干旱区生态环境知识资源中心(Arid): Changes in soil organic carbon and nitrogen after 47 years with different tillage, stubble and fertiliser management in a Vertisol of north-eastern Australia

Arid

DOI	10.1071/SR19314
	Changes in soil organic carbon and nitrogen after 47 years with different tillage, stubble and fertiliser management in a Vertisol of north-eastern Australia
	Page, K. L.; Dalal, R. C.; Reeves, S. H.; Wang, W. J.; Jayaraman, Somasundaram; Dang, Y. P.
通讯作者	Page, KL
来源期刊	SOIL RESEARCH
ISSN	1838-675X
EISSN	1838-6768
出版年	2020
卷号	58 期号:4 页码:346-355
英文摘要	No-till (NT) farming has been widely adopted to assist in reducing erosion, lowering fuel costs, conserving soil moisture and improving soil physical, chemical and biological characteristics. Improvements in soil characteristics are often driven by the greater soil organic matter accumulation (as measured by soil organic carbon (SOC)) in NT compared to conventional tillage (CT) farming systems. However, to fully understand the effect of NT it is important to understand temporal changes in SOC by monitoring over an extended period. We investigated the long-term effect of NT and stubble retention (SR) on changes in SOC and total soil nitrogen (STN) using results from an experiment that has been running for 50 years in a semi-arid subtropical region of north-eastern Australia. In this experiment, the effects of tillage (CT vs NT), residue management (stubble burning (SB) vs SR), and nitrogen (N) fertiliser (0 and 90 kg-N ha(-1)) were measured in a balanced factorial experiment on a Vertisol (Ustic Pellusert). The use of NT, SR and N fertiliser generally improved SOC (by up to 12.8%) and STN stocks (by up to 31.7%) in the 0-0.1 m layer relative to CT, SB and no N fertiliser, with the greatest stocks observed where all three treatments were used in combination. However, declines in SOC (up to 20%) and STN (up to 25%) occurred in all treatments over the course of the experiment, indicating that changes in management practices were unable to prevent a loss of soil organic matter over time in this farming system. However, the NT and SR treatments did lose less SOC than CT and SB treatments, and SR also reduced STN loss. The delta C-13 analysis of samples collected in 2008 and 2015 highlighted that crop residues have significantly contributed to SOC stocks at the site and that their contribution is increasing over time.
英文关键词	nitrogen fertiliser no-tillage soil total nitrogen stubble retention sustainable soil management
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000536689000003
WOS关键词	NO-TILLAGE ; CONSERVATION TILLAGE ; CROP RESIDUE ; CONTRASTING TILLAGE ; ZERO-TILLAGE ; SEQUESTRATION ; STORAGE ; MATTER ; SYSTEMS ; PRODUCTIVITY
WOS类目	Soil Science
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/2XILL650/324580
作者单位	[Page, K. L.; Dalal, R. C.; Wang, W. J.; Dang, Y. P.] Univ Queensland, Sch Agr & Food Sci, St Lucia, Qld 4072, Australia; [Reeves, S. H.; Wang, W. J.; Jayaraman, Somasundaram] Dept Environm & Sci, Dutton Pk, Qld 4102, Australia; [Jayaraman, Somasundaram] ICAR Indian Inst Soil Sci, Bhopal 462038, Madhya Pradesh, India
推荐引用方式 GB/T 7714	Page, K. L.,Dalal, R. C.,Reeves, S. H.,et al. Changes in soil organic carbon and nitrogen after 47 years with different tillage, stubble and fertiliser management in a Vertisol of north-eastern Australia[J],2020,58(4):346-355.
APA	Page, K. L.,Dalal, R. C.,Reeves, S. H.,Wang, W. J.,Jayaraman, Somasundaram,&Dang, Y. P..(2020).Changes in soil organic carbon and nitrogen after 47 years with different tillage, stubble and fertiliser management in a Vertisol of north-eastern Australia.SOIL RESEARCH,58(4),346-355.
MLA	Page, K. L.,et al."Changes in soil organic carbon and nitrogen after 47 years with different tillage, stubble and fertiliser management in a Vertisol of north-eastern Australia".SOIL RESEARCH 58.4(2020):346-355.