, Xianjun 6 ; Liu, G 1 ;
作者机构: 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Engn Lab Improving Qual Arable Land, Beijing 100081, Peoples R China
2.China Agr Univ, Environm & Food Secur, Coll Resources & Environm Sci, Beijing 100081, Peoples R China
3.China Agr Univ, Ctr Resources, Beijing 100081, Peoples R China
4.Jiangxi Inst Red Soil, Natl Engn & Technol Res Ctr Red Soil Improvement, Jinxian 331717, Jiangxi, Peoples R China
5.Sichuan Acad Agr Sci, Soil & Fertilizer Res Inst, Chengdu 610066, Peoples R China
6.Southwest Univ, Coll Resources & Environm, Chongqing 400715, Peoples R China
7.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Jinxian 330200, Jiangxi, Peoples R China
8.Xinjiang Acad Agr Sci, Inst Soil Fertilizer & Agr Water Conservat, Urumqi 830091, Peoples R China
9.Henan Univ Sci & Technol, Coll Agr, Luoyang 471000, Peoples R China
关键词: Potassium balance; Iron and aluminum oxides; Long-term fertilization; Paddy soil
期刊名称:SOIL & TILLAGE RESEARCH ( 影响因子:5.374; 五年影响因子:6.368 )
ISSN: 0167-1987
年卷期: 2021 年 214 卷
页码:
收录情况: SCI
摘要: Southern China's paddy soils are poor in potassium (K) and rich in iron (Fe) and aluminum (Al) oxides, both of which are affected by fertilizer application. However, the response of soil K budget to long-term K fertilization and Fe and Al oxides remains unclear, especially in the subsurface horizons in different soil types. Here, four long-term fertilization treatments (no fertilizer, CK; inorganic nitrogen and phosphorus fertilizers, NP; NPK; and the combined NPK and manure, NPKM) were selected to determine the effects of K input and different forms of Fe and Al oxides on soil K status at two soil layers (0-20, surface; and 20-40 cm, subsurface) in red (Ferralsols) and purple (Cambisols) paddy soils across China. Overall, treatments where K fertilizer application was withheld had lower surface soil exchangeable K (EK), non-exchangeable K (NEK), and total K contents than treatments applied with K fertilizer. In contrast, the treatment including K with manure fertilizer increased EK and NEK contents. Regardless of fertilization regimes, the contents of EK and NEK in both soil depths of purple soil were significantly higher than those in their corresponding depths of red soil. Moreover, there were significantly lower EK and NEK contents in the subsurface layer than those in the surface layer of red soil, while no significant differences were observed in purple soil. A positive correlation was obtained between K balances and soil EK contents (P < 0.05) and the slopes of linear regressions in red soil was higher than that in purple soil. A threeway ANOVA showed that the lone and interactive effects of experimental site, fertilization regime, and soil depth significantly influenced the contents of Fe and Al oxides in both soils. The application of NPKM can inhibit the decrease of free Fe and Al oxides in the surface layer of soil and increase the amorphous and chelated Fe and Al oxides, especially in red soil. Redundancy analysis showed that the amorphous Fe and Al oxides were the most important factors for regulating surface soil EK content. The free and chelated oxides were the most important factors for regulating NEK contents in red and purple soils, respectively, particularly in subsurface soil. Our results imply that the combined application of inorganic fertilizer and manure is a viable strategy for improving soil K availability by increasing K balance and regulating the contents and forms of Fe and Al oxides in different depths of paddy soil.
- 相关文献
作者其他论文 更多>>
-
Detection of citrus diseases in complex backgrounds based on image-text multimodal fusion and knowledge assistance
作者:Qiu, Xia;Chen, Hongwen;Huang, Ping;Zhong, Dan;Guo, Tao;Pu, Changbin;Li, Zongnan;Liu, Yongling;Wang, Si;Qiu, Xia;Chen, Hongwen;Zhong, Dan;Guo, Tao;Pu, Changbin;Li, Zongnan;Wang, Si;Chen, Jin
关键词:citrus disease; deep learning; multimodal fusion; background diversity; knowledge assistance
-
Water extract of Fagopyrum dibotrys (D. Don) Hara straw increases selenium accumulation in peach seedlings under selenium-contaminated soil
作者:Li, Zhiyu;Xiao, Yunying;Zhou, Kexuan;Jin, Xin;Li, Wan;Li, Wanzhi;Zhang, Lu;Wang, Jin;Lin, Lijin;Hu, Rongping
关键词:Fagopyrum dibotrys (D. Don) Hara; peach; selenium; straw water extract
-
Integrated analysis of how gender and body weight affect the intestinal microbial diversity of Gymnocypris chilianensis
作者:Zhao, Zhongmeng;Zhao, Han;Zhang, Lu;Huang, Zhipeng;Ke, Hongyu;Liu, Ya;Duan, Yuanliang;Li, Huadong;Li, Qiang;Wang, Xiongyan
关键词:
-
Single-nuclei RNA-seq reveals skin cell responses to Aeromonas hydrophila infection in Chinese longsnout catfish Leiocassis longirostris
作者:Mou, Cheng-Yan;Zhang, Lu;Zhao, Han;Huang, Zhi-Peng;Duan, Yuan-Liang;Zhao, Zhong-Meng;Ke, Hong-Yu;Du, Jun;Li, Qiang;Zhou, Jian
关键词:single nuclei RNA-sequencing; fish skin cell; immune response; Aeromonas hydrophila; cell expansion
-
PacBio single-molecule long-read sequencing provides new insights into the complexity of full-length transcripts in oriental river prawn, macrobrachium nipponense
作者:Mou, Cheng-Yan;Li, Qiang;Huang, Zhi-Peng;Ke, Hong-Yu;Zhao, Han;Zhao, Zhong-Meng;Duan, Yuan-Liang;Li, Hua-Dong;Du, Jun;Zhou, Jian;Zhang, Lu;Xiao, Yu;Qian, Zhou-Ming
关键词:Long non-coding RNA; Novel genes; Alternative splicing; Alternative polyadenylation; SMRT sequencing; Oriental river prawn
-
Biocontrol and plant growth promotion potential of endophytic Bacillus subtilis JY-7-2L on Aconitum carmichaelii Debx.
作者:Zou, Lan;Wang, Qian;Wu, Rongxing;Zhang, Yaopeng;Wu, Qingshan;Li, Muyi;Huang, Jing;Ye, Kunhao;Dai, Wei
关键词:endophyte; Bacillus subtilis; biocontrol; southern blight; field trials; Aconitum carmichaelii Debx
-
Study on the Adaptive Regulation of Light on the Stress Response of Mandarin Fish (Siniperca chuatsi) with Re-Feeding after Starvation
作者:Zhou, Jian;Liang, Xufang;Zhou, Jian;Li, Qiang;Huang, Zhipeng;Zhang, Lu;Mou, Chengyan;Zhao, Zhongmeng;Zhao, Han;Du, Jun;Duan, Yuanliang;Yang, Xiaojun
关键词:Siniperca chuatsi; light; re-feeding behaviors; starvation; stress response