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row orientation

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Catalogue: GRDC Updates (West)
Project No.: DAW 672 Paper reviewed by: David Minkey and Abul Hashem Crop Updates is a partnership between the Department of Agriculture, Western Australia and the Grains Research & Development Corporation 20.. The negative impact of Raptor and Spinnaker on herbage production observed in the 4 advanced breeding lines (Crop Updates 2004) was not reflected as lower seed set... Overall, 2,4-D and Gramoxone were the most damaging to legume seed production; this reflected the impact of these treatments on herbage production (Crop Updates 2004)...
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Catalogue: Ground Cover
With multiple resistance occurring in some weed species, such as ryegrass and wild oats, there is an increasing need for growers to use some non-chemical measures to improve the effectiveness of their herbicides... "WA has been running this kind of trial since 2002 and has consistently found that an east-west crop orientation decreases weed biomass by 30 to 50 per cent," Mr Brooke says... "Obviously 66cm is an excessively wide row space for winter cereals, but the trial showed that the effect of row space is real and measurable, and can add significantly to other weed-control practices," Mr Brooke says...
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Catalogue: GRDC Updates
At Merredin and Beverley in W.A east - west sowing gave 24% yield increase in cereals and a 37 to 54% suppression in weed biomass... Recent work with barley varieties shows there is as much difference between barley varieties as there can be between crop types... Figure 1 summarises a barley competition trial conducted at Trangie in 2013 and shows the capacity of different varieties to yield both with and without weeds and the yield loss incurred by weeds (oats)...
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