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Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures
The objective was to determine soil properties, and shoot nutrients and nutrient resorption of typical Eurasian steppe species Leymus chinensis in various legume mixtures (legume abundance was 0, 25, 50, and 75%). Mixtures with 25 or 50% legume significantly increased soil moisture and soil [N, P] a...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6199973/ https://www.ncbi.nlm.nih.gov/pubmed/30386354 http://dx.doi.org/10.3389/fpls.2018.01483 |
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author | Li, Qiang Chen, Xiaoying Zhou, Daowei |
author_facet | Li, Qiang Chen, Xiaoying Zhou, Daowei |
author_sort | Li, Qiang |
collection | PubMed |
description | The objective was to determine soil properties, and shoot nutrients and nutrient resorption of typical Eurasian steppe species Leymus chinensis in various legume mixtures (legume abundance was 0, 25, 50, and 75%). Mixtures with 25 or 50% legume significantly increased soil moisture and soil [N, P] availabilities. Increasing legume abundance enhanced stem and total biomass of green L. chinensis shoots, further enhanced the proportion of stem biomass by 14–24% in senesced L. chinensis shoots. Legume mixtures, especially 50% legume, enhanced green and senesced organs N concentrations and N pools of L. chinensis. Similarly, mixtures with 25 or 50% legume enhanced P concentration and pool of senesced L. chinensis shoots, whereas both were decreased by 75% legume. As legume abundance increased, contribution ratios of stem to total N and P pools of senesced chinensis shoots increased from 25 to 32 and 25 to 33%, respectively. Mixtures, especially 25 or 50% legume, decreased N and P resorption efficiency (NRE) of L. chinensis shoots, whereas 75% legume increased PRE of L. chinensis. Total resorbed nutrients may remain stable under varying soil conditions for L. chinensis, and resorption of nutrients was symmetric between leaf and stem. In conclusion, legume abundance affected nutrient uptake and return of grass in mixed grasslands, but high legume abundance meant no low N resorption and high litter N content of grass. Furthermore, with increasing legume abundance, stems had more important roles in driving plant production, nutrient utilization, and nutrient return of L. chinensis. |
format | Online Article Text |
id | pubmed-6199973 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-61999732018-11-01 Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures Li, Qiang Chen, Xiaoying Zhou, Daowei Front Plant Sci Plant Science The objective was to determine soil properties, and shoot nutrients and nutrient resorption of typical Eurasian steppe species Leymus chinensis in various legume mixtures (legume abundance was 0, 25, 50, and 75%). Mixtures with 25 or 50% legume significantly increased soil moisture and soil [N, P] availabilities. Increasing legume abundance enhanced stem and total biomass of green L. chinensis shoots, further enhanced the proportion of stem biomass by 14–24% in senesced L. chinensis shoots. Legume mixtures, especially 50% legume, enhanced green and senesced organs N concentrations and N pools of L. chinensis. Similarly, mixtures with 25 or 50% legume enhanced P concentration and pool of senesced L. chinensis shoots, whereas both were decreased by 75% legume. As legume abundance increased, contribution ratios of stem to total N and P pools of senesced chinensis shoots increased from 25 to 32 and 25 to 33%, respectively. Mixtures, especially 25 or 50% legume, decreased N and P resorption efficiency (NRE) of L. chinensis shoots, whereas 75% legume increased PRE of L. chinensis. Total resorbed nutrients may remain stable under varying soil conditions for L. chinensis, and resorption of nutrients was symmetric between leaf and stem. In conclusion, legume abundance affected nutrient uptake and return of grass in mixed grasslands, but high legume abundance meant no low N resorption and high litter N content of grass. Furthermore, with increasing legume abundance, stems had more important roles in driving plant production, nutrient utilization, and nutrient return of L. chinensis. Frontiers Media S.A. 2018-10-17 /pmc/articles/PMC6199973/ /pubmed/30386354 http://dx.doi.org/10.3389/fpls.2018.01483 Text en Copyright © 2018 Li, Chen and Zhou. http://creativecommons.org/licenses/by/4.0/ 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. |
spellingShingle | Plant Science Li, Qiang Chen, Xiaoying Zhou, Daowei Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures |
title | Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures |
title_full | Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures |
title_fullStr | Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures |
title_full_unstemmed | Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures |
title_short | Shoot Nutrient Content and Nutrient Resorption of Leymus chinensis in Various Legume Mixtures |
title_sort | shoot nutrient content and nutrient resorption of leymus chinensis in various legume mixtures |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6199973/ https://www.ncbi.nlm.nih.gov/pubmed/30386354 http://dx.doi.org/10.3389/fpls.2018.01483 |
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