Long-term nitrogen addition impact on agronomic traits, nitrogen uptake and nitrogen resorption efficiency of wheat in a rainfed region

Aixia Xu; Lingling Li; Jeffrey A. Coulter; Junhong Xie; Renzhi Zhang; Zhuzhu Luo; Liqun Cai; Chang Liu; Linlin Wang

doi:10.1002/saj2.20172

Long-term nitrogen addition impact on agronomic traits, nitrogen uptake and nitrogen resorption efficiency of wheat in a rainfed region

Aixia Xu, Lingling Li, Jeffrey A. Coulter, Junhong Xie, Renzhi Zhang, Zhuzhu Luo, Liqun Cai, Chang Liu, Linlin Wang

Agronomy and Plant Genetics

Research output: Contribution to journal › Article › peer-review

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Abstract

Nitrogen (N) fertilizer management is one of the most important issues in wheat (Triticum aestivum L.) production. To explore the mechanism of N uptake efficiency (NupE) and N resorption efficiency (NRE) in wheat, this study examined the effects of different N fertilizer application rates (0, 52.5, 105, 157.5, 157.5, and 210 kg N ha⁻¹ yr⁻¹) on crop growth parameters, NupE, NRE, and N use efficiency (NUE). The results of the 2-yr (2018 and 2019) study showed that the growth of crops was enhanced in high-N treatments, resulting in higher N concentration in wheat tissues. The 105 kg N ha⁻¹ treatment (N105) was the best rate for improving spring wheat yield and NUE, ensuring the highest values of N uptake, evapotranspiration, and leaf NRE. Compared with the non-N-fertilized control, N105 increased grain yield and N uptake by 46.90 and 90.54%, respectively; thus, N105 had 16.40% higher NUE, 28.33% higher N utilization efficiency (NutE), and 0.58 kg kg⁻¹ greater NupE. Therefore, N uptake and N resorption are of great importance for increasing NUE of wheat, and for improving the sustainability of wheat production in the semi-arid Loess Plateau of China.

Original language	English (US)
Pages (from-to)	452-467
Number of pages	16
Journal	Soil Science Society of America Journal
Volume	85
Issue number	2
DOIs	https://doi.org/10.1002/saj2.20172
State	Published - Mar 1 2021

Bibliographical note

Funding Information:
This research was supported by the National Natural Science Foundation of China (31660373 and 31761143004), the Education Department of Gansu Province (2017C‐12), and the Department of Science and Technology of Gansu Province (GSPT‐2018‐56). We appreciate assistance in the field and laboratory by students of the Rainfed Agricultural Experimental Station of Gansu Agricultural University.

Funding Information:
This research was supported by the National Natural Science Foundation of China (31660373 and 31761143004), the Education Department of Gansu Province (2017C-12), and the Department of Science and Technology of Gansu Province (GSPT-2018-56). We appreciate assistance in the field and laboratory by students of the Rainfed Agricultural Experimental Station of Gansu Agricultural University.

Publisher Copyright:
© 2020 The Authors. Soil Science Society of America Journal © 2020 Soil Science Society of America

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title = "Long-term nitrogen addition impact on agronomic traits, nitrogen uptake and nitrogen resorption efficiency of wheat in a rainfed region",

abstract = "Nitrogen (N) fertilizer management is one of the most important issues in wheat (Triticum aestivum L.) production. To explore the mechanism of N uptake efficiency (NupE) and N resorption efficiency (NRE) in wheat, this study examined the effects of different N fertilizer application rates (0, 52.5, 105, 157.5, 157.5, and 210 kg N ha−1 yr−1) on crop growth parameters, NupE, NRE, and N use efficiency (NUE). The results of the 2-yr (2018 and 2019) study showed that the growth of crops was enhanced in high-N treatments, resulting in higher N concentration in wheat tissues. The 105 kg N ha−1 treatment (N105) was the best rate for improving spring wheat yield and NUE, ensuring the highest values of N uptake, evapotranspiration, and leaf NRE. Compared with the non-N-fertilized control, N105 increased grain yield and N uptake by 46.90 and 90.54%, respectively; thus, N105 had 16.40% higher NUE, 28.33% higher N utilization efficiency (NutE), and 0.58 kg kg−1 greater NupE. Therefore, N uptake and N resorption are of great importance for increasing NUE of wheat, and for improving the sustainability of wheat production in the semi-arid Loess Plateau of China.",

author = "Aixia Xu and Lingling Li and Coulter, {Jeffrey A.} and Junhong Xie and Renzhi Zhang and Zhuzhu Luo and Liqun Cai and Chang Liu and Linlin Wang",

