干旱区生态环境知识资源中心(Arid): Effects of N and P addition on nutrient and stoichiometry of rhizosphere and non-rhizosphere soils of alfalfa in alkaline soil

Arid

DOI	10.1038/s41598-023-39030-8
	Effects of N and P addition on nutrient and stoichiometry of rhizosphere and non-rhizosphere soils of alfalfa in alkaline soil
	Gu, Xudong; Zhang, Fengju; Xie, Xiaowei; Cheng, Yunlong; Xu, Xing
通讯作者	Xu, X
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2023
卷号	13 期号:1
英文摘要	Nitrogen (N) and phosphorus (P) are important nutrients for plant growth and development. Soil alkalization is one of the main obstacles limiting the sustainable development of agriculture. Northern Ningxia is located in the arid and semi-arid region, with serious soil alkalinization. Alfalfa has the advantages of strong saline-alkali tolerance, high yield, high quality, and wide adaptability. It is an important forage for the comprehensive improvement and rational utilization of saline-alkali land and has great significance for solving land resource shortages, improving the ecological environment, and ensuring food security. It is important to study soil organic carbon (SOC), total N (TN), total P (TP), and stoichiometry of the rhizosphere and non-rhizosphere of alfalfa in alkaline soils. Therefore, N and P were added to the alkaline alfalfa field in the Yinchuan Plain of Hetao Basin in our experiment. Six treatments were set up, i.e., N-free (WN), medium N (MN) for 90 kg/hm(2), high N (HN) for 180 kg/hm(2), P-free (WP), medium P (MP) for 135 kg/hm(2), and high P (HP) for 270 kg/hm(2). The results are as follows: The N addition promotes SOC and TN but inhibits TP, and P addition promotes SOC and TP but inhibits TN of three soil layers. The N addition decreases C/N but increases C/P and N/P, while the P addition increases C/N but decreases C/P and N/P of three soil layers. The SOC, TN, TP, C/N, C/P, and N/P under HN and HP treatment reach the significance level (P < 0.05). Appropriate additions of N and P can improve rhizosphere and non-rhizosphere nutrients and stoichiometric structure, facilitating absorption and utilization by alfalfa and improve the production potential of alfalfa in alkaline soil.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001038693100013
WOS关键词	ENZYME-ACTIVITIES ; MEDICAGO-SATIVA ; PHOSPHORUS ; NITROGEN ; ACIDIFICATION ; WATER
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398619
推荐引用方式 GB/T 7714	Gu, Xudong,Zhang, Fengju,Xie, Xiaowei,et al. Effects of N and P addition on nutrient and stoichiometry of rhizosphere and non-rhizosphere soils of alfalfa in alkaline soil[J],2023,13(1).
APA	Gu, Xudong,Zhang, Fengju,Xie, Xiaowei,Cheng, Yunlong,&Xu, Xing.(2023).Effects of N and P addition on nutrient and stoichiometry of rhizosphere and non-rhizosphere soils of alfalfa in alkaline soil.SCIENTIFIC REPORTS,13(1).
MLA	Gu, Xudong,et al."Effects of N and P addition on nutrient and stoichiometry of rhizosphere and non-rhizosphere soils of alfalfa in alkaline soil".SCIENTIFIC REPORTS 13.1(2023).