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Catalogue: GRDC YouTube channel
" IWM: Weed Seed Destruction - Weed Seed Management 16 October 2013 Peter Newman from AHRI explains the importance of harvest weed seed capture and management for getting the weed seedbank into decline... Technology to reduce spray drift GCTV: Drift Reducing Technology..
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Catalogue: GRDC Research Summaries
The objective of the project is to develop a training and research resource in applied entomology that can serve the future needs of the Australian grains industry nation-wide... In Australia, as in other countries, there has been a decline in education and training courses in applied entomology such that the supply of trained researchers and field entomologist world-wide has decreased markedly... Plot and glasshouse trials for spider mites in maize and redlegged earth mites and aphids in canola indicate that insect pests prefer host plants affected by an imbalance of certain nutrients...
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Catalogue: GRDC Publications
Soil organic matter contributes to a range of biological, chemical and physical properties of soil and is essential for soil health... Soils rarely reach their theoretical potential for organic matter storage (see Figure 1.7)... In soils with low clay content the amount of humus and resistant soil organic matter is increasingly important to nutrient exchange because its large surface area gathers (adsorbs) cations from the soil solution, holding nutrients that would otherwise leach...
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Catalogue: GRDC Publications
Soil organic carbon makes up about 58 per cent of the mass of organic matter and is usually reported in a soil analysis report as the concentration (i.e. per cent) of organic carbon in soil (see Chapter 1 for more detail)... If a soil has a significant amount of gravel or stone material, this fraction is removed before analysis with the final soil carbon or nutrient assessment being only representative of the mineral component of the remaining soil... Understanding how organic matter cycles through the soil and what drives its accumulation and loss is critical to maintaining it at optimal levels within agricultural systems...
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