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summer weed control

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Catalogue: Ground Cover
Stop moisture and nitrogen loss: manage summer weeds.. Trials highlight the value of controlling weeds to prevent losses of nitrogen and soil moisture in summer fallows... "The trials highlighted the importance of controlling summer weeds to conserve nitrogen as well as moisture," Mr McMaster says...
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Catalogue: GRDC Updates
Managing for least cost rather than most profit.. In summary - For the effort of spraying the paddock twice over summer and an investment of $30/ha, a gain could be achieved in the following wheat crop of $105/ha.. P fertiliser should not be broadcast prior to seeding in 2008 because this approach is only justified in situations where soil P reserves are high and dressings are designed to maintain those reserves - in 2008 simply do not broadcast those paddocks and use the money saved on other inputs which will return better profits...
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Catalogue: GRDC Updates
Optimising water use efficiency in western NSW.. The relative merit of different rotation crops can also be assessed by looking at the amount of water they extract from the soil profile... Research has shown that canola is better able to extract phosphorus (P) from soil than wheat (Bolland and Brennan 2008) meaning that maximum yield of canola can be achieved with lower P application than is required for wheat...
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Catalogue: Ground Cover
Tighter fallow management gives wheat best chance.. Photo of two men inspecting wheat.. While June was wet, with 100mm of rain recorded, July and August turned dry, and Graham says the crop appeared to "turn blue", or die, because of a lack of moisture...
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Catalogue: Ground Cover
Tighter fallow management gives wheat best chance.. Photo of two men inspecting wheat.. While June was wet, with 100mm of rain recorded, July and August turned dry, and Graham says the crop appeared to "turn blue", or die, because of a lack of moisture...
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Catalogue: GRDC Media
Western Australian growers are urged to control summer weeds as soon as possible, even it means getting out the boomspray while completing harvesting programs... Significant rainfall in late spring and summer has triggered widespread germination of weeds and 'volunteers' from the 2011 crop... "By doing it later, valuable moisture and nutrients are lost from the soil, the weeds will be larger and more expensive to kill, and you will have created a 'green bridge' allowing pests and diseases to carry over to the next crop," Mr Burnett said...
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Catalogue: GRDC Updates
Controlling summer weeds increased: - Canola grain yield by 830 kg/ha where full weed control was implemented... Plant available water (mm) for each of the four spray treatments measured at sowing... Level of mineral nitrogen (kgN/ha) for four spray treatments measured at sowing...
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Catalogue: GRDC Updates (West)
" Agribusiness Crop Updates 2010 Herbicide control of slender iceplant Lorinda Hunt, Department of Agriculture and Food, Western Australia, Three Springs, Andrew Blake, Department of Agriculture and Food, Western Australia, Geraldton Research conducted by L Hunt... In the short stubble-no chaff plots (where stubble biomass was lowest), water rate did not have a large impact on annual ryegrass control, although Sakura was more effective at the high water rate... In the short stubble-chaff plots, all herbicides were more effective at the high water rate...
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Catalogue: Ground Cover
Stop moisture and nitrogen loss: manage summer weeds.. Trials highlight the value of controlling weeds to prevent losses of nitrogen and soil moisture in summer fallows... "The trials highlighted the importance of controlling summer weeds to conserve nitrogen as well as moisture," Mr McMaster says...
Related categories:
Catalogue: GRDC Media
GRDC western regional panellist Chris Wilkins says research into 'emerging weeds' in WA includes weed surveys and experiments to develop and demonstrate appropriate control tactics... In WA, Northam-based Department of Agriculture and Food (DAFWA) researcher Abul Hashem is leading work under the projects 'Seed bank biology of emerging weeds' and 'Improving integrated weed management (IWM) practice of emerging weeds in the southern and western regions'... Summer weed species that are glyphosate tolerant are causing problems, including button grass, fleabane, tar vine, windmill grass, sowthistle and caltrop...
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