干旱区生态环境知识资源中心(Arid): Exploring soil amendment strategies with polyacrylamide to improve soil health and oat productivity in a dryland farming ecosystem: One-time versus repeated annual application

Arid

DOI	10.1002/ldr.3482
	Exploring soil amendment strategies with polyacrylamide to improve soil health and oat productivity in a dryland farming ecosystem: One-time versus repeated annual application
	Ma, Bin 1,2; Ma, Bao-Luo 2; McLaughlin, Neil B.2; Mi, Junzhen 1; Yang, Yanming 1; Liu, Jinghui 1
通讯作者	Liu, Jinghui
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2020
卷号	31 期号:9 页码:1176-1192
英文摘要	Degraded lands resulting from human and natural causes are widespread in arid and semiarid regions throughout the world. Polyacrylamide (PAM) soil amendments are increasingly used to remediate these degraded lands with the potential benefits on soil health and crop production. However, the scientific evidence of farm-scale use of one-time versus repeated application of PAM has not been reported. The specific objective of this research was to determine the effects of single versus multiple annual PAM application on (a) the dynamic changes in soil quality parameters and (b) oat crop productivity indicators in a dryland farming ecosystem. Our data illustrated that multiple years of annual application of PAM significantly increased soil profile water storage, whereas it reduced soil bulk density and electrical conductivity in the top (0-20 cm) and deeper layers (20-60 cm) over those for the control or single PAM application. The improved soil microecological environments led to increased activities of soil enzymes urease (up to 106%), invertase (94%), and catalase (45%). These in turn promoted soil nutrient turnover and availability (e.g., 76% higher soil alkaline N) and crop growth leading to the improvement in grain protein (up to 31%), protein yield (58%), and partial factor productivity of nitrogen (20%), than did the control treatment. Taken together, these soil and crop performance indicators suggest that repeated annual PAM application for a minimum of 2-3 years would be an effective strategy to combat drought and land degradation and foster sustainable crop production in dryland agriculture under a changing climate scenario.
英文关键词	enzyme activity nutrient turnover organic matter soil amendment soil electrical conductivity sustainable dryland farming
类型	Article
语种	英语
国家	Peoples R China ; Canada
收录类别	SCI-E
WOS记录号	WOS:000509649000001
WOS关键词	WATER-USE EFFICIENCY ; SUPERABSORBENT POLYMER ; PHYSICAL-PROPERTIES ; ENZYME-ACTIVITIES ; POTATO PRODUCTION ; DROUGHT STRESS ; CLIMATE-CHANGE ; GROWTH ; NITROGEN ; QUALITY
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
EI主题词	2020-01-28
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312619
作者单位	1.Inner Mongolia Agr Univ, Natl Outstanding Agr Res Talents Innovat Team, Hohhot 010019, Inner Mongolia, Peoples R China; 2.Agr & Agri Food Canada, Ottawa Res & Dev Ctr, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
推荐引用方式 GB/T 7714	Ma, Bin,Ma, Bao-Luo,McLaughlin, Neil B.,et al. Exploring soil amendment strategies with polyacrylamide to improve soil health and oat productivity in a dryland farming ecosystem: One-time versus repeated annual application[J],2020,31(9):1176-1192.
APA	Ma, Bin,Ma, Bao-Luo,McLaughlin, Neil B.,Mi, Junzhen,Yang, Yanming,&Liu, Jinghui.(2020).Exploring soil amendment strategies with polyacrylamide to improve soil health and oat productivity in a dryland farming ecosystem: One-time versus repeated annual application.LAND DEGRADATION & DEVELOPMENT,31(9),1176-1192.
MLA	Ma, Bin,et al."Exploring soil amendment strategies with polyacrylamide to improve soil health and oat productivity in a dryland farming ecosystem: One-time versus repeated annual application".LAND DEGRADATION & DEVELOPMENT 31.9(2020):1176-1192.