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Water, nutrients & greenhouse in land systems PDF Print E-mail

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This group works to inform the management of water and nutrients to improve agricultural profitability, environmental quality and the delivery of ecosystem services for the sustainable prosperity of rural and urban communities.  The research activities are primarily applied combined with some basic processes and theoretical studies and development research.

The group’s strength in applied and basic research includes:

The study of water, nitrogen and phosphorus dynamics in soil-plant systems, in particular:
•    Water dynamics: plant water requirements, efficiency of irrigation water, surface run off, deep drainage and losses to the atmosphere (evapotranspiration), waste water re-use;
•    Nutrients dynamics: nutrient transformations in soil, plant uptake and processes of off-site nutrient loss;
•    Gaseous nitrogen losses (denitrification, ammonia volatilization and nitrous oxides) and greenhouse gas (N2O and CH4) emissions. The group has established the first and only set of the open path laser/FTIR - micrometeorological system in Australia for measurement of gas fluxes in terrestrial systems;
•    Fate of soil and fertilizer nitrogen and phosphorus influenced by management practices and climate variability and;
•    System modeling, the group has developed an internationally recognized process-based and spatially referenced water and nitrogen management model (WNMM).

The group’s strength in development research:

Improving management of water and fertilizers for agricultural profitability and environmental quality:
•    Indicators of sustainable management in intensive agriculture;
•    Managing subsoil constraints (salinity, sodicity and boron toxicity) to crop productivity;
•    Development of efficiency-enhanced fertilizers, controlled release fertilizers and stabilized fertilizers (containing urease and nitrification inhibitors) and evaluation of slow release P fertilizers;
•    Development of strategies to improve the efficiency of water delivery and use on-farm in Victoria;
•    Development of a user friendly GIS based agricultural decision support system (ADSS) for optimising irrigation practices and fertilizer application using process models that balance economic and environmental interests and;
•    Development of a hand held computer (PDA) based ADSS.

 
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Water, nutrients & greenhouse in land systems

This group works to inform the management of water and nutrients to improve agricultural profitability, environmental quality and the delivery of ecosystem services for the sustainable prosperity of rural and urban communities.  The research activities are primarily applied combined with some basic processes and theoretical studies and development research.

The group’s strength in applied and basic research includes:

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