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. 2016 Jul 15;7:1024. doi: 10.3389/fpls.2016.01024

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Copyright © 2016 Wu, Yuan, Huang, Sun, Zhu, Li, Fahad, Peng and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Correlation between total N uptake at maturity and grain yield (A), NUEg and grain yield (B), biomass at maturity and total N uptake (C), and harvest index (HI) and NUEg (D).