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Catalogue: GRDC Updates (West)
Mention of a trade name or company in this publication does not imply endorsement of any product or company by the Department of Agriculture and Food, Western Australia... Overall, the DAFWA indices suggest that a more optimistic approach to decision-making is recommended in 2006 and confidence in this assessment would be enhanced if a La Ni a develops... The needs analysis has enabled an assessment of the distribution of farmers along the pathway from initial awareness through to final adoption of CRM information and tools being offered by various organisations...
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Catalogue: GRDC Media
Ravensthorpe grower Bevan Tuckett with an instruments station being used to map different soil types for their responsiveness to nitrogen treatments and their water-holding capacity... A SMP is permanently installed and works by sensing moisture in close proximity (about a 10cm radius) to the probe, recording this information and sending it via a cable to a telemetry unit and data logger... More than 50 SMPs have been installed in recent years across WA's broadacre cropping areas in a range of trials supported by GRDC, CSIRO, the Department of Agriculture and Food WA (DAFWA), advisers, grower groups and other industry stakeholders...
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Catalogue: Ground Cover
Figure 1 Growth of wheat plants treated with Hoag land nutrient solutions of varying salinity.. Experiments in our project have shown that transient salinity - accumulation of salt in root zone layers not influenced by the watertable - affects crop yield and growth in dryland regions, mainly by reducing water-use efficiency of crops through osmotic effect... Hoagland solution was used to reduce the specific ion toxicity to a minimal level and find out the effects of osmotic pressure, irrespective of the type of salt...
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Catalogue: GRDC Research Summaries
Based on the data, a number of biochars will be selected for detailed field and laboratory-based experiments to assess the different aspects of the biochar on crop nutrition and associated soil properties... The project (in collaboration with project CSO00041, Evelyn Krull CSIRO) uses a combination of fundamental and applied experiments to assess the potential fit of biochar into current and future farming systems with a particular focus on plant nutrient acquisition... 4) A web-calculator to assess the effect of biochar on crop productivity Research iIn conjunction with the DAFF national biochar initiative, the project team assembled over 80 different biochars (from different sources and produced under different temperature regimes) which have been analysed for various functions, such as C content, pH, CEC, adsorption capacity, stability, water-holding capacity, porosity and specific surface area...
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Catalogue: GRDC Research Summaries
Based on the data, a number of biochars will be selected for detailed field and laboratory-based experiments to assess the different aspects of the biochar on crop nutrition and associated soil properties... Organic manures and green waste materials show promise in augmenting the use of mineral fertilisers in cropping systems, whilst the use of biochar may have a role in sequestering carbon and improving the nutrient retention capacity of soils... The project (in collaboration with project CSO00041, Evelyn Krull CSIRO) uses a combination of fundamental and applied experiments to assess the potential fit of biochar into current and future farming systems with a particular focus on plant nutrient acquisition...
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Catalogue: GRDC YouTube channel
" Using soil moisture probes to make better farming decisions 20 November 2014 South Australian grain grower Tom Robinson, Halbury, talks about his experiences using soil moisture probes on the family farm... The way 139.189: I'm looking at it now is that possibly we might be able to grow a winter cover crop 143.049: to make more ground cover and also have a diverse mix of a cover crop in there, and 148.4: then we'll kill that crop and then sow sunflowers into it... We're drying out 166.43: our profile; by having a winter cover crop we're growing more cover, more ground cover; 171.769: we're creating more diversity; we're getting a legume back into our system; and then we're 176.209: also able, by doing that, to grow a different crop, a summer crop, which is hopefully better 183.7: for our end goal which is soil health...
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Catalogue: GRDC Research Summaries
Enhanced efficiency fertilisers (EEFs), including slow release compounds and urease and nitrification inhibitors, show promise for improving efficiency, increasing management flexibility, and reducing N2O emissions... Enhanced efficiency fertilisers, including controlled release fertilisers and fertilisers amended with urease or nitrification inhibitors, show promise for improving nitrogen use efficiency... The main objective of the project is to assess the benefits of enhanced efficiency fertilisers, particularly nitrification inhibitors, in mitigating nitrous oxide emissions and increasing the efficiency of nitrogen fertilisers for a range of agricultural industries, including cropping (Victoria and NSW), sugarcane (Queensland) and dairy (Victoria), under different climatic conditions that are found across Australia...
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Catalogue: GRDC Media
New GRDC research tackles return to tillage.. Dr Yash Dang, Department of Science, Information Technology, Innovation and the Arts (DSITIA) says many grain growers are resorting to cultivation to manage problem grass weeds... Chemical: soil carbon status (including fractionating soil carbon into pools with differing lability), profile mineral nitrogen and potentially mineralisable nitrogen in labile organic fractions, phosphorus, potassium and zinc, and crop nitrogen and phosphorus uptake...
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Catalogue: GRDC Media
Moisture retention and VRT paying off for Egans.. To improve their profitability and productivity, Scaddan growers Gavin and Elaine Egan pay keen attention to summer weed control and in recent seasons have introduced variable-rate technology (VRT) for application of inputs... In 2012, the Egans returned to a blanket rate in their fertiliser applications after a hailstorm at the end of 2011 wiped out most of their cereals, leaving little harvest data for the yield mapping on which VRT applications are based...
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Catalogue: GRDC Final Reports
The paper summarises the results from 11 Department of Agriculture Western Australia (DAWA) scientific field trials carried out between 1997 and 2005 to evaluate the impact of herbicides on new pasture legume species... Always refer to herbicide labels and seek specialist advice before applying herbicides to pastures... Arrowleaf Clover (CefaluA) Herbicide Spinnaker 200 - 300 mL Diuron (500ai) 750 mL Dual Gold 500 mL Broadstrike 25 g Broadstrike 25 g + Diuron (500ai) 100 200 mL Raptor 45 g Raptor 15 g + Bromoxynil 370 mL Spinnaker 250 - 300 mL Bromoxynil 1500 mL Simazine (500ai) 750 - 1500 mL Jaguar 500 mL Tigrex 400 - 500 mL MCPA (500ai) amine 750 - 1000 mL Kerb 1500 mL 99 Go 95..
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