Understanding reaction products of granular and fluid P fertilisers in Australian soils: a way to enhance fertiliser efficiency. Despite posing significant challenges for crop P nutrition, alkaline soils are widespread in Australia and their agricultural use accounts for a significant fraction of the crop production nationwide. The benefits of fluid fertilizers over conventional granular products in these soils has been agronomically demonstrated. Knowledge of the behaviour of these products, pr ....Understanding reaction products of granular and fluid P fertilisers in Australian soils: a way to enhance fertiliser efficiency. Despite posing significant challenges for crop P nutrition, alkaline soils are widespread in Australia and their agricultural use accounts for a significant fraction of the crop production nationwide. The benefits of fluid fertilizers over conventional granular products in these soils has been agronomically demonstrated. Knowledge of the behaviour of these products, provided through an understanding of the fundamental mechanisms and reactions occurring, is critical to improve crop productivity. This project aims to study the reactions of fluid and granular fertilizers in soils using advanced spectroscopic and isotopic techniques, in order to provide a scientific basis for improving formulations and effectiveness.Read moreRead less
Explaining the interactions between drought and fertiliser use efficiency using tracing and imaging techniques. With climate change, Australian agriculture is faced with periods of increasing drought and changing rainfall patterns. At the same time, Australian farmers are faced with increasing costs of fertiliser inputs (their largest variable input cost), yet have little information on how they should change their nutrient management programs to suit the changing climatic conditions. This proje ....Explaining the interactions between drought and fertiliser use efficiency using tracing and imaging techniques. With climate change, Australian agriculture is faced with periods of increasing drought and changing rainfall patterns. At the same time, Australian farmers are faced with increasing costs of fertiliser inputs (their largest variable input cost), yet have little information on how they should change their nutrient management programs to suit the changing climatic conditions. This project aims to determine the effect of drought and rainfall patterns on the efficiency of fertiliser use by crops, through examination of the effects of soil moisture conditions on the interaction between soil and added fertilisers. Read moreRead less
Alleviating herbicide damage to crops by using fulvate and manganese. Glyphosate is a widely used herbicide, but its drift can cause growth depression in sensitive plants such as wheat by reducing uptake of metallic micronutrients, particularly manganese. In pot and field trials, this project aims to assess the alleviating potential of fulvate and manganese on growth and micronutrient uptake by wheat exposed to glyphosate drift. The influence of land management on the effect of these treatments ....Alleviating herbicide damage to crops by using fulvate and manganese. Glyphosate is a widely used herbicide, but its drift can cause growth depression in sensitive plants such as wheat by reducing uptake of metallic micronutrients, particularly manganese. In pot and field trials, this project aims to assess the alleviating potential of fulvate and manganese on growth and micronutrient uptake by wheat exposed to glyphosate drift. The influence of land management on the effect of these treatments will also be assessed. The underlying mechanisms will be characterised, eg. by determining metal speciation in soil and assessing soil microbial community composition. The outcome of this project will contribute to sustainable agriculture by giving land managers options to reduce glyphosate damage in sensitive crops.Read moreRead less
Spatial and temporal monitoring of soil erosion risk with satellite imagery. This project is directed towards Sustainable farm practices, one of the national priorities in the Caring for Our Country program. The satellite image-based monitoring system will provide new information about the changing distribution of erosion risk in seasonal cropping systems, and identify areas where agricultural practices significantly influence this risk. The research will allow landholders, regional, state and n ....Spatial and temporal monitoring of soil erosion risk with satellite imagery. This project is directed towards Sustainable farm practices, one of the national priorities in the Caring for Our Country program. The satellite image-based monitoring system will provide new information about the changing distribution of erosion risk in seasonal cropping systems, and identify areas where agricultural practices significantly influence this risk. The research will allow landholders, regional, state and national authorities to better target effort towards sustainable land management, and improve monitoring and reporting of land condition across broad agricultural regions. Dynamic monitoring of erosion risk will also track landscape conditions and farmer responses to changing climate.Read moreRead less
A soil ecological approach to increasing Australian crop productivity. The objective of this project is to use emerging genomics technologies to identify and characterize soil bacteria that allow the replacement of current agricultural fertilisers, which have significant environmental and economic disadvantages, with sustainable biological fertilisers. Soil bacteria can greatly enhance phosphate solubilization and hence availability for plant growth. Beneficial microbes will be identified from o ....A soil ecological approach to increasing Australian crop productivity. The objective of this project is to use emerging genomics technologies to identify and characterize soil bacteria that allow the replacement of current agricultural fertilisers, which have significant environmental and economic disadvantages, with sustainable biological fertilisers. Soil bacteria can greatly enhance phosphate solubilization and hence availability for plant growth. Beneficial microbes will be identified from our existing soil collection and their performance and persistence optimised. Concurrently, our industry partners will develop suitable microbial formulations for application. The outcomes of the project will be the use of biological fertilisers to enhance crop productivity in an environmentally sustainable manner.Read moreRead less