干旱区生态环境知识资源中心(Arid): Long-term cover crop management effects on soil properties in dryland cropping systems

Arid

DOI	10.1016/j.agee.2022.107852
	Long-term cover crop management effects on soil properties in dryland cropping systems
	Simon, Logan M. M.; Obour, Augustine K. K.; Holman, Johnathon D. D.; Roozeboom, Kraig L. L.
通讯作者	Obour, AKK
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2022
卷号	328
英文摘要	Replacing summer-fallow by growing cover crops (CC) in semi-arid regions might provide several soil health benefits. This study examined the effects of long-term CC management in place of fallow on soil properties in a no-till (NT) winter wheat (Triticum aestivum L.)-grain sorghum (Sorghum bicolor Moench)-fallow (WSF) cropping system. Fallow replacement treatments were spring-planted and included peas (Pisum sativum L.) for grain as well as one-, three-, and six-species CC mixtures compared with summer-fallow. Half of each CC treatment was harvested for forage and the other half remained standing after termination. Soil organic carbon (SOC) stocks within the 0-to 15-cm soil depth increased by 0.14 Mg ha(-1) yr(-1) for each Mg ha(-1) CC residue added from 2008 to 2012 and were unaffected by CC diversity. However, SOC stocks were not different than fallow in 2018 likely because CC residue inputs declined due to a succession of drought years. Residue contribution from grain sorghum in the WSF rotation best predicted SOC in 2018 compared to 2012. Soil aggregation was greater with CCs compared to peas or fallow and was unaffected by CC diversity. Mean weight diameter (MWD) of water stable aggregates in 2018 was greater with standing CCs (1.11 mm) compared to peas (0.77 mm) but was similar to fallow (0.84 mm). The MWD of dry aggregates with standing (3.55 mm) and hayed (3.62 mm) CCs were greater compared to fallow (2.75 mm). Our findings suggest simple CC mixtures and CCs managed for hay provide similar soil benefits as diverse CC mixtures or CCs left standing in this semi-arid environment.
英文关键词	Cover crop Dryland cropping systems Soil organic matter Aggregate stability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000789863800007
WOS关键词	NO-TILL ; REPLACING FALLOW ; ORGANIC-CARBON ; HARVEST INDEX ; GREAT-PLAINS ; AGROECOSYSTEMS ; YIELD ; OPPORTUNITIES ; INFILTRATION ; RYE
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391661
推荐引用方式 GB/T 7714	Simon, Logan M. M.,Obour, Augustine K. K.,Holman, Johnathon D. D.,et al. Long-term cover crop management effects on soil properties in dryland cropping systems[J],2022,328.
APA	Simon, Logan M. M.,Obour, Augustine K. K.,Holman, Johnathon D. D.,&Roozeboom, Kraig L. L..(2022).Long-term cover crop management effects on soil properties in dryland cropping systems.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,328.
MLA	Simon, Logan M. M.,et al."Long-term cover crop management effects on soil properties in dryland cropping systems".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 328(2022).