干旱区生态环境知识资源中心(Arid): Evapotranspiration in young lime trees with automated irrigation

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DOI	10.1016/j.scienta.2021.110396
	Evapotranspiration in young lime trees with automated irrigation
	Mira-Garcia, A. B.; Vera, J.; Conejero, W.; Conesa, M. R.; Ruiz-Sanchez, M. C.
通讯作者	Ruiz-Sanchez, MC (corresponding author), Ctr Edafol & Biol Aplicada Segura, CEBAS CSIC, Dpto Riego, POB 164, Murcia 30100, Spain.
来源期刊	SCIENTIA HORTICULTURAE
ISSN	0304-4238
EISSN	1879-1018
出版年	2021
卷号	288
英文摘要	Citrus latifolia is increasingly being cultivated in Mediterranean areas, where the need for precise irrigation implies a sound knowledge of the crop's water requirements, which is carried out by monitoring the tree water status in the plant-soil-atmosphere system. Two year-old lime trees (Citrus latifolia Tan. cv. Bearss) were cultivated in 45 L weighing pot-lysimeters filled with a clay-loam soil and equipped with soil water sensors for recording the real-time soil water status. Irrigation, drainage, pot weight, and agro-meteorological variables were also recorded in real-time. Plant water relations - stem (psi stem) and leaf (psi leaf) water potentials, and leaf gas exchange - were periodically measured throughout the experiment. The automated irrigation protocol based on the volumetric soil water content was set to prevent tree water stress (with mean seasonal values of psi stem above -0.8 MPa and 7 mu mol m(-2) s(-1) and 80 mmol m(-2) s(-1), for net phtosynthesis and stomatal conductance, respectively). From the soil water pot balance, the computed fortnightly ET mean values throughout the growing season varied from 0.25 to 2.56 L plant(-1) day(-1) in winter and summer months, respectively. Maximum ET values occurred in July when evaporative demand was highest and lime fruits were in their most active growing phase. For day length, lime tree biomass changes were negligible, and the pot tree weight variations served for ET water balance validation (r(2)=0.92***). The contribution of this work is that it establishes a scalable weighing lysimeter prototype for determining the ET of lime trees grown in Mediterranean semi-arid conditions, using real-time soil water balance monitoring managed by an irrigation automation protocol. This approach could be replicated for precise ET measurements in other crops.
英文关键词	Citrus latifolia Lysimeter Soil water balance Water requirements Wireless monitoring
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000681290700001
WOS关键词	NULES CITRUS TREES ; SOIL-WATER CONTENT ; DEFICIT IRRIGATION ; CROP COEFFICIENTS ; LEMON TREES ; FRUIT-GROWTH ; WEIGHING LYSIMETER ; GAS-EXCHANGE ; PEACH-TREES ; SAP FLOW
WOS类目	Horticulture
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/2XILL650/368296
作者单位	[Mira-Garcia, A. B.; Vera, J.; Conejero, W.; Conesa, M. R.; Ruiz-Sanchez, M. C.] Ctr Edafol & Biol Aplicada Segura, CEBAS CSIC, Dpto Riego, POB 164, Murcia 30100, Spain
推荐引用方式 GB/T 7714	Mira-Garcia, A. B.,Vera, J.,Conejero, W.,et al. Evapotranspiration in young lime trees with automated irrigation[J],2021,288.
APA	Mira-Garcia, A. B.,Vera, J.,Conejero, W.,Conesa, M. R.,&Ruiz-Sanchez, M. C..(2021).Evapotranspiration in young lime trees with automated irrigation.SCIENTIA HORTICULTURAE,288.
MLA	Mira-Garcia, A. B.,et al."Evapotranspiration in young lime trees with automated irrigation".SCIENTIA HORTICULTURAE 288(2021).