Combating subsoil acidity for sustainable production through managing plant cation-anion uptake. At least 50 million hectares of topsoil and 23 million ha of subsoil of Australian land are presently affected by acidity, with this area expanding due to the ongoing processes of acidification. Surface liming is ineffective in neutralizing subsoil acidity. The project will develop an innovative method that stimulates root proliferation and ameliorates subsoil acidity through manipulating the balance ....Combating subsoil acidity for sustainable production through managing plant cation-anion uptake. At least 50 million hectares of topsoil and 23 million ha of subsoil of Australian land are presently affected by acidity, with this area expanding due to the ongoing processes of acidification. Surface liming is ineffective in neutralizing subsoil acidity. The project will develop an innovative method that stimulates root proliferation and ameliorates subsoil acidity through manipulating the balance of nutrient uptake by plants. The effects of the developed method on nutrient use efficiency and leaching loss, and crop yields will be quantified under different soil types and climatic conditions.Read moreRead less
Water and nutrient stress detection in broad acre crops using remote sensing. The national benefit of the remote sensing of water and nutrient levels in crops comes from improved agricultural practice; leading to cost savings, reduced water usage and reduced pollution. This benefit will arise since irrigation and fertiliser application can be exactly tailored to the measured needs of broad-acre crops. In Australia, water is a scarce resource. Reducing consumption by irrigators will have signi ....Water and nutrient stress detection in broad acre crops using remote sensing. The national benefit of the remote sensing of water and nutrient levels in crops comes from improved agricultural practice; leading to cost savings, reduced water usage and reduced pollution. This benefit will arise since irrigation and fertiliser application can be exactly tailored to the measured needs of broad-acre crops. In Australia, water is a scarce resource. Reducing consumption by irrigators will have significant downstream benefits. By remote measurement of nutrient variation within paddocks, fertiliser applications can be optimised. Minimum excess fertiliser will then be present and this will minimise runoff and potential downstream water pollution.Read moreRead less
Big data modelling to forecast crop yield to enable precision fertilisation. This project aims to lay a foundation for a generic data-driven approach to more precise management of our agricultural landscapes. A multitude of agriculture-related data streams are now available to growers to characterise their yield, management, soil and weather. However, currently there is no approach able to digest all these disparate data streams to enable a management decision. The project will develop an appro ....Big data modelling to forecast crop yield to enable precision fertilisation. This project aims to lay a foundation for a generic data-driven approach to more precise management of our agricultural landscapes. A multitude of agriculture-related data streams are now available to growers to characterise their yield, management, soil and weather. However, currently there is no approach able to digest all these disparate data streams to enable a management decision. The project will develop an approach to harness all of these data streams to guide spatially variable applications of nitrogen fertilisers with a focus on grains cropping. This should provide the opportunity to allocate fertiliser inputs as required at fine spatial scales according to local soil and weather conditions to maximise profit and minimise off-farm impacts of excessive fertilisation.Read moreRead less
Role of organic matter and soil biota in optimising crop nutrition in sustainable farming systems. Australian grain producers face increasing competition on the world market from countries with cheap production costs (China, Argentina, Brazil). This project will develop biological farming systems based on improving soil health and enhancing soil microflora and nutrient cycling. Western Australia and other states are currently defining certification guidelines for sustainable farming systems (inc ....Role of organic matter and soil biota in optimising crop nutrition in sustainable farming systems. Australian grain producers face increasing competition on the world market from countries with cheap production costs (China, Argentina, Brazil). This project will develop biological farming systems based on improving soil health and enhancing soil microflora and nutrient cycling. Western Australia and other states are currently defining certification guidelines for sustainable farming systems (including biological ones). Selling grain produced in certified biological farming system will attract market premium, therefore enhancing the position of Australian farmers. This project will produce fertiliser recommendation systems incorporating organic fertilisers, thus decreasing costs of production and maintaining clean and healthy environment.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
Towards improving the yield of Canola and other Brassicas during drought. One of the major problems faced by world agriculture is drought; this project should improve the yield of Canola during moderate to severe droughts. Significantly, this project includes both "traditional" non-genetically modified (GM) strategies and GM strategies to maximise the market for our drought-tolerant canola both in Australia and overseas.
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
Crop genome complexity: sulphur metabolism and mustard pungency. This project aims to explain the molecular basis of crop plant plasticity in the context of a complex crop genome. It will determine how epigenetic mechanisms contribute to regulating the yield of a secondary metabolite harvested from mustard plants in response to variation in environmental factors. Specifically it will explore the relationship between sulphur metabolism and small RNA regulation of glucosinolates. The project shoul ....Crop genome complexity: sulphur metabolism and mustard pungency. This project aims to explain the molecular basis of crop plant plasticity in the context of a complex crop genome. It will determine how epigenetic mechanisms contribute to regulating the yield of a secondary metabolite harvested from mustard plants in response to variation in environmental factors. Specifically it will explore the relationship between sulphur metabolism and small RNA regulation of glucosinolates. The project should uncover the role that duplicated genetic loci and epigenetic marks play in regulating tissue-specific gene networks, particularly in field-grown environments. The project will explore how duplication of genes enables a crop such as mustard to respond to application of sulphur fertiliser and regulate the stockpiling of the 'hot' volatile oil in mustard seed, a valuable export commodity.Read moreRead less
Responding to the threat of climate change: identifying effective strategies for the wheat industry of south-east Australia. This project will first evaluate the probable impacts of climatic change and variability on wheat production in southern Australia and will then assess the effectiveness of actual and potential adaptive management strategies designed to mitigate these impacts. The expected outcomes will include quantified impacts of future climate change and variability on wheat productio ....Responding to the threat of climate change: identifying effective strategies for the wheat industry of south-east Australia. This project will first evaluate the probable impacts of climatic change and variability on wheat production in southern Australia and will then assess the effectiveness of actual and potential adaptive management strategies designed to mitigate these impacts. The expected outcomes will include quantified impacts of future climate change and variability on wheat production in southern Australia, identification of regions at greater risk in the future and least likely to be viable in the longer run, and identification of effective adaptive management strategies designed to cope with these risks.Read moreRead less
Characterisation of soil microbial interactions for increased efficacy of herbicides using novel fertiliser management practices. Soil microbes are essential for nutrient cycling and plant root growth. This project aims to investigate whether herbicides influence soil biological processes when different types of fertilisers are used. It is expected that complex interactions between fertiliser practice and herbicides will alter herbicide efficacy in weed control. This project aims to compare nove ....Characterisation of soil microbial interactions for increased efficacy of herbicides using novel fertiliser management practices. Soil microbes are essential for nutrient cycling and plant root growth. This project aims to investigate whether herbicides influence soil biological processes when different types of fertilisers are used. It is expected that complex interactions between fertiliser practice and herbicides will alter herbicide efficacy in weed control. This project aims to compare novel fertiliser practices claimed to maximise benefits from soil microbial processes with traditional fertiliser practices which can override biological processes, including beneficial plant-microbial symbioses. This will enable a rigorous evaluation of fertiliser-herbicide interactions to clarify whether soil microbial benefits can be included as part of weed control programs.Read moreRead less