Researcher(s) |
Tim McClelland (BCG) Rob Norton (IPNI) |
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Year(s) | 2013 |
Contributor | Birchip Cropping Group |
Trial location(s) |
Watchupga East, VIC
|
To quantify nitrogen leaf uptake when applying UAN with and without follow-up rain; and to determine the effect of streaming versus standard nozzles on nitrogen leaf uptake.
Lead research organisation | N/A |
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Host research organisation | N/A |
Trial funding source | IPNI |
Trial funding source | BCG members |
Related program | N/A |
Acknowledgments | N/A |
Other trial partners | Not specified |
Crop type | Cereal (Grain): Wheat |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Replicated |
Sow date | 15 May 2013 |
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Harvest date | Not specified |
Plot size | 1.8m X 14m |
Plot replication | 4 |
Fertiliser |
15 May - MAP + Zn (55kg/ha) 16 August - Liquid Urea, UAN, Urea (18kg/ha) (Based on treatments) 29 August - Liquid Urea, UAN, Urea (18kg/ha) (Based on treatments) |
Herbicide |
15 May - TriflurX (2L/ha) + Weedmaster Duo (2L/ha) + Avadex Xtra (2L/ha) 9 July - Velocity (670ml/ha) + Lontrel Advanced (50ml/ha) + Hasten (1%) |
Insecticide |
Fastac Duo (200ml/ha) |
@T1: 4 DAA | @T2: 10 DAA | @T3: At anthesis | |||||||||
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# | Variety |
Treatment 1
|
Treatment 2
|
N fertiliser efficiency (%) | Protein (%) | Grain N yield (kgN/ha) | Grain yield (t/ha) | Accumulated grain N above the control (kg N/ha) | Plant N (kg N/ha) | Plant N (kg N/ha) | Plant N (kg N/ha) |
1 | █ Correll | █ UAN Streaming Nozzles | █ Follow-up Rain | 36 | 8.7 | 25.3 | 1.76 | 6.5 | 30.5 | 30.5 | |
1 | █ Correll | █ Urea Top-Dressed | █ Follow-up Rain | 47 | 8.5 | 27.2 | 1.69 | 8.4 | 26 | 29.9 | |
1 | █ Correll | █ UAN Inter-row only | █ Follow-up Rain | 47 | 9.6 | 27.3 | 1.75 | 8.5 | 25.4 | 26.6 | |
2 | █ Correll | █ UAN standard nozzles | █ Follow-up Rain | 27 | 8.6 | 23.7 | 1.6 | 4.9 | 25.4 | 24 | |
2 | █ Correll | █ Liquid Urea | █ Follow-up Rain | 18 | 8.9 | 22 | 1.59 | 3.3 | 31.4 | 17.3 | |
2 | █ Correll | █ UAN Streaming Nozzles | █ No Follow-up Rain | 36 | 9.1 | 25.3 | 1.5 | 6.5 | 23.2 | 30.5 | 30.5 |
3 | █ Correll | █ Urea Top-Dressed | █ No Follow-up Rain | 47 | 9.9 | 27.2 | 1.69 | 8.4 | 19.3 | 26 | 29.9 |
3 | █ Correll | █ UAN Inter-row only | █ No Follow-up Rain | 47 | 9.3 | 27.3 | 1.54 | 8.5 | 19.3 | 25.4 | 26.6 |
3 | █ Correll | █ UAN standard nozzles | █ No Follow-up Rain | 27 | 8.8 | 23.7 | 1.51 | 4.9 | 22.1 | 25.4 | 24 |
4 | █ Correll | █ Liquid Urea | █ No Follow-up Rain | 18 | 8.9 | 22 | 1.26 | 3.3 | 20.1 | 31.4 | 17.3 |
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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.