|% of Siokra V-16B||Staple
|Year||2006||Trial Type||N/A||Trial Design||RCB x 3 Reps||Balance of Field||Sicot 80B|
|Planted||09/11/05||Picked||09/05/06||Previous Crop||Wheat||Established Method||Fallow Moisture|
|Plant Stand/m||9.0||Rainfall (defoliation mm)||291||Incrop irrigations||N/A||Soil applied insecticide||No|
|Nitrogen (kg/ha N)||0||Phosphorus (kg/ha P)||0||Potassium (kg/ha K)||0.4||Zinc (kg/ha Z)||0.8|
|Heliothis sprays||0||Insect sprays||3||Pix applied (L/ha)||0.0||Days to defoliation||145|
Crop was planted into excellent soil moisture resulting from good rainfall throughout October. A shower (19mm) immediately after planting resulted in some soil crusting and herbicide damage in places; however a good stand was achieved across the field. Due to warm temperatures and a number of rainfall events that provided good soil profile moisture, the crop showed excellent vigour throughout December as it reached squaring. Some light hail damage in December caused no damage of consequence.
Temperatures began to soar in late December and while there were storms around, none provided any useful rainfall during this critical period. By early January soil moisture levels were obviously depleting and crop vigour slowed markedly, while by mid January crop development had all but stopped and fruit shed was occurring. The fortunes of this crop were saved however with 75mm of rain on January 18 which allowed the crop to mature a good volume of fruit.
Weed management included Roundup (1.4 l/ha) applied pre-plant, Dual Gold (1.0 l/ha) and Cotogard (2.5 kg/ha) applied at a 50% band with the planter and Diuron (1.1 kg/ha) and Sprayseed (1.6 l/ha) applied between planting and emergence. In crop, 1.5 l/ha Roundup CT was applied with shielded sprayer in mid December and an inter-row cultivation was done during late December to combat fleabane, the only obvious in-crop weed in the field.
The only fertilizer applied was Liquifert Gem (3 l/ha) at planting.
In addition to the other trial varieties, Sicot 289B was planted in wheel tracks (24m spacing) so that the remainder of the varieties could be replicated at planting. Due to the large negative impact the wheel track had on growth in these plots, the yield of Sicot 289B have been omitted from the reported data. It yielded approximately 0.75 bales/ acre, with staple length of 37 (32nds inch), micronaire of 5.1 and strength of 31.5 grams/tex.
The field was defoliated on 3 April 06 (Dropp @120 ml/ha) with a second application 15 days later (Dropp @120 ml/ha). Due to a lot of unopened bolls, a third application was made to the Sicala 350B and some other areas of the field (not in trial).