干旱区生态环境知识资源中心(Arid): Water productivity and net profit of high-density olive orchards in San Juan, Argentina

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DOI	10.1016/j.agwat.2021.106878
	Water productivity and net profit of high-density olive orchards in San Juan, Argentina
	Serman, Facundo Vita; Orgaz, Francisco; Starobinsky, Gabriela; Capraro, Flavio; Fereres, Elias
通讯作者	Serman, FV (corresponding author), 9 Julio 22, RA-5360 Chilecito, La Rioja, Argentina.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	252
英文摘要	Olive cultivation in Argentina has experienced an important expansion based on large-scale development of highdensity (HD) olive orchards. Intensification has led to yield increases, but, because of the high annual ETo and low rainfall, olive production must rely heavily on irrigation. The aim of this work was to determine the yield response to variable water supply of a HD, tall olive orchard, and to assess the economic water productivity (WP) of the olive, growing in an environment where the water resource is extremely scarce. During three seasons in an olive orchard (cv. Arbequina), we evaluated seven irrigation regimes which supplied 120% (T120), 100% (T100), 90% (T90), 80% (T80), 70% (T70), 60% (T60) y 40% (T40) of the estimated ETc. After the first year, which was considered of transition, the next two growing seasons exhibited a clear decline in yield in response to the irrigation decline, with the reduction in fruit yield related to both fruit numbers and fruit size. A third degree polynomial function was fitted to treatment averages (R2 = 0.99). The maximum oil production (ca = 3080 kg oil ha-1) was obtained with 860 mm of irrigation. The marginal WP reached a maximum (5.9 kg oil ha-1 mm-1) at 550 mm of irrigation and declined thereafter, reaching zero at 860 mm. In economic terms, the grower achieves maximum returns (US$ 3140 ha-1) at 850 mm of irrigation. With the cost of water increasing from the present US $ 0.04 m-3 to US$0.24 m-3, the maximum net profit would be reduced by up to 53% (US$ 1476 ha-1), however, it would be achieved at a similar irrigation level (820 mm). If in the near future water scarcity in the region makes it difficult to maintain the present levels of water supply, aimed at maximizing profits, there will be the need to impose restrictions through resource conservation policies to reach an equilibrium between economic, environmental, and sustainability goals.
英文关键词	Deficit irrigation Water status Oil yield Production function Marginal profit
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000663329900006
WOS关键词	LINE-SOURCE SPRINKLER ; OLEA-EUROPAEA L. ; DEFICIT IRRIGATION ; ARID REGION ; YIELD RESPONSES ; USE EFFICIENCY ; INDICATORS ; QUALITY ; STRESS ; GROWTH
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349348
作者单位	[Serman, Facundo Vita] Univ Nacl Chilecito UNdeC, Inst Agr Sostenible El Oasis IASO, 9 Julio 22, RA-5360 Chilecito, La Rioja, Argentina; [Serman, Facundo Vita] Inst Nacl Tecnol Agr INTA, EEA San Juan Ing Marcos Zalazar & Vidart, J5429XAB, San Juan, Argentina; [Orgaz, Francisco; Fereres, Elias] CSIC, Inst Sustainable Agr, Apartado 4084, Cordoba 14080, Spain; [Starobinsky, Gabriela] Univ Nacl Chilecito UNdeC, Dept Ciencias Sociales Jurid & Econ, Los Pelegrinos S-N, RA-5360 Chilecito, La Rioja, Argentina; [Capraro, Flavio] Univ Nacl San Juan UNSJ, CONICET, Inst Automat, INAUT, Av Lib Gral San Martin 1109 Oeste,J5400ARL, San Juan, Argentina; [Fereres, Elias] Univ Cordoba, Dept Agron, Campus Rabanales C5, Cordoba 14014, Spain
推荐引用方式 GB/T 7714	Serman, Facundo Vita,Orgaz, Francisco,Starobinsky, Gabriela,et al. Water productivity and net profit of high-density olive orchards in San Juan, Argentina[J],2021,252.
APA	Serman, Facundo Vita,Orgaz, Francisco,Starobinsky, Gabriela,Capraro, Flavio,&Fereres, Elias.(2021).Water productivity and net profit of high-density olive orchards in San Juan, Argentina.AGRICULTURAL WATER MANAGEMENT,252.
MLA	Serman, Facundo Vita,et al."Water productivity and net profit of high-density olive orchards in San Juan, Argentina".AGRICULTURAL WATER MANAGEMENT 252(2021).