干旱区生态环境知识资源中心(Arid): Effects of film mulching and nitrogen fertilization on rhizosphere soil environment, root growth and nutrient uptake of winter oilseed rape in northwest China

Arid

DOI	10.1016/j.still.2018.12.009
	Effects of film mulching and nitrogen fertilization on rhizosphere soil environment, root growth and nutrient uptake of winter oilseed rape in northwest China
	Gu, Xiao-Bo; Cai, Huan-Jie; Du, Ya-Dan; Li, Yuan-Nong
通讯作者	Cai, Huan-Jie ; Li, Yuan-Nong
来源期刊	SOIL & TILLAGE RESEARCH
ISSN	0167-1987
EISSN	1879-3444
出版年	2019
卷号	187 页码:194-203
英文摘要	The ridge film mulching and furrow planting (RFMF) pattern has been increasingly applied to the production of wheat, maize, and potato in arid and semiarid regions of northwest China because it can significantly improve crop yield. How RFMF affects the productivity and whether it can improve the rhizosphere soil environment of winter oilseed rape (Brassica napus L.) is not clear. The main objective of the present study was to determine whether RFMF can improve rhizosphere soil environment and winter oilseed rape productivity in comparison to the conventional flat planting (FP) pattern in a three-year (2014-2017) field experiment. In combination with each planting pattern, we determined an optimal nitrogen (N) application rate among six levels: 0 (NO), 60 (N60), 120 (N120), 180 (N180), 240 (N240) and 300 (N300) kg N ha(-1). Results showed that the RFMF pattern significantly improved the rhizosphere soil environment by increasing soil moisture by 0.3-5.6% and soil temperature by 0.6-3.0 degrees C. However, soil oxygen concentration decreased by 0.03-5.66% during the flowering stage of winter oilseed rape. In addition, the RFMF pattern markedly improved rhizosphere soil enzyme activity and microorganism abundance and thus promoted root growth, nutrient uptake, and seed yield of winter oilseed rape. The resulting optimal N application rates remarkably improved rhizosphere soil enzyme activity, microorganism abundance, root growth, nutrient uptake, and yield of winter oilseed rape in both RFMF and FP treatments. In the RFMF treatment, N240 obtained significantly greater rhizosphere soil enzyme activity, microorganism abundance, root growth parameters, nutrient uptake, and seed yield than N0, N60, N120, and N180, with no significant differences observed between N240 and N300. In conclusion, the RFMF pattern in combination with the optimal N-application rate of 240 kg ha(-1) has great potential to improve rhizosphere environment and winter oilseed rape productivity in arid and semiarid regions of northwest China.
英文关键词	Ridge film mulching and furrow planting Rhizosphere soil environment Root growth
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000458093900020
WOS关键词	WATER-USE EFFICIENCY ; BRASSICA-NAPUS L. ; PLASTIC FILM ; SEED YIELD ; ENZYME-ACTIVITIES ; RIDGE-FURROW ; CROP PRODUCTIVITY ; EXTRACTION METHOD ; LOESS PLATEAU ; MAIZE YIELD
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218866
作者单位	Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gu, Xiao-Bo,Cai, Huan-Jie,Du, Ya-Dan,et al. Effects of film mulching and nitrogen fertilization on rhizosphere soil environment, root growth and nutrient uptake of winter oilseed rape in northwest China[J]. 西北农林科技大学,2019,187:194-203.
APA	Gu, Xiao-Bo,Cai, Huan-Jie,Du, Ya-Dan,&Li, Yuan-Nong.(2019).Effects of film mulching and nitrogen fertilization on rhizosphere soil environment, root growth and nutrient uptake of winter oilseed rape in northwest China.SOIL & TILLAGE RESEARCH,187,194-203.
MLA	Gu, Xiao-Bo,et al."Effects of film mulching and nitrogen fertilization on rhizosphere soil environment, root growth and nutrient uptake of winter oilseed rape in northwest China".SOIL & TILLAGE RESEARCH 187(2019):194-203.