Comparison of barley variety, row spacing and nitrogen timing on grain yield, weed incidence and disease

2007
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Mark Steele (La Trobe University)
Rohan Wardle (SFS)
Year(s) 2007
Contributor Southern Farming Systems
Trial location(s) Inverleigh, VIC
Comparison of barley variety, row spacing and nitrogen timing on grain yield, weed incidence and disease locations
Aims

1. Assess the potential yield loss/gains when increasing the seed row width for the benefits of subsequent inter‐row (no‐till) cropping;
2. To determine if nitrogen application efficiency can be increased in wider row spacing by applying the nitrogen either as an up front or in crop treatment;
3. To assess the varietal yield response to row spacing width, in response to nitrogen timing and row widths;
4. To assess weed incidence and disease pressure across each seed row width to determine crop competition factors.

Key messages

In 2007, wider row spacings (400mm vs 200mm) significantly (P<0.01) reduced yield (4.36t/ha vs 4.69t/ha) when averaged across five barley varieties and two nitrogen timings, suggesting that the benefits of wider row sowing for crop residue management practices are coming at a significant financial cost ($100/ha+, using current prices). However, the barley variety WI with nitrogen applied at
sowing (GS00) achieved the opposite result, as wider row spacings (400mm vs 200mm) significantly (P<0.05) increased yield (5.15t /ha vs 4.31t/ha).

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAN00104
Related program N/A
Acknowledgments

Special thanks to the Hamilton family for allowing us the use of the Inverleigh research site and thanks to “Barley agronomy for southern Australia” for their support of this trial.


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

Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Crop: Variety
  • Fertiliser: Timing
  • Sowing: Row Spacing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Inverleigh 2007

Sow rate or Target density 80kg/ha
Sow date 27 June 2007
Harvest date 21 January 2008
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Grain yield (t/ha)
1 Gairdner None 4.21
2 Capstan None 5.09
3 VBO432 None 4.3
4 Wabar None 4.17
5 WI None 4.83
6 Gairdner GS00 N 4.15
7 Capstan GS00 N 5.32
8 VBO432 GS00 N 4.15
9 Wabar GS00 N 4.1
10 WI GS00 N 4.77
11 Gairdner GS 31 N 4.28
12 Capstan GS 31 N 4.87
13 VBO432 GS 31 N 4.45
14 Wabar GS 31 N 4.23
15 WI GS 31 N 4.89
16 Gairdner 400mm row 3.98
17 Capstan 400mm row 4.82
18 VBO432 400mm row 4.23
19 Wabar 400mm row 3.8
20 WI 400mm row 4.98
21 Gairdner 300mm row 4.25
22 Capstan 300mm row 5.14
23 VBO432 300mm row 4.36
24 Wabar 300mm row 3.99
25 WI 300mm row 4.81
26 Gairdner 200mm row 4.42
27 Capstan 200mm row 5.33
28 VBO432 200mm row 4.32
29 Wabar 200mm row 4.72
30 WI 200mm row 4.7

Grain yield t/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Inverleigh, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Inverleigh, VIC Sodosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Inverleigh VIC
2007 455.4mm
2006 467.8mm
2005 491.2mm
2004 438.6mm
2003 416.4mm
2002 399.6mm
2001 472.4mm
2000 448.5mm
National soil grid Source: CSIRO/TERN
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

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Inverleigh VIC

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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 report and links

2007 trial report



Trial last modified: 24-01-2023 15:25pm AEST