Grain mineral contents in southeastern Australia

Results of a survey of wheat grain nutrient concentrations


The objective of this project is to develop a data set of mineral contents of Australian wheat grown across southeastern Australia. There is little spatial data on wheat mineral contents, and this project will source grain samples from the National Variety Evaluations (see http://www. nvtonline. com. au/home. htm) which manages a large number of variety comparisions across the grain producing regions of Australia. Read more

Year of initiation:2010
Year of completion:2011


22 Mar 2017

To replace or not to replace? - that is the question
Nutrient replacement strategies

30 Sep 2014

Canola Seed Nutrient Concentrations
Regional values are needed

03 Sep 2013

Wheat Grain Micronutrient Content in Southeastern Australia
Poster paper presented at IPNC, Turkey

01 Sep 2012

Wheat grain nutrient concentrations: wide scale average values may not be adequate for field nutrient budgets
T Jensen and R Norton

01 Sep 2012

Nitrogen management for wheat in a variable climate
R Norton

16 Feb 2012

P Nutrient Removal and Replacement

23 Nov 2011

Nutrient content of wheat grain - a survey of NVT sites
A report on 140 grain samples analysed for nutrient content

13 Feb 2011

Keeping an eye on zinc levels

Interpretive Summary

Grain nutrient concentrations for macronutrients and micronutrients were analyzed from more than 70 NVT (National Variety Trials) sites across southeastern Australia. All nutrients tested showed significant differences among regions. Values for the macronutrient P were the most variable (3,329 ± 661 mg/kg) and was more than the commonly used value of 2,900 mg/kg.

The values reported show considerable regional differences, with N, P, K, and S showing coefficients of variation (CV) of 18%, 20%, 14%, and 13%, respectively. However, within each region, the CV’s for N, P, K, and S were usually less than 5%. There were some important exceptions to this, with P in southern New South Wales and with P, K, and S CV’s for the North East and North Central regions of Victoria, although these values were derived from the smallest subsets within the data.

There is little recent data on grain P, Zn, and S contents from across Australia. This project is collecting two wheat varieties that have been grown in approximately 100 variety testing sites across Victoria, New South Wales, and South Australia. As of mid-January, approximately 30 samples have been received and once all are available, they will be sent for mineral analysis at Adelaide University.

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Updates & Reports


Wheat grain nutrient concentrations in south-eastern Australia


2012 Annual Report


Grain mineral contents in southeastern Australia


Project Description

Zinc deficiency in wheat

Project Leader

Rob Norton, International Plant Nutrition Institute (IPNI)

Project Cooperators

Alan Bedggood, ACAS Ltd.
Robert Wheeler, South Australian Research and Development Institute
Frank Mcrae, Industry and Investment, New South Wales
Angela Clough, Victorian Department of Primary Industries
Harpreet Gill, Agrisearch Services Pty Ltd.

IPNI Staff

R. M. Norton


Oceania \ Australia and New Zealand \ AUS \ Victoria \ Multiple Sites

Oceania \ Australia and New Zealand \ AUS \ New South Wales \ Multiple Sites


4r place, 4r rate, crop quality, nutrient removal, plant analysis and sampling, soil variability


Boron (B), Calcium (Ca), Copper (Cu), Iron (Fe), Magnesium (Mg), Manganese (Mn), Nitrogen (N), Phosphorus (P), Potassium (K), Sulfur (S), Zinc (Zn)