干旱区生态环境知识资源中心(Arid): Deficit Irrigation Using Saline Water of Fruit Trees under Water Scarcity Conditions of Southern Tunisia

Arid

DOI	10.3390/atmos12070864
	Deficit Irrigation Using Saline Water of Fruit Trees under Water Scarcity Conditions of Southern Tunisia
	El Mokh, Fathia; Nagaz, Kamel; Masmoudi, Mohamed Moncef; Ben Mechlia, Netij; Ghiglieri, Giorgio
通讯作者	Nagaz, K (corresponding author), Inst Arid Reg IRA, Medenine 4119, Tunisia.
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2021
卷号	12 期号:7
英文摘要	Both water scarcity and salinity are major obstacles for crop production in arid parts of Tunisia and require adoption of strategies aimed at improving water-use efficiency. Field experiments on deficit irrigation (DI) of table olive, orange trees, and grapevines with saline water (2 dS center dot m(-1)) were conducted in the arid region of Medenine, Tunisia. Three irrigation treatments were compared with the farmer's method (FM) over two years (2013-2014): deficit irrigation (DI75) and (DI50), which received 75% and 50% less water than full irrigation (FI), respectively, and full compensation of the crop evapotranspiration (FI). Measurements included seasonal changes in soil water content, soil salinity, yield, fruit quality, and economic return. Results showed that in-season water limitations, roughly between 700-250 mm, caused significant reductions in yield and fruit weight, but improved the total soluble solids of fruits. Under FI, DI75, DI50, and FM, average yields were 26.6, 20.1, 14.7, and 21.2 t center dot ha(-1) for orange, 4.5, 4.0, 3.1, and 3.5 t center dot ha(-1) for table olive, and 3.8, 3.4, 3.1, and 3.5 t center dot ha(-1) for grapevine, respectively. Soil salinity build up increased linearly with decreasing irrigation water. Irrigation water productivity (IWP), although lowest for FM, was relatively high (3.30-4.30 kg center dot m(-3) for orange, 0.65-1.20 kg center dot m(-3) for table olive, and 0.74-1.30 kg center dot m(-3) for grapevine). Economic evaluation showed that the FI strategy generated the greatest net income (1800-6630 USD center dot ha(-1)), followed by DI75 (1350-3940 USD center dot ha(-1)), FM (844-4340 USD center dot ha(-1)), and DI50 (600-2400 USD center dot ha(-1)). The results show an important potential for reasonably sustaining farmer's income under increased water scarcity.
英文关键词	deficit irrigation net income orchards water productivity yield olive orange grapevine
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:000686188400001
WOS关键词	TABLE GRAPE ; SAVE WATER ; SOIL SALINIZATION ; PEACH YIELD ; PRODUCTIVITY ; STRATEGY ; QUALITY ; CLIMATE ; INDICATORS ; REGIMES
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362627
作者单位	[El Mokh, Fathia; Nagaz, Kamel] Inst Arid Reg IRA, Medenine 4119, Tunisia; [Masmoudi, Mohamed Moncef; Ben Mechlia, Netij] Univ Carthage, Natl Inst Agron Tunisia INAT, 43 Ave Charles Nicolle, Tunis 1082, Tunisia; [Ghiglieri, Giorgio] Univ Sassari UNISS, Desertificat Res Ctr, Piazza Univ 21, I-07100 Sassari, Italy
推荐引用方式 GB/T 7714	El Mokh, Fathia,Nagaz, Kamel,Masmoudi, Mohamed Moncef,et al. Deficit Irrigation Using Saline Water of Fruit Trees under Water Scarcity Conditions of Southern Tunisia[J],2021,12(7).
APA	El Mokh, Fathia,Nagaz, Kamel,Masmoudi, Mohamed Moncef,Ben Mechlia, Netij,&Ghiglieri, Giorgio.(2021).Deficit Irrigation Using Saline Water of Fruit Trees under Water Scarcity Conditions of Southern Tunisia.ATMOSPHERE,12(7).
MLA	El Mokh, Fathia,et al."Deficit Irrigation Using Saline Water of Fruit Trees under Water Scarcity Conditions of Southern Tunisia".ATMOSPHERE 12.7(2021).