Arid
DOI10.1007/s00271-011-0281-5
An artificial capillary barrier to improve root-zone conditions for horticultural crops: response of pepper, lettuce, melon, and tomato
Ityel, Eviatar1; Lazarovitch, Naftali1; Silberbush, Moshe1; Ben-Gal, Alon2
通讯作者Lazarovitch, Naftali
来源期刊IRRIGATION SCIENCE
ISSN0342-7188
出版年2012
卷号30期号:4页码:293-301
英文摘要

Capillary barriers (CBs) occur at the interface between two soil layers having distinct differences in hydraulic characteristics. In preliminary work without growing crops, it was demonstrated that CBs implemented in sandy soils increased hydrostatic volumetric water content by 20-70%, depending on soil texture and depth of barrier insertion. We hypothesized that the introduction of an artificial CB at the lower root-zone boundary of horticultural crops can increase yields as a result of increased water content and uptake efficiency. The effects of introduced CBs on soil water content, plant growth, and yields of bell peppers (Capsicum annum L), lettuce (Lactuca sativa L), tomatoes (Lycopersicon esculantum L.), and melons (Cucumis melo L.) were studied in a desert environment in southern Israel. Inclusion of a CB increased soil water content by 60% and biomass and fruit yields by 25% for pepper, and increased matric head and biomass yield by 80 and 36%, respectively, for lettuce. Neither tomatoes nor melons reacted significantly to the presence of CBs, in spite of increased soil moisture. Daily soil matric head amplitude was reduced fivefold when lettuce was grown with a CB. Spatial variability was highly reduced when a CB was present. When peppers were grown with a CB, the standard deviations of water content and biomass yield were reduced by 40% relative to control.


类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000305219600005
WOS关键词DRIP IRRIGATION ; WATER SALINITY ; SOIL ; VARIABILITY ; YIELD ; MANAGEMENT ; SCALE
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/173057
作者单位1.Ben Gurion Univ Negev, Wyler Dept Dryland Agr, French Associates Inst Agr & Biotechnol Drylands, Jacob Blaustein Inst Desert Res, IL-84990 Beer Sheva, Israel;
2.Gilat Res Ctr, Dept Environm Phys & Irrigat, Agr Res Org, IL-85280 Negev, Israel
推荐引用方式
GB/T 7714
Ityel, Eviatar,Lazarovitch, Naftali,Silberbush, Moshe,et al. An artificial capillary barrier to improve root-zone conditions for horticultural crops: response of pepper, lettuce, melon, and tomato[J]. Ben-Gurion University of the Negev,2012,30(4):293-301.
APA Ityel, Eviatar,Lazarovitch, Naftali,Silberbush, Moshe,&Ben-Gal, Alon.(2012).An artificial capillary barrier to improve root-zone conditions for horticultural crops: response of pepper, lettuce, melon, and tomato.IRRIGATION SCIENCE,30(4),293-301.
MLA Ityel, Eviatar,et al."An artificial capillary barrier to improve root-zone conditions for horticultural crops: response of pepper, lettuce, melon, and tomato".IRRIGATION SCIENCE 30.4(2012):293-301.
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