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题名: Multi-site assessment of the effects of plastic-film mulch on dryland maize productivity in semiarid areas in China
作者: Wang, YP; Li, XG; Zhu, J; Fan, CY; Kong, XJ; Turner, NC; Siddique, KHM; Li, FM(李凤民)
收录类别: SCIE ; BIOSIS
出版日期: 2016-04-15
刊名: AGRICULTURAL AND FOREST METEOROLOGY
卷号: 220, 页码:160-169
出版者: ELSEVIER
出版地: AMSTERDAM
英文摘要: Transparent plastic-film mulch combined with ridge-furrow technology is widely used to improve crop productivity in cold semiarid areas of China, but whether the technology has similar benefits in different climatic environments is not known. The present study was initiated to assess the variation of plastic film mulch on maize (Zea mays L.) production in different semiarid environments. Four treatments: (i) plastic-film mulch, (ii) straw incorporation in soil without plastic-film mulch, (iii) straw incorporation plus plastic-film mulch, and (iv) no plastic-film mulch or straw incorporation (control) were imposed in ridge-furrow prepared fields at five sites along a hydrothermal gradient for up to 6 years. Compared to non-mulched plots, maize grain yield and aboveground biomass in mulched plots increased by 30-107% and 37-69%, respectively, across sites due to increased soil temperature and moisture principally during early growth. Plastic mulch increased grain yield to a greater extent at sites with higher hydrothermal limitations. Plastic mulch increased the harvest index of maize at cooler sites, but showed a decrease in harvest index at warmer sites, compared with no mulch. The mulch decreased the year-to-year variation in maize yield at the more hydrothermally-limited sites, but increased the variation at less hydrothermally-limited sites. Compared to no straw incorporation, straw incorporation increased grain yield and aboveground biomass by 7-12% and 8-12%, respectively, across the five sites. The present study suggests that the benefits of plastic-film mulch on maize grain yield and its stability varied significantly with local climatic conditions and that plastic-film mulch can be preferentially applied for maize production where both insufficient rainfall and low spring temperatures are limiting factors. (C) 2016 Elsevier B.V. All rights reserved.
关键词: Zea mays ; Grain yield ; Aboveground biomass ; Harvest index ; Ridge-furrow planting ; Soil temperature ; Soil moisture
作者部门: [Wang, Yong Peng ; Li, Xiao Gang ; Zhu, Jing ; Fan, Cheng Yun ; Kong, Xue Jing ; Li, Feng-Min] Lanzhou Univ, Inst Arid Agroecol, Sch Life Sci, State Key Lab Grassland & Agroecosyst, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China ; [Turner, Neil C. ; Siddique, Kadambot H. M.] Univ Western Australia, Inst Agr, M082, Perth, WA 6009, Australia
通讯作者: Li, XG (reprint author), Lanzhou Univ, Inst Arid Agroecol, Sch Life Sci, State Key Lab Grassland & Agroecosyst, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China.
学科分类: Agriculture; Forestry; Meteorology & Atmospheric Sciences
文章类型: Article
所属项目编号: State Technology Support Program [2011BAD29B04]
所属项目名称: 国家科技支撑计划
项目资助者: MOST
语种: 英语
DOI: 10.1016/j.agrformet.2016.01.142
ISSN号: 0168-1923
WOS记录号: WOS:000372385100015
BIOSIS记录号: BCI:BCI201600351468
IR记录号: WOS:000372385100015
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/181997
Appears in Collections:生命科学学院_期刊论文

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Recommended Citation:
Wang, YP,Li, XG,Zhu, J,et al. Multi-site assessment of the effects of plastic-film mulch on dryland maize productivity in semiarid areas in China[J]. AGRICULTURAL AND FOREST METEOROLOGY,2016,220:160-169.
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