Bourke

Grower: John Ellis


Variety Yield
(bales/ha)
Yield
(bales/ac)
% of Sicot 754B3F Staple
(decimal)
Staple
(imperial)
Manual Class Micronaire Strength
(gms/tex)
Turnout
(%)
Uniformity
(%)
Sicot 714B3F 7.20 2.91 104.1 1.2 38 12-2 3.9 32.0 37.2 83.0
Sicot 754B3F 6.91 2.80 100.0 1.25 40 12-2 3.8 33.6 38.6 83.7
Sicot 746B3F 6.67 2.70 96.5 1.2 38 12-2 3.9 31.9 39.8 82.8
Sicot 748B3F 6.59 2.67 95.4 1.21 39 12-2 3.9 32.6 37.6 81.8
Year2018 Trial TypeN/A Trial DesignRCBx4 Balance of Field754B3F
Planted05/10/17 Picked17/03/18 Previous CropLong Fallow Established MethodN/A
Plant Stand/m9.7 Rainfall (defoliation mm)50 Incrop irrigations4 Soil applied insecticideNo
Nitrogen (kg/ha N)200 Phosphorus (kg/ha P)80 Potassium (kg/ha K)N/A Zinc (kg/ha Z)N/A
Heliothis spraysN/A Insect spraysN/A Pix applied (L/ha)2.0 Days to defoliation145

Considering the lack of water the yields were respectable with a top of 7.20 b/h in the variety Sicot 714B3F. It was able to finish earlier and set and keep fruit as the heat continued. Fibre quality and grades were good considering the season. Sicot 754 B3F finished with a 40 length at this site.
Defoliation was done on the 26th February and picking was bought forward due to a storm that went over the trial field and caused regrowth to start. Picking was on the 17th March 2018.
Bourke recorded 3,103 Day degrees for the season compared to an average of 2,642. This is 117% of the average. There were 25 days over 40 C compared to an average of 14. Last season, 2016-17, saw 34 days over 40 C.
Night temperatures above 25 C were down compared to last year which helped the crops recover a little from the high day temperatures.

The trial was planted on 6th October 2017 and it got off to a good start. The hot and dry conditions took its toll on the trial field and due to limited water the crop finished with only four irrigations. Picking was brought forward due to excessive regrowth caused by a storm soon after defoliation.
It was a disappointing end to a season that had a lot of promise.