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Rhizosphere priming regulates soil carbon cycle under high carbon dioxide. Australian farmers will be producing crops under elevated CO2 in the future. However, it is unknown how the increased CO2 level will affect agricultural production and soil health. This project aims to understand the effect of high atmospheric CO2 on carbon and nitrogen cycles in major cropping soils. It will examine how combinations of crop and soil types lead to differences in loss of soil organic carbon. Soil microorga ....Rhizosphere priming regulates soil carbon cycle under high carbon dioxide. Australian farmers will be producing crops under elevated CO2 in the future. However, it is unknown how the increased CO2 level will affect agricultural production and soil health. This project aims to understand the effect of high atmospheric CO2 on carbon and nitrogen cycles in major cropping soils. It will examine how combinations of crop and soil types lead to differences in loss of soil organic carbon. Soil microorganisms that link to carbon and nitrogen cycling in soils will be examined in the long-term field trials. The project intends to provide fundamental information that is essential to evaluate the future impact of climate change on the fertility and productivity of our poor, already infertile soils in semi-arid regions.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100271
Funder
Australian Research Council
Funding Amount
$452,005.00
Summary
Synthetic microbiome: improving crop nitrogen acquisition and productivity. Challenges to food security under conditions of global climate change are forcing us to increase crop production to feed the growing population. Focusing on the plant–microbe interactions, represent a promising area in the search for tools to address this challenge. This project aims to develop a three-step- framework that allows researchers to systematically and reproducibly investigate crop microbiomes to enable us to ....Synthetic microbiome: improving crop nitrogen acquisition and productivity. Challenges to food security under conditions of global climate change are forcing us to increase crop production to feed the growing population. Focusing on the plant–microbe interactions, represent a promising area in the search for tools to address this challenge. This project aims to develop a three-step- framework that allows researchers to systematically and reproducibly investigate crop microbiomes to enable us to design a ‘Beneficial Biome’, a biologically based solution for improving agricultural productivity and environmental sustainability under constrained conditions, where limited resources are available to fertilize.Read moreRead less
Unraveling the spread of antibiotic resistance genes across soil food webs. The emerging spread of antibiotic resistance genes (ARGs) in the environment is a major threat to public health and food security. This project aims to develop new knowledge about the key transmission routes of ARGs across multiple trophic levels in soil food webs, and how the interactions of plant, soil and fauna contribute to the profiles of environmental ARGs. Expected outcomes include an improved understanding of the ....Unraveling the spread of antibiotic resistance genes across soil food webs. The emerging spread of antibiotic resistance genes (ARGs) in the environment is a major threat to public health and food security. This project aims to develop new knowledge about the key transmission routes of ARGs across multiple trophic levels in soil food webs, and how the interactions of plant, soil and fauna contribute to the profiles of environmental ARGs. Expected outcomes include an improved understanding of the role of fauna in regulating ARGs in the soil environment and the spreading mechanisms of antibiotic resistance in soil food webs. This project will contribute to the development of evidence-based interventions to tackle environmental antibiotic resistance, which has benefits for the environment and public health.
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Industrial Transformation Research Hubs - Grant ID: IH200100023
Funder
Australian Research Council
Funding Amount
$4,950,000.00
Summary
ARC Research Hub for Innovative Nitrogen Fertilisers and Inhibitors. This Hub aims to transform agriculture by delivering a new class of nitrogen (N) fertilisers and inhibitors designed to stem the 50-80% losses to the environment in current products. It is intended to generate new knowledge and valuable intellectual property in controlled released and coated N fertiliser products using a novel co-design process involving representatives of the whole value chain from product design through to va ....ARC Research Hub for Innovative Nitrogen Fertilisers and Inhibitors. This Hub aims to transform agriculture by delivering a new class of nitrogen (N) fertilisers and inhibitors designed to stem the 50-80% losses to the environment in current products. It is intended to generate new knowledge and valuable intellectual property in controlled released and coated N fertiliser products using a novel co-design process involving representatives of the whole value chain from product design through to validation and adoption. The project estimates possible 20% gains in efficiency of N use, delivering large costs savings, improved productivity, increased profitability and decreased environmental impacts, helping the Australian food and agribusiness sector to reach its 2030 target of $100B value added.Read moreRead less
Contribution of comammox bacteria to soil nitrification. This project aims to understand the diversity, activity and environmental relevance of comammox bacteria, the newly-discovered complete nitrifiers, in Australian soils, and to evaluate their relative contributions to nitrification processes compared to other canonical nitrifying prokaryotes. Nitrogen transformations are pivotal microbial processes, with nitrification largely responsible for nitrogen losses through nitrous oxide emissions a ....Contribution of comammox bacteria to soil nitrification. This project aims to understand the diversity, activity and environmental relevance of comammox bacteria, the newly-discovered complete nitrifiers, in Australian soils, and to evaluate their relative contributions to nitrification processes compared to other canonical nitrifying prokaryotes. Nitrogen transformations are pivotal microbial processes, with nitrification largely responsible for nitrogen losses through nitrous oxide emissions and nitrate leaching in the terrestrial ecosystems. The expected outcomes will develop new knowledge on the comammox bacteria and provide novel insights into refined strategies to manipulate nitrification processes for improved nitrogen use efficiency and sustainable agricultural management.Read moreRead less
Unravelling soil carbon response to warming in fire-affected ecosystems. This project aims to reveal the continental pattern of soil carbon (C) response to warming in fire-affected ecosystems across Australia and to unravel the biogeochemical mechanisms underlying fire’s role in shaping the temperature sensitivity of soil respiration. Fire has modified over 40% of the Earth’s land surface and wildfire frequency is predicted to increase under global warming. This project expects to generate new k ....Unravelling soil carbon response to warming in fire-affected ecosystems. This project aims to reveal the continental pattern of soil carbon (C) response to warming in fire-affected ecosystems across Australia and to unravel the biogeochemical mechanisms underlying fire’s role in shaping the temperature sensitivity of soil respiration. Fire has modified over 40% of the Earth’s land surface and wildfire frequency is predicted to increase under global warming. This project expects to generate new knowledge on how fire influences soil-to-atmosphere C fluxes in a warmer climate using a multi-disciplinary approach. Expected outcomes include an enhanced capacity to predict the terrestrial ecosystem-to-atmosphere C fluxes and their feedbacks to climate under increasing frequency of fire using Earth-system models. Read moreRead less
Developing a novel carbon negative fertiliser . Food security is vital to support our growing population. However, our increasing reliance on intensive farming systems necessitates increased fertiliser use, leading to increased water pollution and soil degradation - threatening both the Australian environment and food security. Increasing carbon storage capacity by soil and decreasing fertiliser use are two of the primary pathways for restoring the bio-support capacity of soils and reducing farm ....Developing a novel carbon negative fertiliser . Food security is vital to support our growing population. However, our increasing reliance on intensive farming systems necessitates increased fertiliser use, leading to increased water pollution and soil degradation - threatening both the Australian environment and food security. Increasing carbon storage capacity by soil and decreasing fertiliser use are two of the primary pathways for restoring the bio-support capacity of soils and reducing farming footprints. This innovative and first-of-its-kind project aims to develop a cost-effective, carbon negative fertiliser that reduces fertiliser inputs and increases soil carbon storageRead moreRead less