Fertilizer-N recovery links to SOC stabilization and fractionation in straw-mulched soil: Insights from 15N-tracing and 13C natural abundance

Cong Xu; Ziqi Yang; Jing Wang; Roland Bol; Weijie Li; Cheng Ji; Jie Yuan; Lei Wang; Dong Liang; Hanshen Zhu; Jidong Wang; Yongchun Zhang; Yuchun Ai

doi:10.1016/j.jia.2025.12.046

Fertilizer-N recovery links to SOC stabilization and fractionation in straw-mulched soil: Insights from 15N-tracing and 13C natural abundance

Cong Xu
, Ziqi Yang
, Jing Wang
, Roland Bol
, Weijie Li
, Cheng Ji
, Jie Yuan
, Lei Wang
, Dong Liang
, Hanshen Zhu
, Jidong Wang
, Yongchun Zhang
, Yuchun Ai

Ysgol Gwyddorau Amgylcheddol a Naturiol

Jiangsu Academy of Agricultural Sciences
Nanjing Forestry University

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

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While straw mulching has the potential to reduce fertilizer-nitrogen (N) losses in intensively managed cropland, how soil organic carbon (SOC) regulates this fate of fertilizer-N at soil aggregate or profile scales remains unresolved. Here, micro-plots were nested within a four-year field experiment to assess fertilizer-N fates and their linkages with SOC fractions and stabilization processes via 15N-tracing and 13C natural abundance analyses. Three treatments were included: (i) conventional N application (FN), (ii) reduced N application (RN), and (iii) reduced N with straw mulching (RS). While RN reduced crop yields compared to FN, RS achieved comparable yields and 7.71% higher N recovery efficiency (P2 mm and

Iaith wreiddiol	Saesneg
Cyfnodolyn	Journal of Integrative Agriculture
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1016/j.jia.2025.12.046
Statws	E-gyhoeddi cyn argraffu - 26 Rhag 2025

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10.1016/j.jia.2025.12.046Trwydded: CC BY

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Xu, C., Yang, Z., Wang, J., Bol, R., Li, W., Ji, C., Yuan, J., Wang, L., Liang, D., Zhu, H., Wang, J., Zhang, Y., & Ai, Y. (2025). Fertilizer-N recovery links to SOC stabilization and fractionation in straw-mulched soil: Insights from 15N-tracing and 13C natural abundance. Journal of Integrative Agriculture. Cyhoeddiad ar-lein ymlaen llaw. https://doi.org/10.1016/j.jia.2025.12.046

@article{db9fca87e619437aa121f8ea16b67091,

title = "Fertilizer-N recovery links to SOC stabilization and fractionation in straw-mulched soil: Insights from 15N-tracing and 13C natural abundance",

abstract = "While straw mulching has the potential to reduce fertilizer-nitrogen (N) losses in intensively managed cropland, how soil organic carbon (SOC) regulates this fate of fertilizer-N at soil aggregate or profile scales remains unresolved. Here, micro-plots were nested within a four-year field experiment to assess fertilizer-N fates and their linkages with SOC fractions and stabilization processes via 15N-tracing and 13C natural abundance analyses. Three treatments were included: (i) conventional N application (FN), (ii) reduced N application (RN), and (iii) reduced N with straw mulching (RS). While RN reduced crop yields compared to FN, RS achieved comparable yields and 7.71\% higher N recovery efficiency (P2 mm and",

author = "Cong Xu and Ziqi Yang and Jing Wang and Roland Bol and Weijie Li and Cheng Ji and Jie Yuan and Lei Wang and Dong Liang and Hanshen Zhu and Jidong Wang and Yongchun Zhang and Yuchun Ai",

year = "2025",

month = dec,

day = "26",

doi = "10.1016/j.jia.2025.12.046",

language = "English",

journal = "Journal of Integrative Agriculture",

issn = "2095-3119",

publisher = "KeAi Publishing Communications Ltd.",

}

TY - JOUR

T1 - Fertilizer-N recovery links to SOC stabilization and fractionation in straw-mulched soil: Insights from 15N-tracing and 13C natural abundance

AU - Xu, Cong

AU - Yang, Ziqi

AU - Wang, Jing

AU - Bol, Roland

AU - Li, Weijie

AU - Ji, Cheng

AU - Yuan, Jie

AU - Wang, Lei

AU - Liang, Dong

AU - Zhu, Hanshen

AU - Wang, Jidong

AU - Zhang, Yongchun

AU - Ai, Yuchun

PY - 2025/12/26

Y1 - 2025/12/26

N2 - While straw mulching has the potential to reduce fertilizer-nitrogen (N) losses in intensively managed cropland, how soil organic carbon (SOC) regulates this fate of fertilizer-N at soil aggregate or profile scales remains unresolved. Here, micro-plots were nested within a four-year field experiment to assess fertilizer-N fates and their linkages with SOC fractions and stabilization processes via 15N-tracing and 13C natural abundance analyses. Three treatments were included: (i) conventional N application (FN), (ii) reduced N application (RN), and (iii) reduced N with straw mulching (RS). While RN reduced crop yields compared to FN, RS achieved comparable yields and 7.71% higher N recovery efficiency (P2 mm and

AB - While straw mulching has the potential to reduce fertilizer-nitrogen (N) losses in intensively managed cropland, how soil organic carbon (SOC) regulates this fate of fertilizer-N at soil aggregate or profile scales remains unresolved. Here, micro-plots were nested within a four-year field experiment to assess fertilizer-N fates and their linkages with SOC fractions and stabilization processes via 15N-tracing and 13C natural abundance analyses. Three treatments were included: (i) conventional N application (FN), (ii) reduced N application (RN), and (iii) reduced N with straw mulching (RS). While RN reduced crop yields compared to FN, RS achieved comparable yields and 7.71% higher N recovery efficiency (P2 mm and

U2 - 10.1016/j.jia.2025.12.046

DO - 10.1016/j.jia.2025.12.046

M3 - Article

SN - 2095-3119

JO - Journal of Integrative Agriculture

JF - Journal of Integrative Agriculture

ER -

Fertilizer-N recovery links to SOC stabilization and fractionation in straw-mulched soil: Insights from 15N-tracing and 13C natural abundance

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