Legume effects on soil N and wheat grain yield

2014

Research organisaton
Funding source

Trial details

Researcher(s) Sarah Noack and Peter Hooper (Hart Field Site Group)
Year(s) 2014
Contributor Hart Field Site Group
Trial location(s) Site 5, Hart, SA
Legume effects on soil N and wheat grain yield locations
Aims

To determine the effect of various legume treatments on the grain yield and quality of subsequent wheat production

Key messages

Available soil N at the start of 2014 was 20-50 kg N/ha higher for legume treatments compared to wheat. Starting soil N did not affect grain yield for nil or additional N applied treatments. Differences in grain protein were correlated to starting soil N levels

Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Trial funding source HFSG members
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Wheat
Treatment type(s)
  • Crop: Rotation
  • Fertiliser: Rate
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Hart 2014

Sow date 15 May 2014 15 May 2014
Harvest date Not specified
Plot size 5m x 10m
Plot replication 3
Fertiliser

DAP + 2% Zn @ 60 kg/ha plus in-season N as specified in treatments

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Treatment 2
Protein (%) Grain N yield (kgN/ha) Grain yield (t/ha) Pre sowing soil nitrogen (kg N/ha)
1 Mace Wheat following field pea - Low seeding rate peas (65 kg/ha) 0 kg N/ha 10.1 86 4.84 92
2 Mace Wheat following field pea - High seeding rate peas (160 kg/ha) 0 kg N/ha 9.6 81 4.8 96
3 Mace Wheat following field pea inoculated with peat inoculum down tube - Medium sowing rate peas (120 kg/ha) 0 kg N/ha 9.7 84 4.96 92
4 Mace Wheat following field pea cut for hay - Medium sowing rate peas (120 kg/ha) 0 kg N/ha 9.8 84 4.93 97
5 Mace Wheat following field pea brown manure - Medium sowing rate peas (120 kg/ha) 0 kg N/ha 11.1 95 4.9 124
6 Mace Wheat following chickpeas - PBA Striker @ 100 kg/ha 0 kg N/ha 11.1 94 4.83 124
7 Mace Wheat following wheat 0 kg N/ha 74
8 Mace Wheat following field pea - Low seeding rate peas (65 kg/ha) 60 kg N/ha 11.1 89 4.57 92
9 Mace Wheat following field pea - High seeding rate peas (160 kg/ha) 80 kg N/ha 11.2 92 4.68 96
10 Mace Wheat following field pea inoculated with peat inoculum down tube - Medium sowing rate peas (120 kg/ha) 55 kg N/ha 11.3 93 4.69 92
11 Mace Wheat following field pea cut for hay - Medium sowing rate peas (120 kg/ha) 80 kg N/ha 12.1 95 4.48 97
12 Mace Wheat following field pea brown manure - Medium sowing rate peas (120 kg/ha) 25 kg N/ha 11.9 91 4.39 124
13 Mace Wheat following chickpeas - PBA Striker @ 100 kg/ha 50 kg N/ha 11.8 97 4.7 124
14 Mace Wheat following wheat 50 kg N/ha 10 87 4.97 74

Grain yield t/ha


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Grain N yield kgN/ha


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Pre sowing soil nitrogen kg N/ha


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Protein %


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 5, Hart, SA Calcarosol
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 5, Hart, SA Chromosol
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

Site 5, Hart SA 2014


Observed climate information

Rainfall trial gsr (mm) 280mm

Derived climate information

Site 5, Hart SA

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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.



Trial last modified: 06-06-2019 15:18pm AEST