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A Review of Current and Potential Applications of Remote Sensing to Study the Water Status of Horticultural Crops

School of Agriculture, Food and Wine, The University of Adelaide, PMB 1, Glen Osmond, SA 5064, Australia
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Agronomy 2020, 10(1), 140; https://doi.org/10.3390/agronomy10010140
Received: 25 August 2019 / Revised: 10 December 2019 / Accepted: 9 January 2020 / Published: 17 January 2020
(This article belongs to the Special Issue Increasing Agricultural Water Productivity in a Changing Environment)
With increasingly advanced remote sensing systems, more accurate retrievals of crop water status are being made at the individual crop level to aid in precision irrigation. This paper summarises the use of remote sensing for the estimation of water status in horticultural crops. The remote measurements of the water potential, soil moisture, evapotranspiration, canopy 3D structure, and vigour for water status estimation are presented in this comprehensive review. These parameters directly or indirectly provide estimates of crop water status, which is critically important for irrigation management in farms. The review is organised into four main sections: (i) remote sensing platforms; (ii) the remote sensor suite; (iii) techniques adopted for horticultural applications and indicators of water status; and, (iv) case studies of the use of remote sensing in horticultural crops. Finally, the authors’ view is presented with regard to future prospects and research gaps in the estimation of the crop water status for precision irrigation. View Full-Text
Keywords: UAS; UAV; drone; unmanned; satellite; water stress; irrigation; vegetation index UAS; UAV; drone; unmanned; satellite; water stress; irrigation; vegetation index
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Gautam, D.; Pagay, V. A Review of Current and Potential Applications of Remote Sensing to Study the Water Status of Horticultural Crops. Agronomy 2020, 10, 140.

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