Arid
DOI10.1016/j.agwat.2017.12.030
The coupled impact of plastic film mulching and deficit irrigation on soil water/heat transfer and water use efficiency of spring wheat in Northwest China
Yang, Jian; Mao, Xiaomin; Wang, Kai; Yang, Weicai
通讯作者Mao, Xiaomin
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2018
卷号201页码:232-245
英文摘要

To investigate the influences of plastic film mulching and deficit irrigation on water use efficiency (WUE) of spring wheat, a 2-year field experiment was conducted from 2014 to 2015 in a semi-arid region of Northwest China. The experiments involve ten treatments and each have two replicates, including two levels of field mulching, i.e., no mulching (MO) and clear plastic film mulching (M1), and five irrigation levels, including the full irrigation treatment (W1) and four deficit irrigation treatments (W2-W5). The variation of soil moisture and temperature at different soil depths were monitored during the entire growing season, together with crop physiological index and yield. The results showed that the average soil temperature at 10 and 20 cm soil depth under film mulching were improved by 5.5%-9.3% compared with no mulching during the entire growing season, and were improved by 8.2%-16.5% during the early stage, i.e., 0-40 DAP (day after planting). Film mulching could help decrease soil evaporation and conserve the water in topsoil layers during the early stage of spring wheat growth, while in the middle stage the crop tended to consume more soil water in the root zone under film mulching condition. Compared with the cases with no mulching, the stages of emergence, tillering, jointing, heading, and milk ripe occurred 3, 2, 2-3, 2-7, 3-7 days earlier under mulched cases. The highest WUE in 2014 was 1.48 kg m(-3) achieved under W5M1 treatment, and the highest WUE in 2015 was 1.43 kg m(-3) achieved under W3M1 treatment. Generally, film mulching enhanced the soil temperature especially in the early stage, which consequently led to the advancement of growth stage and the improvement of WUE for spring wheat in this area. The combination of film mulching and some degree of deficit irrigation could reduce water loss and keep crop yield at a desirable level. Therefore with appropriate disposal techniques, field mulching tends to be an effective practice to improve water productivity in arid and semiarid agro-ecosystems of China. (C) 2018 Elsevier B.V. All rights reserved.


英文关键词Film mulching Spring wheat Irrigation Water use efficiency Soil water and heat transfer
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000429630800023
WOS关键词LOESS PLATEAU ; WINTER-WHEAT ; GRAIN-YIELD ; MAIZE YIELD ; SEMIARID AREAS ; RIDGE-FURROW ; GROWTH ; TEMPERATURE ; EVAPOTRANSPIRATION ; CROPS
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
来源机构中国农业大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207360
作者单位China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Yang, Jian,Mao, Xiaomin,Wang, Kai,et al. The coupled impact of plastic film mulching and deficit irrigation on soil water/heat transfer and water use efficiency of spring wheat in Northwest China[J]. 中国农业大学,2018,201:232-245.
APA Yang, Jian,Mao, Xiaomin,Wang, Kai,&Yang, Weicai.(2018).The coupled impact of plastic film mulching and deficit irrigation on soil water/heat transfer and water use efficiency of spring wheat in Northwest China.AGRICULTURAL WATER MANAGEMENT,201,232-245.
MLA Yang, Jian,et al."The coupled impact of plastic film mulching and deficit irrigation on soil water/heat transfer and water use efficiency of spring wheat in Northwest China".AGRICULTURAL WATER MANAGEMENT 201(2018):232-245.
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