Matching nitrogen to variety

2012

Research organisatons

Trial details

Researcher(s) David Scholz (Elders Ltd) and Clare Johnston (Liebe Group)
Year(s) 2012
Contributor Liebe Group
Trial location(s) East Dalwallinu, WA
Matching nitrogen to variety locations
Aims

To evaluate yield and quality response of existing wheat varieties when treated at different nitrogen rates. Aiming to maximise nitrogen use efficiency by matching inputs to variety.

Key messages

Mace was the highest yielder with the best grain quality and being a hard variety gave the best gross margin. All other varieties didn’t make their base grade of APW2 with the exception of one Magenta treatment. Adding nitrogen had a negative impact on yields and therefore gross margins with the exception of Magenta 25N, which was able to scrape into a higher bin grade. 

Lead research organisation Elders Ltd
Host research organisation N/A
Related program N/A
Acknowledgments

Kalyx for managing the trial, Summit for their help and advice.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Wheat
Treatment type(s)
  • Fertiliser: Rate
  • Variety: Type
Trial type Experimental
Trial design Replicated

East Dalwallinu 2012

Sow rate or Target density 75 kg/ha
Sow date 7 June 2012
Harvest date Not specified
Plot size 12m x 2.5m
Plot replication 3
Paddock history 2009 wheat, 2010 wheat, 2011 wheat
Fertiliser

7/6/12: 75 kg/ha MAPSZC banded, 100 kg/ha SOP spread IBS

Herbicide

7/6/12: 1.5 L/ha Roundup, 2.5 L/ha Boxer Gold, 1.0 L/ha Trifluralin,

11/7/12: 25 g/ha Monza, 2% v/v DC Trate,

Insecticide

7/6/12: 1 L/ha Chlorpyriphos

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Hectolitre weight (kg/hL) Screenings (%) Biomass (unspecified) Gross margin ($/ha) Head abundance (heads/m2) Protein (%) Grain yield (t/ha)
1 Mace 0N 74.4 3.3 80 207.32 1.354 11.6 1.35
2 Mace 25N 74.5 4.5 80 86.11 1.051 13.1 1.05
3 Mace 50N 74.7 3.9 85 134.78 1.316 13.3 1.32
4 Mace 75N 73.7 5 92 83.85 1.307 13.9 1.31
5 Magenta 0N 73.9 3.9 82 43.56 0.928 12.2 0.93
6 Magenta 25N 74.3 3.2 87 59.68 0.966 13.5 0.97
7 Magenta 50N 73.3 5.3 87 -13.68 0.966 14.1 0.97
8 Magenta 75N 73.7 4.6 93 -29.61 1.032 14.6 1.03
9 Wyalkatchem 0N 73.4 3.5 80 66.51 1.013 12 1.01
10 Wyalkatchem 25N 71.1 6.1 82 25.2 0.985 13.3 0.99
11 Wyalkatchem 50N 70.9 6.2 83 -75 0.739 13.8 0.74
12 Wyalkatchem 75N 71.4 6.4 85 -101.16 0.767 14.4 0.77

Grain yield t/ha


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Biomass unspecified


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Gross margin $/ha


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Head abundance heads/m2


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Hectolitre weight kg/hL


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Protein %


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Screenings %


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
East Dalwallinu, WA 0 - 10cm Loamy Clay 5.60 0.04
East Dalwallinu, WA 10 - 30cm Loamy Clay
Soil conditions
Trial site Soil texture
East Dalwallinu, WA Red loam
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
East Dalwallinu, WA Kandosol
National soil grid Source
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

East Dalwallinu WA 2012


Observed climate information

Rainfall trial gsr (mm) 133mm

Derived climate information

East Dalwallinu WA

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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.




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