Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain

Abstract Excessive nitrogen (N) input and irrigation exacerbate N leaching in winter wheat production in the North China Plain (NCP). To explore the optimal N for better N remobilization and higher N utilization of wheat under water-saving irrigation will be conductive to less environmental contamin...

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Autores principales:	Xuejiao Zheng, Zhenwen Yu, Yongli Zhang, Yu Shi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5e98933a1d1244898e3b5a25dbff44b2
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spelling	oai:doaj.org-article:5e98933a1d1244898e3b5a25dbff44b22021-12-02T11:02:17ZNitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain10.1038/s41598-020-59877-52045-2322https://doaj.org/article/5e98933a1d1244898e3b5a25dbff44b22020-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-59877-5https://doaj.org/toc/2045-2322Abstract Excessive nitrogen (N) input and irrigation exacerbate N leaching in winter wheat production in the North China Plain (NCP). To explore the optimal N for better N remobilization and higher N utilization of wheat under water-saving irrigation will be conductive to less environmental contamination. A field experiment was conducted at 300 (N300), 240 (N240), 180 (N180), and 0 (N0) kg N ha−1 of N application under supplemental irrigation (SI) that brought the relative soil water content (RSWC) to 70% at jointing and 65% at anthesis. Compared with N0, N180 improved the free amino acid content in the flag leaf and grain after anthesis, dry matter and plant N accumulation at maturity, N translocation amount of vegetable organs and its contribution to grain from anthesis to maturity. Compared to N240 and N300, N180 increased the N translocation efficiency of vegetable organs, and reduced the soil NO3-N residue in the 60–180 cm soil layer, which contributing to no significant reduction in grain yield and grain protein yield, but higher grain N recovery efficiency (GREN), N recovery efficiency (REN), and N partial factor productivity (PFPN). Positive relationships were found between leaf N translocation efficiency and grain yield, grain protein yield, PFPN, GREN, and REN. Therefore, N180 is appropriate to obtain a steady grain yield over 7.5 t ha−1 for at least 2 years under SI based on RSWC in the NCP.Xuejiao ZhengZhenwen YuYongli ZhangYu ShiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xuejiao Zheng Zhenwen Yu Yongli Zhang Yu Shi Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain
description	Abstract Excessive nitrogen (N) input and irrigation exacerbate N leaching in winter wheat production in the North China Plain (NCP). To explore the optimal N for better N remobilization and higher N utilization of wheat under water-saving irrigation will be conductive to less environmental contamination. A field experiment was conducted at 300 (N300), 240 (N240), 180 (N180), and 0 (N0) kg N ha−1 of N application under supplemental irrigation (SI) that brought the relative soil water content (RSWC) to 70% at jointing and 65% at anthesis. Compared with N0, N180 improved the free amino acid content in the flag leaf and grain after anthesis, dry matter and plant N accumulation at maturity, N translocation amount of vegetable organs and its contribution to grain from anthesis to maturity. Compared to N240 and N300, N180 increased the N translocation efficiency of vegetable organs, and reduced the soil NO3-N residue in the 60–180 cm soil layer, which contributing to no significant reduction in grain yield and grain protein yield, but higher grain N recovery efficiency (GREN), N recovery efficiency (REN), and N partial factor productivity (PFPN). Positive relationships were found between leaf N translocation efficiency and grain yield, grain protein yield, PFPN, GREN, and REN. Therefore, N180 is appropriate to obtain a steady grain yield over 7.5 t ha−1 for at least 2 years under SI based on RSWC in the NCP.
format	article
author	Xuejiao Zheng Zhenwen Yu Yongli Zhang Yu Shi
author_facet	Xuejiao Zheng Zhenwen Yu Yongli Zhang Yu Shi
author_sort	Xuejiao Zheng
title	Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain
title_short	Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain
title_full	Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain
title_fullStr	Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain
title_full_unstemmed	Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain
title_sort	nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the north china plain
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/5e98933a1d1244898e3b5a25dbff44b2
work_keys_str_mv	AT xuejiaozheng nitrogensupplymodulatesnitrogenremobilizationandnitrogenuseofwheatundersupplementalirrigationinthenorthchinaplain AT zhenwenyu nitrogensupplymodulatesnitrogenremobilizationandnitrogenuseofwheatundersupplementalirrigationinthenorthchinaplain AT yonglizhang nitrogensupplymodulatesnitrogenremobilizationandnitrogenuseofwheatundersupplementalirrigationinthenorthchinaplain AT yushi nitrogensupplymodulatesnitrogenremobilizationandnitrogenuseofwheatundersupplementalirrigationinthenorthchinaplain
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Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under supplemental irrigation in the North China Plain

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