Ian Johnson

ASKBILL as a web-based program to enhance sheep well-being and productivity

LP Kahn, IR Johnson, JB Rowe, L Hogan, J Boshoff

Journal article  |  2017  |  Animal Production Science

ASKBILL is a web-based program that uses farm measurements, climate data and information on genetics to predict pasture growth, an..

A model of milk production in lactating dairy cows in relation to energy and nitrogen dynamics

IR Johnson, J France, BR Cullen

Journal article  |  2016  |  Journal of Dairy Science

Process modelling to assess the sequestration and productivity benefits of soil carbon for pasture

Rachelle Meyer, Brendan R Cullen, Ian R Johnson, Richard J Eckard

Journal article  |  2015  |  Agriculture, Ecosystems & Environment

The challenges - and some solutions - to process-based modelling of grazed agricultural systems

VO Snow, CA Rotz, AD Moore, R Martin-Clouaire, IR Johnson, NJ Hutchings, RJ Eckard

Journal article  |  2014  |  Environmental Modelling & Software

Northern Australian pasture and beef systems. 2. Validation and use of the Sustainable Grazing Systems (SGS) whole-farm biophysical model

Natalie A Doran-Browne, Steven G Bray, Ian R Johnson, Peter J O'Reagain, Richard J Eckard

Journal article  |  2014  |  Animal Production Science

The challenges of incorporating urine and dung patches in process-based modelling of grazed agricultural systems

VO Snow, RJ Eckard, CA Rotz, IR Johnson, NJ Hutchings

Conference Proceedings  |  2014  |  Proceedings - 7th International Congress on Environmental Modelling and Software: Bold Visions for Environmental Modeling, iEMSs 2014

The challenges and opportunities when integrating animal models into grazing system models for evaluating productivity and environmental impact

RJ Eckard, VO Snow, IR Johnson, AD Moore

Journal article  |  2014  |  Animal Production Science

A generic model of growth, energy metabolism, and body composition for cattle and sheep

IR Johnson, J France, JHM Thornley, MJ Bell, RJ Eckard

Journal article  |  2012  |  Journal of Animal Science

A generic model of growth, energy metabolism, and body composition for cattle and sheep

IR Johnson, MJ Bell, RJ Eckard, J France, JHM Thornley

Journal article  |  2012  |  Journal of Animal Science

Using soil water content to predict pasture growth rates

BR Cullen, IR Johnson

Conference Proceedings  |  2012  |  Proceedings of the 16th Agronomy Confernece 2012