A preliminary evaluation of furrow inflow rate and cut-off time on the performance of smallholder raised bed farming systems
Presentation
Paper/Presentation Title | A preliminary evaluation of furrow inflow rate and cut-off time on the performance of smallholder raised bed farming systems |
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Presentation Type | Presentation |
Authors | Akbar, G. (Author), McHugh, A. D. (Author), Raine, S. R. (Author) and Hamilton, G. (Author) |
Journal or Proceedings Title | Proceedings of the 5th World Congress on Conservation Agriculture incorporating 3rd Farming Systems Design Conference (WCCA 2011) |
ERA Conference ID | 80185 |
Number of Pages | 2 |
Year | 2011 |
Place of Publication | Canberra, Australia |
Web Address (URL) of Paper | http://aciar.gov.au/WCCApapers |
Conference/Event | WCCA 2011: Resilient Food Systems for a Changing World |
Event Details | WCCA 2011: Resilient Food Systems for a Changing World Resilient food systems for a changing world Event Date 26 to end of 29 Sep 2011 Event Location Brisbane, Australia |
Abstract | Irrigated raised bed farming systems in north-west Pakistan are characterised by short furrow lengths (30 to 100 m), narrow bed widths (65 to 75 cm furrow spacing) and blocked ends. Wide beds (typically 130 cm furrow spacing) have recently been introduced and shown (Akbar et al. 2007) to produce agronomic benefits but are not in common usage. In general, 5 to 10 furrows are concurrently irrigated from small head channels with the time to cut-off determined by flow arrival at the end of the furrow and/or furrow filling. Management is often poor with varying furrow inflow rates, frequent overtopping of beds, problems with wetting front penetration (i.e. subbing) into beds and the potential for substantial deep percolation losses (Akbar et al. 2007). The purpose of this study was to evaluate the irrigation performance of narrow and wide raised bed systems under farmer managed conditions and to identify the potential to improve performance using simple irrigation management strategies. |
Keywords | efficiency; uniformity; subbing |
ANZSRC Field of Research 2020 | 300299. Agriculture, land and farm management not elsewhere classified |
300403. Agronomy | |
300201. Agricultural hydrology | |
Public Notes | No evidence of copyright restrictions preventing deposit. |
Byline Affiliations | National Centre for Engineering in Agriculture |
Department of Agriculture and Food, Western Australia | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0y14/a-preliminary-evaluation-of-furrow-inflow-rate-and-cut-off-time-on-the-performance-of-smallholder-raised-bed-farming-systems
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