干旱区生态环境知识资源中心(Arid): Temporal Variability of Soil Carbon and Nitrogen in Cotton Production on the Texas High Plains

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DOI	10.2134/agronj2019.02.0066
	Temporal Variability of Soil Carbon and Nitrogen in Cotton Production on the Texas High Plains
	Burke, J. A.1,2; Lewis, K. L.1,2; Ritchie, G. L.1,2; Moore-Kucera, J.2,3; DeLaune, P. B.4; Keeling, J. W.1
通讯作者	Lewis, K. L.
来源期刊	AGRONOMY JOURNAL
ISSN	0002-1962
EISSN	1435-0645
出版年	2019
卷号	111 期号:5 页码:2218-2225
英文摘要	Soil organic carbon (SOC) is a key indicator of soil health as it is important in essential soil functions related to nutrient cycling and soil productivity. Although, it can take several decades to increase SOC in semi-arid ecoregions, it is possible that the low organic matter background in sandy soils typical of semi-arid soils may show greater fluctuations compared to soils from other regions. This study was conducted to evaluate the temporal C and N dynamics of cotton (Gossypium hirsutum L.) cropping systems in a semi-arid region. The effects of no-tillage (NT) and cover crop use on SOC, potassium permanganate oxidizable carbon (POXC), inorganic nitrogen (Ninorg), and microbial respiration were investigated in a long-term study (similar to 19 yr) at Lamesa, TX, comparing conventional tillage (CT), winter fallow, to no-tillage rye cover (R-NT), and no-tillage mixed species cover (M-NT) on an Amarillo fine sandy loam. Results showed SOC and POXC were greatest during periods of active cover crop and cotton root growth. Soil organic C and POXC were significantly correlated (R-2 = 0.75; p < 0.0001), but poorly correlated to microbial respiration (R-2 = 0.41, p = 0.0001; and R-2 = 0.02, p = 0.8781, respectively). Conservation management practices did not impact Ninorg. Soil organic C and POXC levels were more variable than previously reported and responded to active root growth in this semi-arid, sandy soil.
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000484435400008
WOS关键词	ORGANIC-CARBON ; COVER CROPS ; TILLAGE ; SEQUESTRATION ; FERTILIZATION ; DECOMPOSITION ; RESPIRATION ; CANOPY ; HEALTH ; PLANT
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214083
作者单位	1.Texas A&M AgriLife Res, 1102 E Drew St, Lubbock, TX 79403 USA; 2.Texas Tech Univ, Dept Plant & Soil Sci, 2911 15th St,Suite 122, Lubbock, TX 79409 USA; 3.Amer Farmland Trust, 1150 Connecticut Ave NW,Suite 600, Washington, DC 20036 USA; 4.Texas A&M AgriLife Res, 11708 US-70, Vernon, TX 76384 USA
推荐引用方式 GB/T 7714	Burke, J. A.,Lewis, K. L.,Ritchie, G. L.,et al. Temporal Variability of Soil Carbon and Nitrogen in Cotton Production on the Texas High Plains[J],2019,111(5):2218-2225.
APA	Burke, J. A.,Lewis, K. L.,Ritchie, G. L.,Moore-Kucera, J.,DeLaune, P. B.,&Keeling, J. W..(2019).Temporal Variability of Soil Carbon and Nitrogen in Cotton Production on the Texas High Plains.AGRONOMY JOURNAL,111(5),2218-2225.
MLA	Burke, J. A.,et al."Temporal Variability of Soil Carbon and Nitrogen in Cotton Production on the Texas High Plains".AGRONOMY JOURNAL 111.5(2019):2218-2225.