Journal article

Identifying fertiliser management strategies to maximise nitrogen and phosphorus acquisition by wheat in two contrasting soils from Victoria, Australia

VM Dunbabin, RD Armstrong, SJ Officer, RM Norton

AUSTRALIAN JOURNAL OF SOIL RESEARCH | CSIRO PUBLISHING | Published : 2009

Abstract

Crop yield and profitability in the dryland production systems of southern Australia are directly affected by the application of nitrogen (N) and phosphorus (P) fertilisers. How efficiently a crop utilises applied fertiliser is affected by several factors that interact in a complex way, including: nutrient mobility, soil type and soil physicochemical and biological factors, season (including rainfall amount and distribution), and crop physiology. In addition, nutrient supply and crop demand need to synchronise both temporally and spatially if nutrient use efficiency is to be optimised. In this study, the mechanistic simulation model, ROOTMAP, was used to investigate and generate hypotheses a..

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Grants

Awarded by Grains Research and Development Corporation through the Nutrient Management Initiative


Funding Acknowledgements

This work was co-funded by the Grains Research and Development Corporation through the Nutrient Management Initiative (Project UM00023). ROOTMAP has been developed as a collaborative partnership between The Grains Research and Development Corporation, The Department of Agriculture and Food Western Australia, The Centre for Legumes in Mediterranean Agriculture at the University of Western Australia, The University of Tasmania, and Dr V. Dunbabin.