PMID- 32094371
OWN - NLM
STAT- MEDLINE
DCOM- 20201111
LR  - 20240328
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 10
IP  - 1
DP  - 2020 Feb 24
TI  - Nitrogen supply modulates nitrogen remobilization and nitrogen use of wheat under 
      supplemental irrigation in the North China Plain.
PG  - 3305
LID - 10.1038/s41598-020-59877-5 [doi]
LID - 3305
AB  - 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 (N(300)), 240 (N(240)), 180 (N(180)), and 0 (N(0)) 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 
      N(0), N(180) 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 N(240) and N(300), N(180) increased the N translocation 
      efficiency of vegetable organs, and reduced the soil NO(3)-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 ((G)RE(N)), 
      N recovery efficiency (RE(N)), and N partial factor productivity (PFP(N)). 
      Positive relationships were found between leaf N translocation efficiency and 
      grain yield, grain protein yield, PFP(N), (G)RE(N), and RE(N). Therefore, N(180) 
      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.
FAU - Zheng, Xuejiao
AU  - Zheng X
AD  - Key Laboratory of Crop Ecophysiology and Farming System, Ministry of Agriculture, 
      Shandong Agricultural University, Tai-an, 271018, Shandong, China.
FAU - Yu, Zhenwen
AU  - Yu Z
AD  - Key Laboratory of Crop Ecophysiology and Farming System, Ministry of Agriculture, 
      Shandong Agricultural University, Tai-an, 271018, Shandong, China.
FAU - Zhang, Yongli
AU  - Zhang Y
AD  - Key Laboratory of Crop Ecophysiology and Farming System, Ministry of Agriculture, 
      Shandong Agricultural University, Tai-an, 271018, Shandong, China. 
      zhangyl@sdau.edu.cn.
FAU - Shi, Yu
AU  - Shi Y
AD  - Key Laboratory of Crop Ecophysiology and Farming System, Ministry of Agriculture, 
      Shandong Agricultural University, Tai-an, 271018, Shandong, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20200224
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
RN  - 0 (Amino Acids)
RN  - 0 (Nitrates)
RN  - 0 (Soil)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - *Agricultural Irrigation
MH  - Amino Acids/analysis
MH  - Biomass
MH  - China
MH  - Nitrates/metabolism
MH  - Nitrogen/*pharmacology
MH  - Organ Specificity/drug effects
MH  - Plant Leaves/chemistry
MH  - Soil/chemistry
MH  - Triticum/drug effects/growth & development/*physiology
PMC - PMC7039916
COIS- The authors declare no competing interests.
EDAT- 2020/02/26 06:00
MHDA- 2020/11/12 06:00
PMCR- 2020/02/24
CRDT- 2020/02/26 06:00
PHST- 2019/11/28 00:00 [received]
PHST- 2020/02/03 00:00 [accepted]
PHST- 2020/02/26 06:00 [entrez]
PHST- 2020/02/26 06:00 [pubmed]
PHST- 2020/11/12 06:00 [medline]
PHST- 2020/02/24 00:00 [pmc-release]
AID - 10.1038/s41598-020-59877-5 [pii]
AID - 59877 [pii]
AID - 10.1038/s41598-020-59877-5 [doi]
PST - epublish
SO  - Sci Rep. 2020 Feb 24;10(1):3305. doi: 10.1038/s41598-020-59877-5.