The challenge of weed control in wide row lupins in Western Australia
Document Type
Conference Proceeding
Publication Date
1-2007
Conference Title
Society for Engineering in Agriculture 2007 National Conference: Agriculture and Engineering: Challenge Today, Technology Tomorrow
Place of Publication
Canberra
ISBN
0858257556
Keywords
Grasses, Ryegrasses, Weed Control, Lupins
Disciplines
Agricultural Science | Agronomy and Crop Sciences | Weed Science
Abstract
Wide row lupin sowing systems (greater than 50 cm wide rows) are becoming common in Western Australia. This allows growers to control inter-row weeds by inter-row cultivation or spraying non-selective herbicides using shielded sprayers.
In this study, inter-row shielded spraying was found to be the most effective treatment for annual ryegrass control in the 66 cm wide rows but future herbicide resistance will be a major limitation. With shielded spraying, some form of inter-row weed control will still be necessary to significantly reduce weed seed set. Automatic tractor steering control would also be essential for commercial growers to adopt shielded spraying.
Inter-row cultivation reduced annual ryegrass biomass by 63% and the number of annual ryegrass heads by 43% but this did not result in a significant increase in lupin yield. To be most effective, it is suggested that inter-row cultivation should be done relatively early while the weeds are small and when the soil is relatively warm and dry with rain not predicted for a day or two. Inter-row shielded spraying with glyphosate gave the best ryegrass biomass control averaging 97%.
Recommended Citation
Riethmuller, G. P., Hashem, A., & Pathan, S. M. (2007). The Challenge of Weed Control in Wide Row Lupins in Western Australia. In Society for Engineering in Agriculture 2007 National Conference: Agriculture and Engineering: Challenge Today, Technology Tomorrow. Australian Society of Engineering in Agriculture. https://search.informit.org/doi/10.3316/informit.532579938496161
