Deficit irrigation scheduling of maize in the semi-arid area of northeast China

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Deficit irrigation scheduling of maize in the semi-arid area of northeast China
	Yin, Guanghua 1; Kang, Zhenjun 2,3; Gu, Jian 1; Hao, Liang 1,2; Cong, Peifei 1,2; Liu, Zuoxin 1
刊名	JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT
	2013
卷号	11 期号:2 页码:1035-1039
关键词	Water deficit water use efficiency regulate deficit irrigation water consumption intensity
ISSN号	1459-0255
通讯作者	Yin, GH
中文摘要	Regulated deficit irrigation (RDI) is one irrigation strategy that can conserve irrigation water and maintain yield. In this paper, we describe an investigation of the timing and efficacy of RDI in an experiment conducted in a waterproof shed on maize in 2009. Various levels of controlled soil water deficit, here expressed as the level of moisture in 30 cm soil layers, including high moisture content (70-75%), middle content (60-65%), and low content (50-55%). Grain yield increased along with evapotranspiration (ET), but the highest level of water use efficiency (WUE) was not consistent with the maximum yield. The amount of irrigation water under deficit conditions was usually between 269.4 mm and 342.7 mm in semi-arid areas. Mild water deficit at the jointing and flowering stages increased WUE by 24.38% and 23.02%, respectively, but decreased WUE by 19.07% at the grain-filling stage. Further differences were observed at the jointing stage (P<0.05). Water consumption intensity (WCI) was used to indicate irrigation timing and degree of RDI. The results of this study indicate that mild water deficit at the jointing stage is a better regulated deficit irrigation strategy for maize in semi-arid regions than deficit at other stages. It may be the optimal irrigation method for increasing maize production in semi-arid areas.
英文摘要	Regulated deficit irrigation (RDI) is one irrigation strategy that can conserve irrigation water and maintain yield. In this paper, we describe an investigation of the timing and efficacy of RDI in an experiment conducted in a waterproof shed on maize in 2009. Various levels of controlled soil water deficit, here expressed as the level of moisture in 30 cm soil layers, including high moisture content (70-75%), middle content (60-65%), and low content (50-55%). Grain yield increased along with evapotranspiration (ET), but the highest level of water use efficiency (WUE) was not consistent with the maximum yield. The amount of irrigation water under deficit conditions was usually between 269.4 mm and 342.7 mm in semi-arid areas. Mild water deficit at the jointing and flowering stages increased WUE by 24.38% and 23.02%, respectively, but decreased WUE by 19.07% at the grain-filling stage. Further differences were observed at the jointing stage (P<0.05). Water consumption intensity (WCI) was used to indicate irrigation timing and degree of RDI. The results of this study indicate that mild water deficit at the jointing stage is a better regulated deficit irrigation strategy for maize in semi-arid regions than deficit at other stages. It may be the optimal irrigation method for increasing maize production in semi-arid areas.
学科主题	Food Science & Technology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Food Science & Technology
研究领域[WOS]	Food Science & Technology
关键词[WOS]	WATER-USE EFFICIENCY ; WINTER-WHEAT ; ZEA-MAYS ; YIELD ; GROWTH ; CORN ; MANAGEMENT ; DROUGHT
收录类别	SCI
语种	英语
WOS记录号	WOS:000322369900001
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16506]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Yin, Guanghua,Kang, Zhenjun,Gu, Jian,et al. Deficit irrigation scheduling of maize in the semi-arid area of northeast China[J]. JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT,2013,11(2):1035-1039.
APA	Yin, Guanghua,Kang, Zhenjun,Gu, Jian,Hao, Liang,Cong, Peifei,&Liu, Zuoxin.(2013).Deficit irrigation scheduling of maize in the semi-arid area of northeast China.JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT,11(2),1035-1039.
MLA	Yin, Guanghua,et al."Deficit irrigation scheduling of maize in the semi-arid area of northeast China".JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT 11.2(2013):1035-1039.