Managing lateral infiltration on wide beds in clay and sandy clay loam using Hydrus 2D

Akbar, Ghani and Raine, Steven and McHugh, Allen David and Hamilton, Greg (2015) Managing lateral infiltration on wide beds in clay and sandy clay loam using Hydrus 2D. Irrigation Science, 33 (3). pp. 177-190. ISSN 0342-7188

Abstract

The water productivity of wide beds is largely constrained by poor lateral infiltration. Therefore, field trials were conducted to quantify soil moisture distribution on two soils using three renovation methods [no tillage (NT), shallow cultivation (SC) and blade ploughing (BP)] and four furrow water heads. The aim was to explore strategies for improving lateral infiltration using Hydrus 2D simulation techniques. The results showed increased lateral infiltration and soil water storage with BP, increased vertical infiltration and deep drainage with SC and reduced infiltration with NT treatments. Interestingly, the maximum wetting time of a 2 m wide bed on the clay was ~20 h with NT at a 4-cm furrow water head. This seems achievable under the Australian field conditions. However, the minimum wetting time of a 1.3 m wide bed on the sandy clay loam was 15 h with BP at full furrow water head, which is difficult to manage under short Pakistani furrows with quicker irrigation times. The evaluations and graphical presentations developed can enhance decision support for the optimised irrigation management and bed width design.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2014 Springer-Verlag. Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 03 May 2015 23:35
Last Modified: 30 Jun 2016 01:50
Uncontrolled Keywords: cultivation; decision support systems; irrigation; soil moisture; soils; wetting
Fields of Research : 07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070107 Farming Systems Research
05 Environmental Sciences > 0503 Soil Sciences > 050305 Soil Physics
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
Socio-Economic Objective: B Economic Development > 82 Plant Production and Plant Primary Products > 8298 Environmentally Sustainable Plant Production > 829805 Management of Water Consumption by Plant Production
Identification Number or DOI: 10.1007/s00271-014-0458-9
URI: http://eprints.usq.edu.au/id/eprint/27194

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