干旱区生态环境知识资源中心(Arid): PERFORMANCE FIELD EVALUATION OF DRIP IRRIGATION SYSTEMS UNDER CONDITIONS OF THE DESERT REGION IN WESTERN IRAQ

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	PERFORMANCE FIELD EVALUATION OF DRIP IRRIGATION SYSTEMS UNDER CONDITIONS OF THE DESERT REGION IN WESTERN IRAQ
	Al-Mehmdy, Sh M.; Abood, M. A.; Alkhateb, B. A. A. H.
通讯作者	Al-Mehmdy, SM
来源期刊	IRAQI JOURNAL OF AGRICULTURAL SCIENCES
ISSN	0075-0530
EISSN	2410-0862
出版年	2020
卷号	51 期号:1 页码:392-400
英文摘要	A field experiment was carried out at Al-Saqlawiya township Al-Anbar governorate at north in latitude 33 degrees 24'57 '' and east longitude 43 degrees 41'23 '', during period from 15/10/2018 to 15/1/2019 in order to evaluate the performance of 5 units of surface drip irrigation system, components and periods of use, by the steps recommended by the American Agriculture Engineers Association, at 50 kPa operational pressure. Results showed that there was a disparity in values of emitters actual discharge, uniformity coefficient, emission uniformity and variation percent of discharge. Although the similarity of most measurement conditions such as land area, design, management and the operational pressure except of the periods of using these systems which ranged 2-5 years. The decrease percent of actual discharge values 8.06%, 8.74%, and 19.04% when comparing the actual discharge for the system 1 with the values of systems 2,3 and 4, respectively. While the increase percent of the actual discharge value reached 29.74% when comparing of system 1 with system 5. Uniformity coefficient of system decreased were 5.32%, 19.95%, 3.81% and 7.21%, respectively, and 10.73%,37.25%,7.51% and 14.36% for the decrease percent of emission uniformity comparing the system 1 with the systems 2, 3, 4 and 5, respectively, as for the increase percent for the variation emitters discharge, it were 7.70%, 118.73%, 7.70%, respectively. Non- compliance of users of these systems with regular maintenance of the end of agriculture seasons, poor storage conditions, not maintained at high temperature or cold conditions and increase use periods, all had caused the expansion of emitters' holes, which affected negatively in some values of the followed evaluation standard.
英文关键词	Evaluation uniformity coefficient emission uniformity discharge variation
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000523685300015
WOS关键词	UNIFORMITY
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/2XILL650/334296
作者单位	[Al-Mehmdy, Sh M.; Alkhateb, B. A. A. H.] Univ Anbar, Coll Agr, Dept Soil Sci & Water Resources, Anbar, Iraq; [Abood, M. A.] Univ Diyala, Coll Agr, Dept Soil Sci & Water Resources, Baqubah, Iraq
推荐引用方式 GB/T 7714	Al-Mehmdy, Sh M.,Abood, M. A.,Alkhateb, B. A. A. H.. PERFORMANCE FIELD EVALUATION OF DRIP IRRIGATION SYSTEMS UNDER CONDITIONS OF THE DESERT REGION IN WESTERN IRAQ[J],2020,51(1):392-400.
APA	Al-Mehmdy, Sh M.,Abood, M. A.,&Alkhateb, B. A. A. H..(2020).PERFORMANCE FIELD EVALUATION OF DRIP IRRIGATION SYSTEMS UNDER CONDITIONS OF THE DESERT REGION IN WESTERN IRAQ.IRAQI JOURNAL OF AGRICULTURAL SCIENCES,51(1),392-400.
MLA	Al-Mehmdy, Sh M.,et al."PERFORMANCE FIELD EVALUATION OF DRIP IRRIGATION SYSTEMS UNDER CONDITIONS OF THE DESERT REGION IN WESTERN IRAQ".IRAQI JOURNAL OF AGRICULTURAL SCIENCES 51.1(2020):392-400.