You are here

seed bank

Categorised under:

Catalogue: GRDC Media
Trials underline value of reducing weed seeds at harvest.. Trials across south eastern Australia have demonstrated the importance of targeting weed seeds at harvest to reduce the prevalence of weeds in cropping systems... Evaluation of three harvest weed seed control systems - chaff carts, windrow burning and the Harrington Seed Destructor (HSD) - has shown that all three systems are similarly effective in reducing the emergence of annual ryegrass and the control of herbicide resistant populations...
Related categories:
Catalogue: GRDC Media
A new online resource is a good first 'port of call' for Western Australian growers seeking information about managing summer weeds, which are currently widespread... Growers know that weeds allowed to grow during a fallow will use available soil water, use soil nitrogen and add seeds to the seed bank, increasing weed pressure and control costs in following seasons... The Hot Topic includes information to assist them in best managing summer weeds, including herbicide timing and how to maximise the performance of double-knock applications...
Related categories:
Catalogue: GRDC Media
Evaluation of three harvest weed seed control systems - chaff carts, windrow burning and the Harrington Seed Destructor (HSD) - has shown that all three systems are similarly effective in reducing the emergence of annual ryegrass and the control of herbicide resistant populations... "All three systems - chaff carts, windrow burning and the HSD - target the chaff fraction during harvest and if they are all working efficiently then they will produce the same result.".. At 13 locations across the southern cropping region during the 2011 harvest, the HSD was evaluated alongside chaff cart and narrow windrow burning systems for its ability to reduce annual ryegrass emergence in the following growing season...
Related categories:
Catalogue: GRDC YouTube channel
" GCTV15: Harvest Weed Seed Control 19 November 2014 Harvest provides a strategically important time for grain growers to apply weed seed control... 33.789: Mike Walsh: Australian Herbicide Resistance Initiative 35.19: OK Ben we've found a wild radish plant in your crop, so if we use our handy reference 40.379: tool to check out our harvest height we can see that even though this is an immature 45.03: wild radish plant there's still a lot of pods and every one of those pods is above 49.999: our harvest height so they/re all going to go into your chaff cart... 300.56: Mike Walsh: Growers have got the message they really need 303.49: to drive their populations down to very low levels towards eradication and it's that attitude 310.16: that is going to help them into the future because they're now tolerating much lower 314.73: weed densities in their cropping systems and that just means that weed control practices 320.47: become much more sustainable...
Related categories:
Catalogue: GRDC Media
Michael Widderick, Queensland Department of Agriculture, Fisheries and Forestry (DAFF) says seed banks need to be reduced to decrease weed pressures and the key is stopping seed set... Dr Widderick says for many small-seeded weeds, such as feathertop Rhodes grass and fleabane, the seed bank is relatively short lived (one to two years), so a concerted effort for a short period of time will enable growers to quickly get on top of troublesome weeds... Dr Widderick says fleabane is a difficult to control weed and an over-reliance on glyphosate for fallow weed control has resulted in populations becoming glyphosate resistant...
Related categories:
Catalogue: GRDC Media
Controlling weed seed at harvest may be growers' best line of defence in combatting the on-going battle against herbicide resistance... With headers now dotted across winter crop paddocks in New South Wales and Queensland, the Grains Research and Development Corporation (GRDC) is reminding growers that driving down the weed seed bank is critical to managing herbicide resistance... "Driving down the weed seed bank is growers' best defence against herbicide resistance and that centres on two key considerations - dealing with the weed seeds already existing in the soil and stopping additional weed seeds from entering the soil...
Related categories:
Catalogue: GRDC Media
Peter Newman from AHRI says that very high weed seed banks can be eroded to low, near-zero levels by committing to a five-component stacked approach... By combining five essential measures and repeating the exercise year after year, growers can run down seed banks even when experiencing high levels of herbicide resistance on their farms... "The five components of a successful strategy are a double knock of herbicides; mixing and rotating chemicals; competitive crops; stopping seed set; and harvest weed seed control," Mr Newman said...
Related categories:
Catalogue: GRDC Media
Peter Newman from AHRI says that very high weed seed banks can be eroded to low, near-zero levels by committing to a five-component stacked approach... By combining five essential measures and repeating the exercise year after year, growers can run down seed banks even when experiencing high levels of herbicide resistance on their farms... "The five components of a successful strategy are a double knock of herbicides; mixing and rotating chemicals; competitive crops; stopping seed set; and harvest weed seed control," Mr Newman said...
Related categories:
Catalogue: GRDC Updates (North)
Crops achieve their maximum potential yield at maturity any delay between maturity and harvest results in yield and quality losses... The greater the number of say, wild oats, in your paddock, the greater the chance of having plants which will be resistant to Group A herbicides... As ESP in soil increases, clay particles move apart and the soil disperses...
Related categories:
Catalogue: GRDC Updates (South)
Crops achieve their maximum potential yield at maturity any delay between maturity and harvest results in yield and quality losses... The greater the number of say, wild oats, in your paddock, the greater the chance of having plants which will be resistant to Group A herbicides... As ESP in soil increases, clay particles move apart and the soil disperses...
Related categories:

Pages