Approach for using trunk growth rate (TGR) in the irrigation scheduling of table olive orchards

M. Corell, M.J. Martín-Palomo, D. Pérez-López, A. Centeno, I. Girón, F. Moreno, A. Torrecillas and A. Moriana

Agricultural Water Management, 2017, vol. 192, issue C, 12-20

Abstract: The management of regulated deficit irrigation with a continuous measurement of the water status would allow obtaining an accurate estimation of the water needs. However, although different types of sensors are available, the threshold and daily management of these data are not clearly defined. Trunk diameter fluctuations are a good example of these type of data. The trunk growth rate (TGR) is considered an early indicator in olive trees. However, the daily TGR values are very changeable, and only cumulative values of TGR show a clear trend. The number of irrigation works using this indicator is scarce. The TGR thresholds considered in these papers are the average of values over a period, and this makes it difficult to use when preparing a daily schedule. The aim of this work is to present an approach that allows using daily TGR data.

Keywords: Maximum daily shrinkage; Regulated deficit irrigation; Trunk diameter fluctuations; Water potential (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:192:y:2017:i:c:p:12-20

DOI: 10.1016/j.agwat.2017.06.020

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