A5080914216- Soil Carbon and Nitrogen Dynamics
- Irrigation Practices and Water Management
- Crop Yield and Soil Fertility
- Soil and Water Nutrient Dynamics
- Soil and Unsaturated Flow
- Soil Management and Crop Yield
- Soil Geostatistics and Mapping
- Agricultural Science and Fertilization
- Water resources management and optimization
- Hydrology and Watershed Management Studies
- Economic and Environmental Valuation
- Horticultural and Viticultural Research
- Climate change impacts on agriculture
- Soil erosion and sediment transport
- Plant Micronutrient Interactions and Effects
- Plant Physiology and Cultivation Studies
- Wheat and Barley Genetics and Pathology
- Nitrogen and Sulfur Effects on Brassica
- Agronomic Practices and Intercropping Systems
- Geochemistry and Geologic Mapping
- Polymer-Based Agricultural Enhancements
- Agricultural Economics and Policy
- Groundwater flow and contamination studies
- Conservation, Biodiversity, and Resource Management
- Sugarcane Cultivation and Processing
Agri Food and Biosciences Institute
2021-2025
James Hutton Institute
2017-2021
Wagga Wagga Base Hospital
2012-2018
Charles Sturt University
2010-2015
The University of Melbourne
2007-2012
Wine Australia
2008-2010
The management of optimal soil pH is fundamental to sustainable crop production. Understanding the lime requirement for arable crops has developed gradually over last several decades. aim this study was examine yield-pH relationship a range understand their response liming, based on Long-Term Liming experiments established in 1962 at Rothamsted Research, UK. main treatments four different rates and, therefore, distinctly levels were maintained 35 years two sites (Rothamsted and Woburn)....
The effect of previous crops (oilseed, legume, and cereal) on the incidence severity crown rot (Fusarium pseudograminearum, Fp) yield wheat was investigated in 3 field studies northern New South Wales. experiments were designed to compare effectiveness Brassica break canola (Brassica napus L.) mustard (B. juncea with chickpea (Cicer arietinum reduction Fp subsequent crops. Responses broadleaf cereal Fp-tolerant bread (Triticum aestivum Fp-susceptible durum [Triticum turgidum L. ssp....
Measurement of changes in soil organic carbon (SOC) under various management practices at the field scale poses significant challenges due to inherent spatial and temporal variability.  In comparison ecosystem biogeochemical models offer a robust framework for simulating nutrient cycling, SOC, greenhouse gas emissions that can be used identify evaluate long-term effects strengths climate change mitigation strategies. DayCent is coupled soil-plant dynamic model has been widely...
Nitrogen fertilization is the most critical agronomic input affecting barley production and farm profitability. The strict quality requirements for malting are challenging to achieve farmers. In addition, soil variability weather conditions can affect yield quality. Thus, objectives of this study (a) quantify properties, (b) use spatial data in a crop simulation model, quantifying impacts climate−soil interactions on grain Based historical maps, commercial field was divided into different...
This study examined the relationship between soil structure and solute transport in a texture contrast under 2 different tillage treatments—raised beds conventional cultivation—in south-western Victoria. Undisturbed samples were collected for resin-impregnation image analysis. enabled several descriptive parameters of macropore to be calculated. Large, undisturbed also experiment using KCl solution. A convective log-normal transfer function was used model Cl– movement. The assessment showed...
A better understanding of how land management might affect soil respiration can greatly help enhancing the long-term sustainability agricultural soils. This study investigated effects two key practices, nutrient fertilization and tillage, on in an intensive grassland system. Data were collected from a experiment established 1970 Northern Ireland, UK. The commenced with eight treatments: unfertilised control, inorganic fertiliser (NPK), types slurry: cattle pig slurry at three application...
Abstract Liming induces several positive effects on soil processes, although the specific nature of these impacts is variable for some properties such as extractable phosphorus. The aim this study was to analyse long‐term effect liming phosphorus (Olsen P) concentrations, together with corresponding pH and P uptake by different crops. crop data were collected from two experiment sites at Rothamsted Research contrasting texture (Rothamsted Woburn). had significant Olsen a silty loam sandy...
Abstract Liming has widespread and significant impacts on soil processes crop responses. The aim of this study was to describe the relationships between exchangeable cation concentrations in relative yield spring barley. hypothesis that is restricted by concentration a single soil. For simplicity, we focused barley which grown nine years long-term experiment at two sites (Rothamsted Woburn). Four liming rates were applied each year (RY) cations assessed. had highly effects most cations,...
Abstract Liming is a common management practice, but there exists uncertainty about the economic benefits. An analysis of costs and profitability liming arable crops was undertaken using data from long‐term experiment at Rothamsted Woburn. There strong effect on gross margins, large differences in benefit between crops. For some (such as spring barley), greatly improved margin, while for oats provided very little increase. Most achieved with high lime treatment, cumulative discounted cash...
The effect of increasing rates potassium (K) fertiliser was studied on a soil with base exchangeable K values ≤ 0.1 cmol(+)/ kg by assessing biomass, feed quality, mineral concentration and grain yield for wheat, triticale canola. crops showed variable biomass response to at early plant growth stages, however anthesis there were significant positive responses K. A rate detected quality increases in metabolisable energy. Irrespective sampling time, resulted crop ratios, such as the Tetany...
Most soils in eastern Australian contain abundant soil potassium (K) reserves, and it is often assumed that there are no problems with K status. However, deficiency has been reported selected locations, for viticulture, potential high concentrations due to the application of winery wastewater. This study investigated different variables plant six distinctive properties from across central southern New South Wales determine presence understand effect adding on dynamics availability. A...
Crop production in south-western Victoria has historically been constrained by waterlogging. As a result raised beds have recently become popular tillage method on soils prone to Soil water properties, air-filled porosity, plant dry matter, and grain yield were compared for conventional cultivation treatments during 2003 2004. Although rainfall was less than the long-term average, over whole period had consistently lower content drained faster cultivation. Air-filled porosity greater above...
For many years, the poor physical and hydraulic properties of soils in south-western Victoria have restricted crop production due to waterlogging. In this region predominantly winter rainfall, raised beds become popular with farmers overcome these difficulties; however, little has been reported on hydrology compared other tillage systems for cropping rain-fed environment Victoria. This study measured rainfall characteristics, runoff volumes, soil such as water content, bulk density,...