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subsoil

Catalogue: GRDC Publications
Barley Yellow Dwarf Virus can be a threat in all environments, and it is recommended that seed be treated with imidicloprid, or crops closely monitored for aphid infestation and sprayed ... In the circumstances using fertilisers that have a higher sulphur content, like MES 10 or Airseeder Superfect, can be beneficial... A fast track project was initiated to demonstrate and evaluate a range of management strategies that Twelve farms were surveyed across the western districts of southern Victoria that were considered suitable as potential trial sites based on grower and adviser recommendations...
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Catalogue: Ground Cover
Lime applications can reduce weed burdens in low pH soils.. Despite subsurface pH levels rising only marginally in the four-year period and not reaching the recommended pH of 4.8 for optimal crop root growth, yields for wheat, barley and lupins increased by an average of six to seven per cent (at two sites) where lime was applied... Long-term WA trial data show top-dressed lime that increases the surface pH to above 5.5 can take three to five years to significantly lift subsurface pH below 10 centimetres (longer for below 20cm) and improve crop yields...
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Catalogue: Ground Cover
Lime applications can reduce weed burdens in low pH soils.. Despite subsurface pH levels rising only marginally in the four-year period and not reaching the recommended pH of 4.8 for optimal crop root growth, yields for wheat, barley and lupins increased by an average of six to seven per cent (at two sites) where lime was applied... Long-term WA trial data show top-dressed lime that increases the surface pH to above 5.5 can take three to five years to significantly lift subsurface pH below 10 centimetres (longer for below 20cm) and improve crop yields...
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Concepts:
Catalogue: Ground Cover
Ryan Forsyth with his father, Rodney, have fine-tuned their approach to liming and seeding on their property at Kellerberrin, east of Perth... The endeavour has meant taking part in on-farm research trials and also undertaking and monitoring the everyday 'tweaking' of long-held practices in a bid to improve productivity, profitability and sustainability... A doubling of liming rates has allowed for more barley, which achieves a better margin than wheat, says Ryan, who runs the farm with his wife, Kerry, and his parents, Rod and Judi...
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Catalogue: Ground Cover
Ryan Forsyth with his father, Rodney, have fine-tuned their approach to liming and seeding on their property at Kellerberrin, east of Perth... The endeavour has meant taking part in on-farm research trials and also undertaking and monitoring the everyday 'tweaking' of long-held practices in a bid to improve productivity, profitability and sustainability... A doubling of liming rates has allowed for more barley, which achieves a better margin than wheat, says Ryan, who runs the farm with his wife, Kerry, and his parents, Rod and Judi...
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Catalogue: Broadacre Field Crops DAFF QLD
The project has focused on the main cropping soils of southern Queensland, where unpredictable responses to applied phosphorus fertiliser in grains and pulses are continuing to be recorded... Fifty per cent of phosphorus removed comes from below 10 cm... Phosphorus applied with seed only supplies approximately 10% of crop needs...
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Catalogue: Broadacre Field Crops DAFF QLD
The project has focused on the main cropping soils of southern Queensland, where unpredictable responses to applied phosphorus fertiliser in grains and pulses are continuing to be recorded... Fifty per cent of phosphorus removed comes from below 10 cm... Phosphorus applied with seed only supplies approximately 10% of crop needs...
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Catalogue: Broadacre Field Crops DAFF QLD
The project has focused on the main cropping soils of southern Queensland, where unpredictable responses to applied phosphorus fertiliser in grains and pulses are continuing to be recorded... Fifty per cent of phosphorus removed comes from below 10 cm... Phosphorus applied with seed only supplies approximately 10% of crop needs...
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Catalogue: GRDC Final Reports
The occurrence of high levels of salts, sodium and chlorides (Cl) in the northern grains region subsoils effectively reduces rooting depths, increases osmotic potential and chloride toxicity, and reduces the crop water use from the soil profile... The Decision Tree and toolkit developed in this project have become essential components of identifying and managing subsoil constraints (SSC) for advisers and growers... More recent research was carried out in project DNR00008 Advanced Techniques for Managing Subsoil Constraints...
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Catalogue: GRDC Final Reports
High-rainfall areas of south-east Australia (SEA) have potential for increased area of crop and increased yields... The scope of the project has been mostly confined to a review of past work and a broad theoretical analysis of the landscapes and soils of south-east Australia using existing data... Comparisons between field sensor data (EM and GRS), conventional analyses and predictions from MIRS were used to evaluate the field and laboratory surrogate technology for assessing soil variability...
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