FarmLink Spitfire Wheat Update August 2014

FarmLink Spitfire Wheat Update


“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





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)





Gross Margin Analysis

Gross Margin ($/ha) Breakeven Yield (t/ha) Breakeven Price ($)




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)

FarmLink Paddock 5a

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

Operations & Climate


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

APSIM Yield Forecast

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