Estimating irrigation duration for high performance furrow irrigation on cracking clay soils
Article
Article Title | Estimating irrigation duration for high performance furrow irrigation on cracking clay soils |
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ERA Journal ID | 5245 |
Article Category | Article |
Authors | Smith, R. J. (Author), Uddin, M. J. (Author) and Gillies, M. H. (Author) |
Journal Title | Agricultural Water Management |
Journal Citation | 206, pp. 78-85 |
Number of Pages | 8 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0378-3774 |
1873-2283 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.agwat.2018.03.014 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0378377418301604 |
Abstract | Selection of an appropriate combination of flow rate and time to cut-off is critical to the achievement of high performance furrow irrigation. For the cotton growing regions of Australia the ready availability of land and the relative scarcity of water impose a constraint not present in all surface irrigation areas. In this situation the objective is to improve water use efficiency by maximising application efficiency. In this paper, simulations employing this strategy and historical furrow irrigation data have shown that application efficiency increases with flow rate up to a point where no further increase in efficiency is possible. They have also shown that for any field there is a simple linear relationship between time to cut-off and the time for the advance to reach mid-way down the field. This relationship provides a simple and robust guide for the selection of time to cut-off that requires no knowledge of the flow rate or soil moisture deficit. Application of the relationship delivers a significant increase in efficiency over that resulting from usual grower practice. |
Keywords | furrow irrigation; cut-off time; irrigation performance; infiltration |
ANZSRC Field of Research 2020 | 409901. Agricultural engineering |
300201. Agricultural hydrology | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | National Centre for Engineering in Agriculture |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4v77/estimating-irrigation-duration-for-high-performance-furrow-irrigation-on-cracking-clay-soils
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