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Catalogue: GRDC Publications
The benefits improve crop health and crop competitive ability against weeds and the effectiveness of pre-emergent herbicides... When used as a post-emergent product, little of the herbicide gets to the roots and the control of established weeds is often very poor... benefits arise when the weed is prevented from setting seed as there are no increases to the seedbank and, as a consequence, fewer weeds in the future...
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Catalogue: GRDC Updates
The paper is about the motivations for putting WB into practice and about addressing some of the key concerns about the practicality of WB in NSW farming systems... Late season control of seed set with herbicide applications with products such as glyphosate, paraquat, diquat, 2,4-D and metsulfuron-methyl are widely used in other states and have registration in some situations in NSW... The alternative if we fail to adopt change can be found in WA, where many growers have to WB every paddock, every year if they wish to control their weed populations and continue to farm successfully...
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Catalogue: GRDC Media
Mr Street runs the Grains Research and Development Corporation (GRDC)- funded GOA and is well aware of the difficult issue of herbicide resistance... "I'm a zero-till cropper; I've got no livestock in the system and it's all winter crop at the moment," Mr Street said... "I took the straw spreaders and the spinners off and made up a cheap chute for the back, which probably cost me $100 in steel and a couple of hours in the workshop and it worked fine," Mr Street said...
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Catalogue: GRDC Updates (North)
Delaying the onset of stripe rust within a crop is the key to significantly reducing the risk of yield loss to this disease in 2005... Stripe rust specific seed treatments are not required and crops should simply be monitored early for the development of stripe rust and a foliar fungicide applied if severe early infection warrants it... With the exception of the 2002 drought year, yields were always higher in the LB treatment (Figure 3)...
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Catalogue: GRDC Updates (South)
Delaying the onset of stripe rust within a crop is the key to significantly reducing the risk of yield loss to this disease in 2005... Stripe rust specific seed treatments are not required and crops should simply be monitored early for the development of stripe rust and a foliar fungicide applied if severe early infection warrants it... With the exception of the 2002 drought year, yields were always higher in the LB treatment (Figure 3)...
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Catalogue: Ground Cover
Recent research suggests that nitrogen tie-up may improve the ability of soils to hold nitrogen in the root zone where it is most needed By Bernie Reppel.. CSIRO Land and Water scientist Jeff Baldock says the tie-up process can also be a positive in a wellfunctioning farming system if it improves the soil"s ability to hold nitrogen in the root zone, preventing it from leaching too far down for crop roots to reach... "Work by my fellow soil scientists Dr David Roget and Dr Gupta Vadakattu suggests that soils with good levels of biological activity can hold up to 40 kilograms of nitrogen per hectare in the root zone for subsequent release and use by plants," Dr Baldock says...
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Catalogue: Ground Cover
Do not rule out burning as an effective management tool, particularly with windrow burning rather than whole-paddock burning.. Our soils have more organic matter on the surface, are more friable and better retain water... There are ways to burn stubble that can still provide a good amount of surface cover to achieve all the benefits of retaining stubble, but that also give us all the benefits we know are available through the use of fire...
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Catalogue: Ground Cover
The machine was developed to eliminate weeds that germinate from weed seeds and residue placed onto tramlines using chaff deck systems.. While most weed seeds rot and become compacted by wheel traffic over time, the weed seeds that germinate have the capacity to develop resistance to multiple herbicides and herbicide groups.. Mr Knight says although the concept of burning weeds is not new, the use of shrouded burners to destroy weeds growing on tramlines in CTF systems is novel and early trial results suggest the technology has promise...
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Catalogue: Ground Cover
The machine was developed to eliminate weeds that germinate from weed seeds and residue placed onto tramlines using chaff deck systems.. While most weed seeds rot and become compacted by wheel traffic over time, the weed seeds that germinate have the capacity to develop resistance to multiple herbicides and herbicide groups.. Mr Knight says although the concept of burning weeds is not new, the use of shrouded burners to destroy weeds growing on tramlines in CTF systems is novel and early trial results suggest the technology has promise...
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Catalogue: Ground Cover
With herbicide-resistant weeds an increasing problem across the northern grains region, experts are looking to Western Australia for alternative methods of controlling weeds... Maurie Street from the Grain Orana Alliance says herbicide resistance is an increasing problem in northern grains production because many farming systems have moved to continuous cropping with nearly 100 per cent reliance on herbicides for weed control... Windrow burning is cheap and easy to set up, allowing growers to test the 'proof of concept' on their farms before making large investments in chaff carts or seed destructors "We need to start looking at new techniques for weed control - we shouldn't be expecting or relying on new herbicides to fix the problem," Mr Street says...
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