Soil sensing technology improves application of irrigation water

A.G. El-Naggar, C.B. Hedley, D. Horne, P. Roudier and B.E. Clothier

Agricultural Water Management, 2020, vol. 228, issue C

Abstract: Dynamic irrigation scheduling for Variable-rate irrigation systems is essential to accurately estimate the spatiotemporal pattern of irrigation water requirement. Real-time, sensor-based and soil-water balance scheduling methods were compared on a trial under a Variable-rate center pivot irrigation system. The soil-water balance scheduling used the FAO56-ET model to calculate daily soil-water deficits and to determine crop water requirements using climate data from a local climate station. The sensor-based scheduling system used a wireless soil moisture sensing network to trigger irrigation when soil water deficit reached a critical value in a web-based user interface. The scheduling was conducted on pea and French bean crop trials under one center pivot, with two delineated irrigation management zones at Massey University’s No.1 Farm, Palmerston North, New Zealand.

Keywords: Precision irrigation; Variable rate irrigation; Wireless sensor network; Soil moisture sensors; Soil water balance; Irrigation water use efficiency; Water productivity (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:228:y:2020:i:c:s0378377419308170

DOI: 10.1016/j.agwat.2019.105901

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