干旱区生态环境知识资源中心(Arid): Executing legitimate irrigation scheduling by deficit irrigation mechanism to maximize onion production

Arid

DOI	10.1080/23311932.2022.2123758
	Executing legitimate irrigation scheduling by deficit irrigation mechanism to maximize onion production
	Yersaw, Babur Tesfaye; Lohani, Tarun Kumar
通讯作者	Lohani, TK
来源期刊	COGENT FOOD & AGRICULTURE
ISSN	2331-1932
出版年	2022
卷号	8 期号:1
英文摘要	Lack of irrigated water poses a threat in arid and semi-arid areas. Hybrid irrigation system has become an obligatory to save water and increase productivity. Deficit irrigation scheduling is a recent innovative approach of water-saving method. An experiment was conducted to estimate the irrigation interval and find an amicable solution by optimum deficit irrigation level at Arba Minch of southern Ethiopia using conventional furrow irrigation system. The treatments comprised 75%, 50% and 25% of irrigation requirement and four growth stages (initial, development, bulb formation, and late), which were considered in random complete block design with three replications. Refilling was commenced when 25% of Readily Available Water (RAW) depletion at the full irrigation was observed. The irrigation intervals at growth stages were 4, 6, 4, and 3 days, respectively, with an overall irrigation interval of 3 days. The net and gross irrigation of the crop were 311.80 mm and 445.42 mm, respectively. The highest crop phenology and yield were obtained by applying Irrigation Requirement (IR) of a maximum 100% and minimum at 25%. The maximum yield of 25.88 ton/ha was obtained from full irrigation which hardly affects the yield of 25.70 ton/ha obtained from 75%IR at late growth stages. Therefore, application of 100%IR at 3 days interval was assessed as economically productive. However, 50%IR at 3 days interval can be an option when there is a constraint of water supply. The findings will be useful for irrigation water management to maximize crop yields with limited water and unlimited land resources.
英文关键词	Crop phenology irrigation scheduling irrigation requirement optimum deficit level and readily available water
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000855726900001
WOS关键词	SUBSURFACE DRIP
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392164
推荐引用方式 GB/T 7714	Yersaw, Babur Tesfaye,Lohani, Tarun Kumar. Executing legitimate irrigation scheduling by deficit irrigation mechanism to maximize onion production[J],2022,8(1).
APA	Yersaw, Babur Tesfaye,&Lohani, Tarun Kumar.(2022).Executing legitimate irrigation scheduling by deficit irrigation mechanism to maximize onion production.COGENT FOOD & AGRICULTURE,8(1).
MLA	Yersaw, Babur Tesfaye,et al."Executing legitimate irrigation scheduling by deficit irrigation mechanism to maximize onion production".COGENT FOOD & AGRICULTURE 8.1(2022).