干旱区生态环境知识资源中心(Arid): Is least limiting water range a useful indicator of the impact of tillage management on maize yield?

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DOI	10.1016/j.still.2020.104602
	Is least limiting water range a useful indicator of the impact of tillage management on maize yield?
	Li, Shengping 1,2; Wu, Xueping 1; Liang, Guopeng 1,3; Gao, Lili 4; Wang, Bisheng 1; Lu, Jinjing 1; Abdelrhman, Ahmed Ali 1; Song, Xiaojun 1; Zhang, Mengni 1,2; Zheng, Fengjun 1; Degre, Aurore 2
通讯作者	Wu, Xueping ; Degre, Aurore
来源期刊	SOIL & TILLAGE RESEARCH
ISSN	0167-1987
EISSN	1879-3444
出版年	2020
卷号	199
英文摘要	Tillage management is a key factor driving changes in soil physical properties (SPP) and crop yield around the world. However, there is a lack of knowledge about the relationships between SPP and crop yield. The dynamic of SPP during the growth period is also seldom taken into account to understand suitable soil physical environment for crop growth. Moreover, the crop growth process cannot be explained by an individual SPP substantially. The least limiting water range (LLWR), which integrates soil penetration resistance, air porosity, and soil water potential, may provide a better understanding of soil-crop relationship, especially in regions with limited precipitation. Our objective was to explain how dynamic SPP affected grain yield during the growth period. A long-term field experiment was established in 2003, with continuous spring maize, on sandy loam soil. Seasonal changes of SPP (i.e. bulk density, penetration resistance, porosity, mean weight diameter, LLWR, and plant available water) were determined under reduced tillage with residue incorporated (RT-RI), conventional tillage with residue removal (CT), and no-tillage with residue mulch (NT-RM). The results showed that these SPP were affected by both tillage management and growth stage. Bulk density, porosity, S index, and mean weight diameter were not effective indicators to explain the changes of grain yield under the three tillage managements. The range of LLWR was narrower than plant available water (PAW) during the growth period and more sensitive to assess soil water availability under RT-RI, CT, and NT-RM. NT-RM significantly increased the lower limit of LLWR, which made it more difficult for root water uptake. Hence, RT-RI presented higher corn yield compared to NT-RM, even if the water content remained lower. Redundancy analysis further indicated that maize yield was mainly driven by lower limit of LLWR and penetration resistance. Overall, LLWR was an aggregative indicator including not only soil penetration resistance but also air porosity and soil water potential, which can better explain the change of grain yield under the long-term tillage management in semi-arid region.
英文关键词	Conservation tillage Soil physical properties Yield Least limiting water range Soil water availability
类型	Article
语种	英语
国家	Peoples R China ; Belgium ; USA
收录类别	SCI-E
WOS记录号	WOS:000521110000024
WOS关键词	SOIL PHYSICAL QUALITY ; LONG-TERM ; CONSERVATION AGRICULTURE ; ORGANIC-MATTER ; CROPPING SYSTEMS ; AVAILABLE WATER ; USE EFFICIENCY ; LOESS PLATEAU ; BULK-DENSITY ; COVER CROPS
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/2XILL650/315580
作者单位	1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, 12 Zhongguancun South St, Beijing 100081, Peoples R China; 2.Univ Liege, Terra Res Ctr, GxABT, 2 Passage Deportes, B-5030 Gembloux, Belgium; 3.Utah State Univ, Dept Biol, Logan, UT 84322 USA; 4.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Li, Shengping,Wu, Xueping,Liang, Guopeng,et al. Is least limiting water range a useful indicator of the impact of tillage management on maize yield?[J],2020,199.
APA	Li, Shengping.,Wu, Xueping.,Liang, Guopeng.,Gao, Lili.,Wang, Bisheng.,...&Degre, Aurore.(2020).Is least limiting water range a useful indicator of the impact of tillage management on maize yield?.SOIL & TILLAGE RESEARCH,199.
MLA	Li, Shengping,et al."Is least limiting water range a useful indicator of the impact of tillage management on maize yield?".SOIL & TILLAGE RESEARCH 199(2020).