Arid
DOI10.1016/j.agwat.2017.12.003
Using saline soil and marginal quality water to produce alfalfa in arid climates
Diaz, F. J.1; Grattan, S. R.2; Reyes, J. A.3; de la Roza-Delgado, B.4; Benes, S. E.5; Jimenez, C.1; Dorta, M.1; Tejedor, M.1
通讯作者Diaz, F. J.
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2018
卷号199页码:11-21
英文摘要

The gradual increase in the amount of land and water resources affected by salt in arid and semi-arid regions requires strategies to optimize the use of these marginal-quality resources. Recent field and greenhouse experiments have demonstrated the potential of growing certain ’pre-selected’ varieties of alfalfa in highly saline conditions. A greenhouse study was conducted to determine the impact of irrigation with saline groundwater on alfalfa growth and production in saline-sodic soils. The sustainability of the system in terms of forage yield and quality was also evaluated. The study included three varieties of alfalfa (Medicago sativa, vars. SW8421S, PGI908S and WL656HQ) planted in pots filled with saline-sodic soil (Calcic Haplosalids) collected on the island of Lanzarote (Spain) and irrigated for 18 months with increasingly saline water. Although the yield of the alfalfa varieties was reduced by an average of 7, 20, 31 and 46% as the salinity of the irrigation water increased from 0.4 dS m(-1) to 2.5,5.0, 7.5 and 10.0 dS m(-1), respectively, their relative salt tolerance, based on the average electrical conductivity of the saturated soil extract (ECe), was much higher than those established in the literature. Based on their nutritional quality, all alfalfa varieties are categorized as ’supreme’ quality, with metabolizable energy (ME) values in excess of 10 MJ kg(-1). Moreover, no detriment to quality was observed at the higher levels of irrigation water salinity. Mineral composition analysis revealed S, K and B levels near or above the established maximum tolerable levels (MTLs) suggesting that this forage could only be safely consumed by ruminants over the long term if combined with other forages with lower mineral content. (C) 2017 Elsevier B.V. All rights reserved.


英文关键词Medicago sativa Biosaline agriculture Saline groundwater Salinity tolerance Forage quality
类型Article
语种英语
国家Spain ; USA
收录类别SCI-E
WOS记录号WOS:000425075000002
WOS关键词SODIC DRAINAGE WATER ; RUMINANT MINERAL-NUTRITION ; SALT-TOLERANT FORAGES ; DESALINATED SEAWATER ; MEDICAGO-SATIVA ; REUSE SYSTEMS ; IRRIGATION ; YIELD ; DIGESTIBILITY ; AGRICULTURE
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
来源机构University of California, Davis
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207353
作者单位1.Univ La Laguna, Dept Anim Biol Soil Sci & Geol, San Cristobal la Laguna 38206, Canary Islands, Spain;
2.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA;
3.Canarian Inst Agr Res, Unit Appl Bot, Puerto La Cruz 38400, Canary Islands, Spain;
4.Reg Inst Res & Agro Food Dev, Dept Nutr Grasslands & Forages, Villaviciosa 33300, Asturias, Spain;
5.Calif State Univ Fresno, Dept Plant Sci, Fresno, CA 93740 USA
推荐引用方式
GB/T 7714
Diaz, F. J.,Grattan, S. R.,Reyes, J. A.,et al. Using saline soil and marginal quality water to produce alfalfa in arid climates[J]. University of California, Davis,2018,199:11-21.
APA Diaz, F. J..,Grattan, S. R..,Reyes, J. A..,de la Roza-Delgado, B..,Benes, S. E..,...&Tejedor, M..(2018).Using saline soil and marginal quality water to produce alfalfa in arid climates.AGRICULTURAL WATER MANAGEMENT,199,11-21.
MLA Diaz, F. J.,et al."Using saline soil and marginal quality water to produce alfalfa in arid climates".AGRICULTURAL WATER MANAGEMENT 199(2018):11-21.
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