KMS Institute of soil and water conservation Chinese Academy of Sciences
| Accumulation of N and P in the Legume Lespedeza davurica in Controlled Mixtures with the Grass Bothriochloa ischaemum under Varying Water and Fertilization Conditions | |
| Xu, Bingcheng1,2; Xu, Weizhou1,2; Wang, Zhi1,2; Chen, Zhifei1,2; Palta, Jairo A.5,6; Chen, Yinglong1,2; Xu, BC; Chen, YL (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China.; Chen, YL (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling, Peoples R China.; Chen, YL (reprint author), Minist Water Resources, Yangling, Peoples R China.; Chen, YL (reprint author), Univ Western Australia, Inst Agr, Sch Agr & Environm, Perth, WA, Australia. | |
| 文章类型 | Article |
| 2018 | |
| 发表期刊 | FRONTIERS IN PLANT SCIENCE
 |
| ISSN | 1664-462X |
| 通讯作者邮箱 | bcxu@ms.iswc.ac.cn ; yinglongchen@hotmail.com |
| 卷号 | 9 |
| 摘要 | Water and fertilizers affect the nitrogen (N) and phosphorus (P) acquisition and allocation among organs in dominant species in natural vegetation on the semiarid Loess Plateau. This study aimed to clarify the N and P accumulation and N: P ratio at organ and plant level of a local legume species mixed with a grass species under varying water and fertilizer supplies, and thus to fully understand the requirements and balance of nutrient elements in response to growth conditions change of native species. The N and P concentration in the organ (leaf, stem, and root) and plant level of Lespedeza davurica (C-3 legume), were examined when intercropped with Bothriochloa ischaemum (C-4 grass). The two species were grown outdoors in pots under 80, 60, and 40% of soil water field capacity (FC), NP, C N, C P, and C NP supply and the grass: legume mixture ratios of 2: 10, 4: 8, 6: 6, 8: 4, 10: 2, and 12: 0. The three set of treatments were under a randomized complete block design. Intercropping with B. ischaemum did not affect N concentrations in leaf, stem and root of L. davurica, but reduced P concentration in each organ under P fertilization. Only leaf N concentration in L. davurica showed decreasing trend as soil water content decreased under all fertilization and mixture proportion treatments. Stems had the lowest, while roots had the highest N and P concentration. As the mixture proportion of L. davurica decreased under P fertilization, P concentration in leaf and root also decreased. The N concentration in L. davurica at the whole plant level was 11.1-17.2%. P fertilization improved P concentration, while decreased N: P ratio in L. davurica. The N: P ratios were less than 14.0 under C P and C NP treatments. Our results implied that exogenous N and P fertilizer application may change the N: P stoichiometry and influence the balance between nutrients and organs of native dominant species in natural grassland, and P element should be paid more attention when considering rehabilitating degraded grassland via fertilization application in semiarid Loess Plateau region. |
| 关键词 | Intercropping Mixture Proportion Soil Water n: p Ratio p Fertilization |
| 学科领域 | Plant Sciences |
| DOI | 10.3389/fpls.2018.00165 |
| 收录类别 | SCI |
| 出版地 | PO BOX 110, EPFL INNOVATION PARK, BUILDING I, LAUSANNE, 1015, SWITZERLAND |
| 语种 | 英语 |
| WOS记录号 | WOS:000424894200001 |
| 出版者 | FRONTIERS MEDIA SA |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | sbir.nwafu.edu.cn/handle/361005/7842 |
| 专题 | 水保所科研产出--SCI_2018--SCI |
| 通讯作者 | Xu, BC; Chen, YL (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China.; Chen, YL (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling, Peoples R China.; Chen, YL (reprint author), Minist Water Resources, Yangling, Peoples R China.; Chen, YL (reprint author), Univ Western Australia, Inst Agr, Sch Agr & Environm, Perth, WA, Australia. |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China 2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling, Peoples R China 3.Minist Water Resources, Yangling, Peoples R China 4.Yulin Univ, Sch Life Sci, Yulin, Peoples R China 5.CSIRO Agr & Food, Wembley, WA, Australia 6.Univ Western Australia, Inst Agr, Sch Agr & Environm, Perth, WA, Australia |
| 推荐引用方式 GB/T 7714 | Xu, Bingcheng,Xu, Weizhou,Wang, Zhi,et al. Accumulation of N and P in the Legume Lespedeza davurica in Controlled Mixtures with the Grass Bothriochloa ischaemum under Varying Water and Fertilization Conditions[J]. FRONTIERS IN PLANT SCIENCE,2018,9. |
| APA | Xu, Bingcheng.,Xu, Weizhou.,Wang, Zhi.,Chen, Zhifei.,Palta, Jairo A..,...&Chen, YL .(2018).Accumulation of N and P in the Legume Lespedeza davurica in Controlled Mixtures with the Grass Bothriochloa ischaemum under Varying Water and Fertilization Conditions.FRONTIERS IN PLANT SCIENCE,9. |
| MLA | Xu, Bingcheng,et al."Accumulation of N and P in the Legume Lespedeza davurica in Controlled Mixtures with the Grass Bothriochloa ischaemum under Varying Water and Fertilization Conditions".FRONTIERS IN PLANT SCIENCE 9(2018). |
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| 17（2018.3.16）.pdf（2923KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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