干旱区生态环境知识资源中心(Arid): Plastic film mulching stimulates brace root emergence and soil nutrient absorption of maize in an arid environment

Arid

DOI	10.1002/jsfa.10036
	Plastic film mulching stimulates brace root emergence and soil nutrient absorption of maize in an arid environment
	Zhou, Lifeng 1; Feng, Hao 2
通讯作者	Feng, Hao
来源期刊	JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
ISSN	0022-5142
EISSN	1097-0010
出版年	2020
卷号	100 期号:2 页码:540-550
英文摘要	BACKGROUND Root-shoot ratio plays an important role in mulching effects on increases in maize kernel dry weight and grain yield. RESULTS We examined the effects of plastic film mulching with fertigation on soil nitrate, soil Olsen-P, aboveground and belowground growth, grain filling, and yield of maize. The 2-year research was conducted in a field with a subsoil sand layer (FSS) and in a field without a subsoil sand layer (FNS) in the Hetao Irrigation District, northwest China. Treatments included two levels of plastic film mulching (FM, fully mulched; PM, partially mulched with a cover ratio of 60%), and a non-mulched (NM) control. Mulching methods significantly increased soil NO3-N concentrations (SNCs) in the main root zone in FSS, but not in FNS. Mulching significantly increased root length density in the 0-40 cm soil layer. Mulching increased brace roots emergence by 20.2% under full, and by 9.9% under partial mulching, accelerating soil phosphorus use in the surface soil layer. Mulching increased grain yield in spring maize via enhancing base stem diameter, leaf area, and relative chlorophyll content, decreased the ratio of surface root area to leaf area, and improved kernel dry weight increase. CONCLUSIONS A high proportion of base fertilizer to total fertilizer input resulted in nutrient deficiency during reproductive stage in fertigated maize, therefore, applying a portion of base fertilizer after the maize elongation stage is recommended for a further yield increase of mulched fertigated maize. (c) 2019 Society of Chemical Industry
英文关键词	mulched drip irrigation kernel dry weight development soil nitrate soil Olsen-P
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000496512300001
WOS关键词	KERNEL WATER RELATIONS ; LEAF SENESCENCE ; USE EFFICIENCY ; NODAL ROOTS ; SINK RATIO ; NITROGEN ; YIELD ; TEMPERATURE ; IRRIGATION ; GROWTH
WOS类目	Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS研究方向	Agriculture ; Chemistry ; Food Science & Technology
EI主题词	2019-11-14
来源机构	中国科学院西北生态环境资源研究院 ; 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/2XILL650/310854
作者单位	1.Chinese Acad Sci, Linze Inland River Basin Res Stn, Key Lab Ecohydrol Inland River Basin Cold & Arid, Environm & Engn Res Inst,Chinese Ecosyst Res Netw, Lanzhou, Gansu, Peoples R China; 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Lifeng,Feng, Hao. Plastic film mulching stimulates brace root emergence and soil nutrient absorption of maize in an arid environment[J]. 中国科学院西北生态环境资源研究院, 西北农林科技大学,2020,100(2):540-550.
APA	Zhou, Lifeng,&Feng, Hao.(2020).Plastic film mulching stimulates brace root emergence and soil nutrient absorption of maize in an arid environment.JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE,100(2),540-550.
MLA	Zhou, Lifeng,et al."Plastic film mulching stimulates brace root emergence and soil nutrient absorption of maize in an arid environment".JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 100.2(2020):540-550.