Nitrogen uptake and utilization of two maize hybrids with contrasting nitrogen use efficiencies depending on fertilization amount

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Guodong Shao
  • Hao Cheng
  • Hongcui Dai
  • Hui Zhang
  • Juanjuan Ai
  • Kaichang Liu
  • Zongxin Li
  • Kazem Zamanian
  • Xin Qian

Research Organisations

External Research Organisations

  • Shandong Academy of Agricultural Sciences
  • National Engineering Laboratory for Wheat and Maize
  • University of Tübingen
  • Nanjing University of Information Science and Technology
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Details

Original languageEnglish
Pages (from-to)2202-2217
Number of pages16
JournalArchives of Agronomy and Soil Science
Volume69
Issue number11
Early online date3 Nov 2022
Publication statusPublished - 2023

Abstract

Splitting nitrogen (N) application is beneficial for achieving higher grain yields and N use efficiency (NUE), but the responses of N utilization efficiency of different maize cultivars to top-dressing N fertilizer rates are still unclear. This study investigated the effects of fertilization managements on N uptake and utilization derived from topdressing fertilizers of maize hybrids (Ludan981 and Denghai605) with contrasting NUEs. The N fate derived from topdressing fertilizer was determined using the 15N tracing method. Grain yields, dry matter and N accumulation of both maize hybrids were significantly increased under low N levels but decreased under high N levels. Under N-deficient and excess conditions, Denghai605 had higher NUE than Ludan981. The N rates of topdressing significantly affected N uptake and utilization, but no difference was detected between two maize hybrids, and excessive N use led to higher rates of N loss and residual in soil. The N metabolism enzyme activities did not differ between the two maize hybrids. Our findings suggest optimized N management strategies by adjusting topdressing N application rate and timing are necessary to increase NUE and to minimize environmental costs in maize cropping system.

Keywords

    N recovery, Grain yield, nitrogen fate, nitrogen metabolism, topdressing

ASJC Scopus subject areas

Sustainable Development Goals

Cite this

Nitrogen uptake and utilization of two maize hybrids with contrasting nitrogen use efficiencies depending on fertilization amount. / Shao, Guodong; Cheng, Hao; Dai, Hongcui et al.
In: Archives of Agronomy and Soil Science, Vol. 69, No. 11, 2023, p. 2202-2217.

Research output: Contribution to journalArticleResearchpeer review

Shao G, Cheng H, Dai H, Zhang H, Ai J, Liu K et al. Nitrogen uptake and utilization of two maize hybrids with contrasting nitrogen use efficiencies depending on fertilization amount. Archives of Agronomy and Soil Science. 2023;69(11):2202-2217. Epub 2022 Nov 3. doi: 10.1080/03650340.2022.2142573
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abstract = "Splitting nitrogen (N) application is beneficial for achieving higher grain yields and N use efficiency (NUE), but the responses of N utilization efficiency of different maize cultivars to top-dressing N fertilizer rates are still unclear. This study investigated the effects of fertilization managements on N uptake and utilization derived from topdressing fertilizers of maize hybrids (Ludan981 and Denghai605) with contrasting NUEs. The N fate derived from topdressing fertilizer was determined using the 15N tracing method. Grain yields, dry matter and N accumulation of both maize hybrids were significantly increased under low N levels but decreased under high N levels. Under N-deficient and excess conditions, Denghai605 had higher NUE than Ludan981. The N rates of topdressing significantly affected N uptake and utilization, but no difference was detected between two maize hybrids, and excessive N use led to higher rates of N loss and residual in soil. The N metabolism enzyme activities did not differ between the two maize hybrids. Our findings suggest optimized N management strategies by adjusting topdressing N application rate and timing are necessary to increase NUE and to minimize environmental costs in maize cropping system.",
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AU - Shao, Guodong

AU - Cheng, Hao

AU - Dai, Hongcui

AU - Zhang, Hui

AU - Ai, Juanjuan

AU - Liu, Kaichang

AU - Li, Zongxin

AU - Zamanian, Kazem

AU - Qian, Xin

N1 - Funding Information: This research was supported the Modern Agricultural Technology System Innovation Team Project of Shandong Province, China [SDAIT-02-07]; the Natural Science Foundation of Shandong Province, China [ZR2021QC121]; the Young Talent of Lifting engineering for Science and Technology in Shandong, China [SDAST2021qt04]; and the Research Fund for International Young Scientists of National Natural Science Foundation of China [42050410320].

PY - 2023

Y1 - 2023

N2 - Splitting nitrogen (N) application is beneficial for achieving higher grain yields and N use efficiency (NUE), but the responses of N utilization efficiency of different maize cultivars to top-dressing N fertilizer rates are still unclear. This study investigated the effects of fertilization managements on N uptake and utilization derived from topdressing fertilizers of maize hybrids (Ludan981 and Denghai605) with contrasting NUEs. The N fate derived from topdressing fertilizer was determined using the 15N tracing method. Grain yields, dry matter and N accumulation of both maize hybrids were significantly increased under low N levels but decreased under high N levels. Under N-deficient and excess conditions, Denghai605 had higher NUE than Ludan981. The N rates of topdressing significantly affected N uptake and utilization, but no difference was detected between two maize hybrids, and excessive N use led to higher rates of N loss and residual in soil. The N metabolism enzyme activities did not differ between the two maize hybrids. Our findings suggest optimized N management strategies by adjusting topdressing N application rate and timing are necessary to increase NUE and to minimize environmental costs in maize cropping system.

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