The Effects of Plastic Film Mulching on Maize Growth and Water Use in Dry and Rainy Years in Northeast China

doi:10.1371/journal.pone.0125781

	The Effects of Plastic Film Mulching on Maize Growth and Water Use in Dry and Rainy Years in Northeast China
	Xu, Jie 1; Li, Congfeng 1; Liu, Huitao 2; Zhou, Peilu 1; Tao, Zhiqiang 1; Wang, Pu 3; Meng, Qingfeng 1; Zhao, Ming 1
刊名	PLOS ONE
	2015
卷号	10 期号:5 页码:-
ISSN号	1932-6203
DOI	10.1371/journal.pone.0125781
通讯作者	Xu, Jie
英文摘要	Plastic film mulching (PM) has been widely used to improve maize (Zea mays L.) yields and water use efficiency (WUE) in Northeast China, but the effects of PM in a changing climate characterized by highly variable precipitation are not well understood. Six site-year field experiments were conducted in the dry and rainy years to investigate the effects of PM on maize growth, grain yield, and WUE in Northeast China. Compared to crops grown without PM treatment (control, CK), PM significantly increased the grain yield by 15-26% in the dry years, but no significant yield increase was observed in the rainy years. Yield increase in the dry years was mainly due to a large increase in dry matter accumulation pre-silking compared to the CK, which resulted from a greater dry matter accumulation rate due to the higher topsoil temperature and water content. As a result, the WUE of the crops that underwent PM (3.27 kg m(-3)) treatment was also increased by around 16% compared to the CK, although the overall evapotranspiration was similar between the two treatments. In the rainy years, due to frequent precipitation and scant sunshine, the topsoil temperature and water content in the field that received PM treatment was improved only at some stages and failed to cause higher dry matter accumulation, except at the 8th leaf stage. Consequently, the grain yield and WUE were not improved by PM in the rainy years. In addition, we found that PM caused leaf senescence at the late growth stage in both dry and rainy years. Therefore, in practice, PM should be applied cautiously, especially when in-season precipitation is taken into account.
学科主题	Multidisciplinary Sciences
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000354544200084
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4713]
专题	作物科学研究所_栽培生理学系
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100193, Peoples R China 2.Jilin Acad Agr Sci, Inst Agr Environm & Res Ctr, Changchun, Peoples R China 3.China Agr Univ, Coll Agron & Biotechnol, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jie,Li, Congfeng,Liu, Huitao,et al. The Effects of Plastic Film Mulching on Maize Growth and Water Use in Dry and Rainy Years in Northeast China[J]. PLOS ONE,2015,10(5):-.
APA	Xu, Jie.,Li, Congfeng.,Liu, Huitao.,Zhou, Peilu.,Tao, Zhiqiang.,...&Zhao, Ming.(2015).The Effects of Plastic Film Mulching on Maize Growth and Water Use in Dry and Rainy Years in Northeast China.PLOS ONE,10(5),-.
MLA	Xu, Jie,et al."The Effects of Plastic Film Mulching on Maize Growth and Water Use in Dry and Rainy Years in Northeast China".PLOS ONE 10.5(2015):-.