1. Home ::  
  2. Trial Search

N mid-row banding in a post-rice crop

2017
CC BY 4.0

Research organisation
Funding sources
Western Murray Land Improvement Group Inc.
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> Murray Local Land Services Murray Irrigation Limited

Trial details

Researcher(s) James Brinkhoff (Centre for Regional )
Laura Kaylock (Western Murray Land Improvement Group)
Leigh Vial (Moulamein irrigation farmer )
Year(s) 2017
Contributor Western Murray Land Improvement Group Inc.
Trial location(s) Mallan, NSW
Related trials
N mid-row banding in a post-rice crop locations
Aims

This trial aimed to test mid-row banding of nitrogen in wheat after rice, in the presence and absence of waterlogging.

Key messages
  • The waterlogging event affected all treatments, such that both the chlorophyll content index (CCCI) and normalised difference red edge (NDRE) were similar for all treatments immediately after the water-logging event.
  • The topdressed treatments recovered better after the waterlogging event than the mid-row banding (MRB) treatments.
  • MRB showed an acceptable yield and apparent nitrogen recovery efficiency (ANRE) in both waterlogged and non-waterlogged conditions, but similar or less than N topdressing treatments. The topdressing treatments had surprisingly high ANRE.
  • The mid-row banded nitrogen declined during the season, presumably with nitrification and uptake. Some mid-row banded nitrogen was still evident 131 days after sowing.
  • The majority of the mid-row banded nitrogen was present as ammonium during the season, which allowed it survive the waterlogging event
Lead research organisation Western Murray Land Improvement Group Inc.
Host research organisation N/A
Trial funding source GRDC 9175353
Trial funding source Murray Local Land Services MY00808
Trial funding source Murray Irrigation Limited
Related program N/A
Acknowledgments

The support of GRDC, Murray Local Land Services and Murray Irrigation Limited is acknowledged for the conduct of the 2017 experiments. The extensive services of CeRRF and valuable input of John Angus, Sam North and John Blackman is acknowledged for the 2015 - 2018 experiments. Thank you to Peter Kaylock for the use of his N Tester. 
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser : Application Method
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Mallan 2017

Sow rate or Target density 85 kg/ha
Sowing machinery

Bettinson disc drill. 17 cm spacing.
Sow date 14 May 2017
Harvest date 3 December 2017
Plot size 40m x 8m
Plot replication 4
Plot blocking The waterlogging treatments (non-waterlogged (dry) and waterlogged (wet)) were bloocked
Plot randomisation A split plot design, with waterlogging treatments blocked in the main plots, and nitrogen treatments randomised in the sub-plots.
Fertiliser

All treatments received MAP 1% Zn at 150 kg/ha in the seed row.

Topdressed early (TE, before the waterlogging event), topdressed late (TL, after the waterlogging event) and mid-row banded (150MRB) treatments received 290 kg/ha of Urea. 

The mid-row banded (104MRB) received 190 kg/ha of Urea.
Herbicide
  • The site was sprayed with glyphosate 450 @ 1.6 L/ha plus Nail at 30 mL/ha and LI700 @ 350mL/100L prior to sowing.
  • Axial @ 300mL/ha plus Agidor @ 500mL/100L, a selective herbicide for grass weeds, was applied on July 10th.
Insecticide

Insect control was provided using Dominex Duo @ 125mL/ha to control blue-green aphids and a later application (July 19th) of Chlorpyrifos @ 1.2L/ha to control Russian Wheat Aphids.
Fungicide

MAP 1% Zn fertiliser was treated with Impact at 4 L/t for fungal suppression
Pesticide

Zinc phosphide mouse bait was spread twice during the season.
Tillage Minimum Till
Download the trial report to view additional method/treatment information

Download results

Trial results Grain yield

# Treatment 1
Grain yield (t/ha)
1 █ 15N 1.66c
2 █ 150 NTE 3.91a
3 █ 150 NTL 3.35ab
4 █ 104 NMRB 2.89b
5 █ 150 NMRB 3.068b
6 █ Dry irrigation treatment 2.86a
7 █ Wet irrigation treatment 3.10a

Grain yield t/ha

Loading

Trial results Grain nitrogen

# Treatment 1
Grain nitrogen (kg/ha)
1 █ 15N 25.98c
2 █ 150 NTE 78.28a
3 █ 150 NTL 62.02b
4 █ 104 NMRB 49.39b
5 █ 150 NMRB 50.93b
6 █ Dry irrigation treatment 54.41
7 █ Wet irrigation treatment 52.23

Grain nitrogen kg/ha

Loading

Trial results Apparent nitrogen recovery efficiency (ANRE)

# Treatment 1
Treatment 2
Apparent nitrogen recovery efficiency (ANRE) (%)
1 █ Dry █ 150 NTE 41.3a
2 █ Wet █ 150 NTE 36.1a
3 █ Dry █ 150 NTL 30.3b
4 █ Wet █ 150 NTL 20.7b
5 █ Dry █ 104 NMRB 31.1b
6 █ Wet █ 104 NMRB 21.5b
7 █ Dry █ 150 NMRB 19.0c
8 █ Wet █ 150 NMRB 18.1b
9 █ Dry █ Dry irrigation treatment 30.4a
10 █ Wet █ Wet irrigation treatment 24.1b

