干旱区生态环境知识资源中心(Arid): Saline water use for vegetable crops production in smallholders' farms

Arid

DOI	10.12895/jaeid.20202.1406
	Saline water use for vegetable crops production in smallholders' farms
	El Mokh, Fathia; Nagaz, Kamel; Masmoudi, M. M.; Ben Mechlia, N.
通讯作者	Nagaz, K (corresponding author), Inst Reg Arides, Medenine, Tunisia.
来源期刊	JOURNAL OF AGRICULTURE AND ENVIRONMENT FOR INTERNATIONAL DEVELOPMENT
ISSN	2240-2802
出版年	2020
卷号	114 期号:2 页码:85-101
英文摘要	Field studies on saline water use (6 dS/m) for carrot, lettuce and pepper production in smallholder's farms were conducted in the arid region of Medenine-Tunisia. The irrigation regimes were full (FI) and deficit (DI-80, DI-60, FI-DI60) irrigated with levels of 100, 80 and 60% of ETc when 40% of total available water in the root zone in the FI treatment was depleted, and farmer method (Farmers). Results show that the greatest values of soil salinity were observed under Farmers (FM) and DI-60 treatments. Relatively low ECe values were also recorded under FI-DI60 and DI-80 treatments. The highest mean yields of carrot (26.8-28.7-29.5 t/ha), lettuce (42.6-45.8 t/ha) and pepper (22.3-24.4 t/ha) were recorded for the FI treatment, that is not significantly different from the FI-DI60 and DI-80 treatments. Compared with FI, significant reductions in carrot, lettuce and pepper yields were observed under the DI60 and Farmers treatments, resulting from a reduction in yield components. The Farmers's method increased soil salinity and resulted in an increase of water use of 43-57% for carrot, 26-29% for lettuce and 11.5-16% for pepper. Water productivity (WP) values reflected the differences in yields and varied between 3.4 (Farmers) and 9.7 kg/m(3) (DI-80) for carrot, 7.5 and 19.1 kg/m(3) for lettuce and 2.4 and 5.5 kg/m(3) for pepper across different years and treatments. The soil water balance-based irrigation method (FI) generated the greatest net income compared to the Farmers treatment in carrot, lettuce and pepper productions under arid environment and the lowest soil salinization. FI scheduling technique is suggested for optimizing saline water use for vegetable crops. Under water scarcity, the adoption of the FI-DI60 and DI-80 strategies results in 4.5 to 20% water savings as compared to FI with small impact on salinity in the root zone and yield and net income reductions.
英文关键词	Saline water irrigation management vegetable net return water productivity smallholder's farm arid areas
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:000605006400006
WOS关键词	DIFFERENT IRRIGATION METHODS ; SUBSURFACE DRIP IRRIGATION ; DEFICIT IRRIGATION ; FURROW IRRIGATION ; SOIL-SALINITY ; ARID CONDITIONS ; YIELD ; REGIMES ; PEPPER ; POTATO
WOS类目	Agronomy
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/2XILL650/352622
作者单位	[El Mokh, Fathia; Nagaz, Kamel] Inst Reg Arides, Medenine, Tunisia; [Masmoudi, M. M.; Ben Mechlia, N.] INAT, 43 Ave Charles Nicolle, Tunis, Tunisia
推荐引用方式 GB/T 7714	El Mokh, Fathia,Nagaz, Kamel,Masmoudi, M. M.,et al. Saline water use for vegetable crops production in smallholders' farms[J],2020,114(2):85-101.
APA	El Mokh, Fathia,Nagaz, Kamel,Masmoudi, M. M.,&Ben Mechlia, N..(2020).Saline water use for vegetable crops production in smallholders' farms.JOURNAL OF AGRICULTURE AND ENVIRONMENT FOR INTERNATIONAL DEVELOPMENT,114(2),85-101.
MLA	El Mokh, Fathia,et al."Saline water use for vegetable crops production in smallholders' farms".JOURNAL OF AGRICULTURE AND ENVIRONMENT FOR INTERNATIONAL DEVELOPMENT 114.2(2020):85-101.