Permanent raised bed configurations and renovation methods affect crop performance
Paper
Paper/Presentation Title | Permanent raised bed configurations and renovation methods affect crop performance |
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Presentation Type | Paper |
Authors | Akbar, Ghani (Author), Hamilton, Greg (Author) and Raine, Steven (Author) |
Editors | Gilkes, Robert J. and Prakongkep, Nattaporn |
Journal or Proceedings Title | Proceedings of the 19th World Congress of Soil Science (WCSS 2010) |
Number of Pages | 4 |
Year | 2010 |
Place of Publication | Melbourne, Australia |
ISBN | 9780646537832 |
Web Address (URL) of Paper | http://www.iuss.org/19th%20WCSS/Symposium/pdf/1938.pdf |
Conference/Event | 19th World Congress of Soil Science (WCSS 2010): Soil Solutions for a Changing World |
World Congress of Soil Science | |
Event Details | 19th World Congress of Soil Science (WCSS 2010): Soil Solutions for a Changing World Event Date 01 to end of 06 Aug 2010 Event Location Brisbane, Australia |
Event Details | World Congress of Soil Science WCSS |
Abstract | Permanent raised bed (PRB) configurations and renovation methods vary throughout the world depending on soil type, cropping pattern, farmer preferences, available machinery and local expertise. An increase in the bed width generally increases land use efficiency due to a smaller cropped land loss due to furrows. However, PRB configuration and seasonal pre-sowing renovation need careful selection due to their influence on crop production. Two experiments investigating PRB systems used for wheat-maize rotations were conducted over a ten year period on a silty clay loam in Pakistan. The use of PRBs generally resulted in higher yield, lower water application and higher Gross Production Water Use Indices (IGP) compared to traditional flat basin systems. Wide (180 cm) beds produced higher wheat (15%) and maize (26%) yields than the flat basin treatment during the first experiment. Maize yields were 10% higher than the basin treatment in the second experiment involving narrow (65 cm) and medium (130 cm) width beds while wheat yields were only marginally (<5%) higher. The lower water application in the PRB compared to basin treatments was found to be closely related to bed width. The narrow beds used 3-7% less water than the basins while the medium and wide beds used 16-17% and 18-22% less, respectively. The difference in IGP between the basin and PRB treatments was also found to be closely related to bed width with the IGP ranging from 13-18%, 30-31% and 43-70% higher for the narrow, medium and wide beds, respectively. Substantial differences in both bulk density and hydraulic conductivity were also found between the basin and bed treatments. Within the PRB treatments, the soil bulk density was lower and hydraulic conductivity higher when machinery track widths were matched to furrow spacing and bed renovation was conducted using horizontal blades which minimised bed disturbance and soil inversion. |
Keywords | irrigation performance; lateral wetting; land preparation; zero till bed planter |
ANZSRC Field of Research 2020 | 300210. Sustainable agricultural development |
409901. Agricultural engineering | |
410601. Land capability and soil productivity | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | National Centre for Engineering in Agriculture |
Department of Agriculture and Food, Western Australia |
https://research.usq.edu.au/item/q0118/permanent-raised-bed-configurations-and-renovation-methods-affect-crop-performance
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