干旱区生态环境知识资源中心(Arid): Bentonite effects on soil physical properties and millet yield components in a semi-arid region in China

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DOI	10.1139/cjss-2021-0007
	Bentonite effects on soil physical properties and millet yield components in a semi-arid region in China
	Mi, Junzhen; Gregorich, Edward G.; Xu, Shengtao; McLaughlin, Neil B.; Liu, Jinghui; Zhao, Baoping
通讯作者	Zhao, BP (corresponding author), Inner Mongolia Agr Univ, Natl Outstanding Agr Res Talents & Innovat Team, Cooperat Innovat Ctr Multigrain Crops, Hohhot 010019, Inner Mongolia, Peoples R China.
来源期刊	CANADIAN JOURNAL OF SOIL SCIENCE
ISSN	0008-4271
EISSN	1918-1841
出版年	2021
卷号	101 期号:4 页码:749-760
英文摘要	Soil structure plays a critical role in agroecosystems because it controls soil air and water capacity, nutrient availability, and crop root growth. A field experiment was conducted to evaluate the effect of bentonite on soil relative water content, soil cone penetration resistance, soil bulk density, aggregate size distribution, and millet crop yield components in a semi-arid region in northern China from 2011 to 2015. Treatments consisted of six bentonite rates (0, 6, 12, 18, 24, and 30 Mg.ha(-1)) applied only in the initial year. Addition of bentonite significantly increased soil relative water throughout the profile (0-60 cm) and aggregates in 0.25-2 mm class in 0-40 cm depth; it significantly decreased soil bulk density, soil cone penetration resistance, and aggregates in 0.053-0.25 mm class in the 0-40 cm depth. All of the bentonite treatments significantly increased 1000-kernel weight and panicle number up to 16% and 33%, respectively, but did not affect kernels per spike. Treatment with 24 Mg.ha(-1) bentonite achieved the greatest effect on all the soil physical parameters and crop yield components averaged over all years; the highest application rate (30 Mg.ha(-1)) had an increasing effect over time. This study indicates that application of bentonite improves soil health in sandy-loam soil in a semi-arid region, and thus it would help promote sustainable agriculture development in regions with similar soil and climate.
英文关键词	bentonite bulk density aggregates yield component loess soil
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000718327800013
WOS关键词	AGGREGATE-ASSOCIATED CARBON ; ORGANIC-MATTER ; SANDY SOIL ; MICROBIAL COMMUNITY ; ENZYME-ACTIVITIES ; ROOT-GROWTH ; SEED YIELD ; STABILITY ; CLAY ; MOISTURE
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/2XILL650/367964
作者单位	[Mi, Junzhen; Liu, Jinghui; Zhao, Baoping] Inner Mongolia Agr Univ, Natl Outstanding Agr Res Talents & Innovat Team, Cooperat Innovat Ctr Multigrain Crops, Hohhot 010019, Inner Mongolia, Peoples R China; [Mi, Junzhen; Gregorich, Edward G.; McLaughlin, Neil B.] Agr & Agri Food Canada, Ottawa Res & Dev Ctr, Ottawa, ON K1A 0C6, Canada; [Xu, Shengtao] Yunan Acad Agr Sci, Agr Environm & Resources Inst, Kunming 650205, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Mi, Junzhen,Gregorich, Edward G.,Xu, Shengtao,et al. Bentonite effects on soil physical properties and millet yield components in a semi-arid region in China[J],2021,101(4):749-760.
APA	Mi, Junzhen,Gregorich, Edward G.,Xu, Shengtao,McLaughlin, Neil B.,Liu, Jinghui,&Zhao, Baoping.(2021).Bentonite effects on soil physical properties and millet yield components in a semi-arid region in China.CANADIAN JOURNAL OF SOIL SCIENCE,101(4),749-760.
MLA	Mi, Junzhen,et al."Bentonite effects on soil physical properties and millet yield components in a semi-arid region in China".CANADIAN JOURNAL OF SOIL SCIENCE 101.4(2021):749-760.