note = "Funding Information: This research was supported by the National Natural Science Foundation of China (31660373 and 31761143004), the Education Department of Gansu Province (2017C‐12), and the Department of Science and Technology of Gansu Province (GSPT‐2018‐56). We appreciate assistance in the field and laboratory by students of the Rainfed Agricultural Experimental Station of Gansu Agricultural University. Funding Information: This research was supported by the National Natural Science Foundation of China (31660373 and 31761143004), the Education Department of Gansu Province (2017C-12), and the Department of Science and Technology of Gansu Province (GSPT-2018-56). We appreciate assistance in the field and laboratory by students of the Rainfed Agricultural Experimental Station of Gansu Agricultural University. Publisher Copyright: {\textcopyright} 2020 The Authors. Soil Science Society of America Journal {\textcopyright} 2020 Soil Science Society of America",

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AU - Xu, Aixia

AU - Li, Lingling

AU - Coulter, Jeffrey A.

AU - Xie, Junhong

AU - Zhang, Renzhi

AU - Luo, Zhuzhu

AU - Cai, Liqun

AU - Liu, Chang

AU - Wang, Linlin

N1 - Funding Information: This research was supported by the National Natural Science Foundation of China (31660373 and 31761143004), the Education Department of Gansu Province (2017C‐12), and the Department of Science and Technology of Gansu Province (GSPT‐2018‐56). We appreciate assistance in the field and laboratory by students of the Rainfed Agricultural Experimental Station of Gansu Agricultural University. Funding Information: This research was supported by the National Natural Science Foundation of China (31660373 and 31761143004), the Education Department of Gansu Province (2017C-12), and the Department of Science and Technology of Gansu Province (GSPT-2018-56). We appreciate assistance in the field and laboratory by students of the Rainfed Agricultural Experimental Station of Gansu Agricultural University. Publisher Copyright: © 2020 The Authors. Soil Science Society of America Journal © 2020 Soil Science Society of America

PY - 2021/3/1

Y1 - 2021/3/1

N2 - Nitrogen (N) fertilizer management is one of the most important issues in wheat (Triticum aestivum L.) production. To explore the mechanism of N uptake efficiency (NupE) and N resorption efficiency (NRE) in wheat, this study examined the effects of different N fertilizer application rates (0, 52.5, 105, 157.5, 157.5, and 210 kg N ha−1 yr−1) on crop growth parameters, NupE, NRE, and N use efficiency (NUE). The results of the 2-yr (2018 and 2019) study showed that the growth of crops was enhanced in high-N treatments, resulting in higher N concentration in wheat tissues. The 105 kg N ha−1 treatment (N105) was the best rate for improving spring wheat yield and NUE, ensuring the highest values of N uptake, evapotranspiration, and leaf NRE. Compared with the non-N-fertilized control, N105 increased grain yield and N uptake by 46.90 and 90.54%, respectively; thus, N105 had 16.40% higher NUE, 28.33% higher N utilization efficiency (NutE), and 0.58 kg kg−1 greater NupE. Therefore, N uptake and N resorption are of great importance for increasing NUE of wheat, and for improving the sustainability of wheat production in the semi-arid Loess Plateau of China.

AB - Nitrogen (N) fertilizer management is one of the most important issues in wheat (Triticum aestivum L.) production. To explore the mechanism of N uptake efficiency (NupE) and N resorption efficiency (NRE) in wheat, this study examined the effects of different N fertilizer application rates (0, 52.5, 105, 157.5, 157.5, and 210 kg N ha−1 yr−1) on crop growth parameters, NupE, NRE, and N use efficiency (NUE). The results of the 2-yr (2018 and 2019) study showed that the growth of crops was enhanced in high-N treatments, resulting in higher N concentration in wheat tissues. The 105 kg N ha−1 treatment (N105) was the best rate for improving spring wheat yield and NUE, ensuring the highest values of N uptake, evapotranspiration, and leaf NRE. Compared with the non-N-fertilized control, N105 increased grain yield and N uptake by 46.90 and 90.54%, respectively; thus, N105 had 16.40% higher NUE, 28.33% higher N utilization efficiency (NutE), and 0.58 kg kg−1 greater NupE. Therefore, N uptake and N resorption are of great importance for increasing NUE of wheat, and for improving the sustainability of wheat production in the semi-arid Loess Plateau of China.

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Long-term nitrogen addition impact on agronomic traits, nitrogen uptake and nitrogen resorption efficiency of wheat in a rainfed region

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