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. 2024 Sep 11;15:1402677. doi: 10.3389/fpls.2024.1402677

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Copyright © 2024 Gai, Chen, Sun, Chen, Yang, Ren, Liu, Wang, Zheng and Tang

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) and the copyright owner(s) 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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The nitrogen (N), carbon (C) content, and C/N of stubble under different mowing period and stubble heights in 2021 and 2022. Different lowercase letters denote statistical differences among four nitrogen treatments according to LSD test (0.05). Data are mean ± standard error. T10H10, Cut 10 days after heading in the first season and leave stubble height of 10 cm; T10H30, Cut 10 days after heading in the first season and leave stubble height of 30 cm; T30H10, Cut 30 days after heading in the first season and leave stubble height of 10 cm; T30H30, Cut 30 days after heading in the first season and leave stubble height of 30 cm. ** indicates significant effect at 0.01 level and ns indicates no significant effect.