干旱区生态环境知识资源中心(Arid): Impact of irrigation strategies on maize (Zea mays L.) production in the savannah region of northern Togo (West Africa)

Arid

DOI	10.17159/wsa/2020.v46.i1.7894
	Impact of irrigation strategies on maize (Zea mays L.) production in the savannah region of northern Togo (West Africa)
	Gadedjisso-Tossou, Agossou 1,2; Avellan, Tamara 1; Schuetze, Niels 2
通讯作者	Gadedjisso-Tossou, Agossou
来源期刊	WATER SA
ISSN	0378-4738
EISSN	1816-7950
出版年	2020
卷号	46 期号:1 页码:141-152
英文摘要	In northern Togo where rainfed maize is one of the major crops grown, agriculture is subject to frequent yield losses due to erratic rainfall.To ensure food availability and improve agricultural productivity, it is necessary to produce maize during the dry season under irrigation. A sound application of full and deficit irrigation requires a thorough understanding of the cop parameters and yield response to water. Thus, this study investigated the effect of full and deficit irrigation on maize plant above-ground biomass, leaf area index, canopy cover, plant height, and grain yield. A field experiment was carried out from December 2017 to April 2018 in northern Togo at the agronomic research institute. Full irrigation (FI), 80% FI, arid 60% FI treatments were applied. The results showed that In the late-season stage, the differences in biomass between FI and 60% FI were significant (p < 0.05). On average, FI had the greatest grain yield (2 200.4 kg/ha), while the lowest grain yield was recorded under 60% FI (1 068.3 kg/ha). The grain yield differences between FI and 60% FI were significant. Nevertheless, the grain yield differences between FI and 80% FI were not significant (p > 0.05). 80% FI had water use efficiency (WUE) (0.22 kg/m(3)) similar to that of FI (0.21 kg/m(3)) on average. The results of this study illustrate that deficit irrigation must be carefully managed since slight differences in the application volumes affect the biomass and yield of maize significantly. Under a moderate level of deficit irrigation (vegetative and reproductive growth stages) the biomass and the grain yield of maize are reduced. However, a moderate level of deficit irrigation during the vegetative growth stage could result in similar values of WUE to that of FI.
英文关键词	evapotranspiration deficit irrigation water use efficiency crop yield maize
类型	Article
语种	英语
国家	Germany
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000513899700015
WOS关键词	DEFICIT IRRIGATION ; YIELD RESPONSE ; USE EFFICIENCY ; CLIMATE-CHANGE ; GRAIN-YIELD ; AQUACROP ; MODEL ; FULL ; LEAF
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315742
作者单位	1.United Nat Univ, Inst Integrated Management Mat Fluxes & Resources, Ammonstr 74, D-01067 Dresden, Germany; 2.Tech Univ Dresden, Inst Hydrol & Meteorol, D-01069 Dresden, Germany
推荐引用方式 GB/T 7714	Gadedjisso-Tossou, Agossou,Avellan, Tamara,Schuetze, Niels. Impact of irrigation strategies on maize (Zea mays L.) production in the savannah region of northern Togo (West Africa)[J],2020,46(1):141-152.
APA	Gadedjisso-Tossou, Agossou,Avellan, Tamara,&Schuetze, Niels.(2020).Impact of irrigation strategies on maize (Zea mays L.) production in the savannah region of northern Togo (West Africa).WATER SA,46(1),141-152.
MLA	Gadedjisso-Tossou, Agossou,et al."Impact of irrigation strategies on maize (Zea mays L.) production in the savannah region of northern Togo (West Africa)".WATER SA 46.1(2020):141-152.