Apparent nitrogen recovery efficiency (ANRE) %

Loading

Trial results Head abundance

# Treatment 1
Head abundance (heads/m2)
1 █ 15N 407.5c
2 █ 150 NTE 619.8a
3 █ 150 NTL 537.6b
4 █ 104 NMRB 592.4ab
5 █ 150 NMRB 530.8b
6 █ Dry irrigation treatment 556.2a
7 █ Wet irrigation treatment 522.4b

Head abundance heads/m2

Loading

Trial results No of grains per head

# Treatment 1
No of grains per head (g)
1 █ 15N 10.03b
2 █ 150 NTE 17.58a
3 █ 150 NTL 17.00a
4 █ 104 NMRB 12.70b
5 █ 150 NMRB 14.49ab
6 █ Dry irrigation treatment 12.28b
7 █ Wet irrigation treatment 16.37a

No of grains per head g

Loading

Trial results 1000 grain weight

# Treatment 1
1000 grain weight (g)
1 █ 15N 43.40a
2 █ 150 NTE 39.41c
3 █ 150 NTL 40.40bc
4 █ 104 NMRB 42.62ab
5 █ 150 NMRB 42.78a
6 █ Dry irrigated treatment 43.26a
7 █ Wet irrigated treatment 39.65b

1000 grain weight g

Loading

Trial results Chlorophyll content index 2 (CCCI)

# Treatment 1
Treatment 2
Chlorophyll content index 2 (CCC1) (.)
1 █ Dry █ 15N 0.559a
2 █ Wet █ 15N 0.513a
3 █ Dry █ 150 NTE 0.596a
4 █ Wet █ 150 NTE 0.519a
5 █ Dry █ 150 NTL 0.566a
6 █ Wet █ 150 NTL 0.519a
7 █ Dry █ 104 NMRB 0.590a
8 █ Wet █ 104 NMRB 0.526a
9 █ Dry █ 150 NMRB 0.598a
10 █ Wet █ 150 NMRB 0.520a

Chlorophyll content index 2 (CCC1) .

Loading

Trial results Chlorophyll content index 3 (CCCI)

# Treatment 1
Treatment 2
Chlorophyll content index 3 (CCCI) (.)
1 █ Wet █ 15N 0.546c
2 █ Wet █ 150 NTE 0.641a
3 █ Wet █ 150 NTL 0.606b
4 █ Wet █ 104 NMRB 0.595b
5 █ Wet █ 150 NMRB 0.580b

Chlorophyll content index 3 (CCCI) .

Loading

Trial results Change in chlorophyll content index (CCCI)

# Treatment 1
Treatment 2
Change in chlorophyll content index (CCCI) (.)
1 █ Wet █ 15N 0.033d
2 █ Wet █ 150 NTE 0.122a
3 █ Wet █ 150 NTL 0.085b
4 █ Wet █ 104 NMRB 0.069c
5 █ Wet █ 150 NMRB 0.060c

Change in chlorophyll content index (CCCI) .

Loading

Trial results Normalised difference red edge 2 (NDRE)

# Treatment 1
Treatment 2
Normalised difference red edge 2 (NDRE) (.)
1 █ Dry █ 15N 0.266c
2 █ Wet █ 15N 0.254a
3 █ Dry █ 150 NTE 0.510a
4 █ Wet █ 150 NTE 0.225a
5 █ Dry █ 150 NTL 0.464b
6 █ Wet █ 150 NTL 0.199a
7 █ Dry █ 104 NMRB 0.448b
8 █ Wet █ 104 NMRB 0.155b
9 █ Dry █ 150 NMRB 0.429b
10 █ Wet █ 150 NMRB 0.154b

Normalised difference red edge 2 (NDRE) .

Loading

Trial results Normalised difference red edge 3 (NDRE)

# Treatment 1
Treatment 2
Normalised difference red edge 3 (NDRE) (.)
1 █ Wet █ 15N 0.363c
2 █ Wet █ 150 NTE 0.510a
3 █ Wet █ 150 NTL 0.464b
4 █ Wet █ 104 NMRB 0.448b
5 █ Wet █ 150 NMRB 0.429b

Normalised difference red edge 3 (NDRE) .

Loading

Trial results Change in normalised difference red edge (NDRE)

# Treatment 1
Treatment 2
Change in normalised difference red edge (NDRE) (.)
1 █ Wet █ 15N 0.109c
2 █ Wet █ 150 NTE 0.225a
3 █ Wet █ 150 NTL 0.199a
4 █ Wet █ 104 NMRB 0.155b
5 █ Wet █ 150 NMRB 0.154b

Change in normalised difference red edge (NDRE) .

Loading
Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Mallan, NSW 0 - 10cm Grey Clay 4.70 0.34 51.00 370.00 34.00 8.00 1.50
Mallan, NSW 0 - 60cm Grey Clay 3.00 2.00
Soil conditions
Trial site Soil texture
Mallan, NSW Grey clay
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Mallan, NSW Calcarosol
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 Mallan NSW
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000

Climate

Mallan NSW 2017

Observed climate information

Rainfall avg ann (mm) 310mm
Rainfall avg gsr (mm) 150mm
Rainfall trial total (mm) 376mm
Rainfall trial gsr (mm) 121mm

Derived climate information

Mallan NSW

Loading
Loading
Loading

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

2017 trial report

2017 trial report



Trial last modified: 23-07-2019 13:20pm AEST