FarmLink Spitfire Wheat Update
Summary
“The Spitfire Wheat in paddock 5a was observed on the 15th August and is at GS 33-34. The crop appears healthy despite some recent frequent frost events. The paddock has had an application of nitrogen and at present is under no disease or pest pressure. In season rainfall has been adequate and a further 23mm of rain on the 17/8/14 is setting the crop up for an average yield or better scenario” Tony Pratt – 18th August 2014.
| Yield Forecast (t/ha) |
Biomass (kg/ha) |
GSR (mm) |
Growth Stage |
5.4
|
2633
|
123
|
Z34
|
Topdressing Scenario Planning
Urea was applied to the paddock on 14th July at the rate of 100 kg/ha. Below are the likely results from different Urea rates if they were applied on the same day.
| Urea 150 (t/ha) |
Urea 100 (t/ha) |
Urea 50 (t/ha) |
Urea 0 (t/ha) |
5.58
|
5.40
|
4.94
|
4.49
|
Gross Margin Analysis
| Gross Margin ($/ha) |
Breakeven Yield (t/ha) |
Breakeven Price ($) |
954.23
|
1.72
|
92.27
|
Temora Paddock
| Crop Setting |
Paddock Setting |
| Crop Type |
Wheat |
Area |
23.8 ha |
| Cultivar |
Spitfire |
Elevation |
271 m |
| Sowing Date |
13th May 2014 |
Slope |
0.1 |
| Sowing Rate |
60 kg/ha |
Aspect |
E |
| Row Spacing |
300 mm |
Soil PAWC |
147 mm |
| Implement |
Knife points + press wheels |
Soil Characterisation |
Red Chromosol (No. 913) |
Paddock Diary
| Paddock Operations |
Climate |
| Soil Test |
16/01/14 |
NO3 = 37, NH4 = 12 mg/kg |
Year-to-Date rainfall |
319 mm |
| Spraying |
14/03/14 |
Roundup, Amicide, LI 700 |
Soil Moisture @ Sowing |
40 mm |
| Spraying |
09/05/14 |
Roundup, Goal, LI 700 |
Growing Season Rainfall |
122 mm |
| Sowing |
13/05/14 |
MAP 50 kg/ha |
Last Frost |
12th August (-3°C) |
| Spraying |
13/05/14 |
Gramoxone, Sakura |
Soil Moisture early August |
53 mm |
| Spraying |
30/05/14 |
Fastac Duo, Dimethoate |
July SOI |
-3 |
| Spraying |
04/07/14 |
Igran, MCPA, Ally |
Similar SOI Seasons
|
1983, 1990, 1991, 2000, 2001, 2002, 2005, 2006, 2008, 2009 |
| Topdressing |
14/07/14 |
Urea 100 kg/ha |
APSIM
| Yield Forecast |
Crop Status (12 Aug) |
| 80th Percentile |
5.82 t/ha |
Growth Stage |
Z35 |
| Median |
5.40 t/ha |
NDVI |
0.94 |
| 20th Percentile |
3.84 t/ha |
Biomass |
2633 kg/ha |
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