干旱区生态环境知识资源中心(Arid): Nitrogen turnover in a repeatedly manured arid subtropical soil: Incubation studies with N-15 isotopes

Arid

DOI	10.1002/jpln.201800340
	Nitrogen turnover in a repeatedly manured arid subtropical soil: Incubation studies with N-15 isotopes
	Khanal, Gunadhish 1; Wachendorf, Christine 2; Dittert, Klaus 3; Willich, Melanie 4; Dietz, Herbert 5; Buerkert, Andreas 1; Ingold, Mariko 1
通讯作者	Ingold, Mariko
来源期刊	JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
ISSN	1436-8730
EISSN	1522-2624
出版年	2019
卷号	182 期号:5 页码:836-845
英文摘要	Under the hot and moist conditions of irrigated agriculture in the arid subtropics, turnover of organic matter is high, which can lead to considerable carbon (C) and nitrogen (N) losses. Therefore, sustainable use of these soils requires regular manure application at high rates. To investigate the contribution of consecutive manure applications to an arid sandy soil to various soil N pools, goat manure was isotopically labeled by feeding N-15-enriched Rhodes grass hay and applied to the soil during a two-year field experiment. In the first year, soils received N-15-labeled manure to distinguish between soil-derived and manure-derived N. In the second year, these plots were split for the application of either N-15-labeled or unlabeled manure to discriminate N derived from previous (first year) and recent (second year) manure application. Soil samples (of control and N-15-manured soil) were collected at the end of the first and the second year, and incubated in two laboratory experiments with labeled or unlabeled manure. At the beginning of Experiment 1, 7% of total N, 11% of K2SO4 extractable N, and 16% of microbial biomass N were derived from previously field-applied manure. While the application of manure during incubation increased microbial biomass N by 225% and 410% in the control soil and the previously field-manured soil, respectively, N2O emissions were more affected on the control soil, releasing considerable amounts of the soil N-pool (80% of total emissions). In Experiment 2, 4% of total N, 7% of K2SO4 extractable N, and 7% of microbial biomass N derived from previously applied manure, and 4%, 8%, and 3% from recently applied manure, respectively. Microbial biomass N and N2O-N derived from manure declined with time after manure application, whereas in Experiment 1 this tendency was only observed for microbial biomass N.
英文关键词	N-15-labeled manure C and N turnover oasis agriculture repeated manure application
类型	Article
语种	英语
国家	Germany ; USA ; Oman
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000477434700001
WOS关键词	ORGANIC-MATTER ; MICROBIAL BIOMASS ; RUMINANT MANURE ; ANIMAL MANURE ; N2O EMISSIONS ; SANDY SOIL ; CARBON ; NUTRIENT ; DENITRIFICATION ; DECOMPOSITION
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217291
作者单位	1.Univ Kassel, Organ Plant Prod & Agroecosyst Res Trop & Subtrop, Steinstr 19, D-37213 Witzenhausen, Germany; 2.Univ Kassel, Soil Biol & Plant Nutr, Nordbahnhofstr 1A, D-37213 Witzenhausen, Germany; 3.Georg August Univ Gottingen, Dept Crop Sci, Div Plant Nutr & Crop Physiol, Von Siebold Str 8, D-37075 Gottingen, Germany; 4.Kohala Ctr, 65-1291A Kawaihae Rd, Kamuela, HI 96743 USA; 5.Royal Court Affairs, Royal Gardens & Farms, Sohar, Oman
推荐引用方式 GB/T 7714	Khanal, Gunadhish,Wachendorf, Christine,Dittert, Klaus,et al. Nitrogen turnover in a repeatedly manured arid subtropical soil: Incubation studies with N-15 isotopes[J],2019,182(5):836-845.
APA	Khanal, Gunadhish.,Wachendorf, Christine.,Dittert, Klaus.,Willich, Melanie.,Dietz, Herbert.,...&Ingold, Mariko.(2019).Nitrogen turnover in a repeatedly manured arid subtropical soil: Incubation studies with N-15 isotopes.JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE,182(5),836-845.
MLA	Khanal, Gunadhish,et al."Nitrogen turnover in a repeatedly manured arid subtropical soil: Incubation studies with N-15 isotopes".JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE 182.5(2019):836-845.