Role of stubble management in improving soil fertility. In highly-weathered nutrient-poor soils of the south-western Australia, the amount of nutrients in stubble is critical in nutrient cycling as well as in determining optimal amounts of fertilisers to be applied. Stubble management is therefore an integral part of crop fertilisation and nutrient management. We will characterise nutrient cycling in the stubble-soil-crop continuum in a range of cropping situations. Computer modelling will be us ....Role of stubble management in improving soil fertility. In highly-weathered nutrient-poor soils of the south-western Australia, the amount of nutrients in stubble is critical in nutrient cycling as well as in determining optimal amounts of fertilisers to be applied. Stubble management is therefore an integral part of crop fertilisation and nutrient management. We will characterise nutrient cycling in the stubble-soil-crop continuum in a range of cropping situations. Computer modelling will be used to extend applicability of results over space and time. This project will provide the knowledge required for improving fertiliser recommendations to take into account changes in the cropping systems that have occurred in the last 10-20 years.Read moreRead less
Enhanced efficiency fertilisers for agricultural sustainability and environmental quality. Expected benefits will come from reduced environmental impact and improved profitability of farming. These include: demonstrably reduced emissions of nitrogen gases (nitrous oxide (a greenhouse gas), nitric oxide (ozone active), and ammonia (a pollutant and secondary greenhouse gas); less nitrate leaching, soil acidification and nitrogen contamination of water resources; increased flexibility in timing and ....Enhanced efficiency fertilisers for agricultural sustainability and environmental quality. Expected benefits will come from reduced environmental impact and improved profitability of farming. These include: demonstrably reduced emissions of nitrogen gases (nitrous oxide (a greenhouse gas), nitric oxide (ozone active), and ammonia (a pollutant and secondary greenhouse gas); less nitrate leaching, soil acidification and nitrogen contamination of water resources; increased flexibility in timing and method of fertiliser application; reduced requirement for nitrogen fertiliser, and; helping farmers adapt to future climatic and elevated CO2 conditions. These outcomes will significantly improve and help protect the future financial and environmental conditions of rural Australia, and improve our national greenhouse account. Read moreRead less