FarmLink Spitfire Wheat Update September 2014

FarmLink Spitfire Wheat Update


“The Spitfire Wheat in paddock 5a was observed again on the 8th of September and the flag leaf is well out and the canopy is filling space. The crop appears healthy with no current pest or disease pressure. The paddock has had no more applications of nitrogen. No further rain events occurred to the end of August from the 23mm of rain reported on the 17th August. We have received 3.5mm of rain for September to date and a 30cm row spacing is proving beneficial but the crop will show signs of moisture stress if no rain falls in 7-10 days. The crop is on target for an average yield.” Tony Pratt – 8th September 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 Spitfire Wheat Area 23.8 ha
Sowing Date 13th May 2014 Elevation 271 m
Sowing Rate 60 kg/ha Slope 0.1
Row Spacing 300 mm Aspect E
Implement Knife points + press wheels Soil PAWC 147 mm
Plant Density  126 (p/m2) 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 334 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 141 mm
Sowing 13/05/14 MAP 50 kg/ha Last Frost 4th September (-1°C)
Spraying 13/05/14 Gramoxone, Sakura Soil Moisture early August 22 mm
Spraying 30/05/14 Fastac Duo, Dimethoate August SOI -11.4
Spraying 04/07/14 Igran, MCPA, Ally

Similar SOI Seasons

1957, 1979, 1986, 1989, 1991, 1997, 2002, 2005
Topdressing 14/07/14 Urea 100 kg/ha

Operations & Climate September


Yield Forecast Crop Status (12 Aug)
80th Percentile 5.66 t/ha Growth Stage Z46
Median 5.07 t/ha NDVI 0.88
20th Percentile 4.08 t/ha Biomass 5449 kg/ha

APSIM & NDVI September

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