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Improving vineyard water use efficiency and yield with variable rate irrigation in California

Published online by Cambridge University Press:  01 June 2017

L. A. Sanchez ,
B. Sams ,
M. M. Alsina ,
N. Hinds ,
L. J. Klein  and
N. Dokoozlian
L. A. Sanchez*
Affiliation:
E. & J. Gallo Winery, 1541 Cummins Drive, Modesto, California 95353, USA
B. Sams
Affiliation:
E. & J. Gallo Winery, 1541 Cummins Drive, Modesto, California 95353, USA
M. M. Alsina
Affiliation:
E. & J. Gallo Winery, 1541 Cummins Drive, Modesto, California 95353, USA
N. Hinds
Affiliation:
T. J. Watson Research Center, IBM, Yorktown Heights, NY, USA
L. J. Klein
Affiliation:
T. J. Watson Research Center, IBM, Yorktown Heights, NY, USA
N. Dokoozlian
Affiliation:
E. & J. Gallo Winery, 1541 Cummins Drive, Modesto, California 95353, USA
*
†E-mail: [email protected]
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Abstract

A variable rate drip irrigation (VRDI) system was implemented in early 2013 in a 4.05-ha area inside a drip-irrigated Cabernet Sauvignon vineyard measuring 12.5 total ha. The VRDI area was split into 140 15×15-meter irrigation zones which were watered independently during three seasons with weekly schedules based on estimated actual ET. Irrigation was scheduled with the objective of decreasing spatial variability while maintaining high yields. Compared to an adjacent, 4.05-ha, conventionally drip irrigated section of the vineyard (CDI); VRDI increased yield and water use efficiency in all three years and decreased spatial dependency and structure in 2013 and 2015.

Keywords

variable rate drip irrigationwine grapesVitis vinifera L.yield map
Type
Precision Irrigation
Information
Advances in Animal Biosciences , Volume 8 , Special Issue 2: Papers presented at the 11th European Conference on Precision Agriculture (ECPA 2017), John McIntyre Centre, Edinburgh, UK, July 16–20 2017 , July 2017 , pp. 574 - 577
Copyright
© The Animal Consortium 2017 

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