The University of Adelaide
2020 Birchip Canola.xlsx (684.62 kB)

Optimising Plant Establishment 2020 Rupanyup Canola Experiment

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posted on 2023-12-11, 07:24 authored by Glenn McDonaldGlenn McDonald, Jacky Desbiolles, Sarah Noack, Stefan Schmitt, Claire Pickles, Genevieve Clarke, Rebekah Allen, Ashley Amourgis, Jon Midwood, David Minkey

Data from the 2020 crop establishment trial at Rupanyup, VIC. The trial compared the establishment of Canola at different densities, under a conventional cone seeder and under a precision seeder. The experiment was run under the UOA1803-009RTX GRDC research project led by the University of Adelaide, with the experimental trial and data collection managed locally in Rupanyup by the Birchip Cropping Group (BCG).

Files:2020 Birchip Canola.xlsx

Experiment setup:The experiment was mnanaged locally by the Birchip Cropping Group (BCG). The trial was organised as a split plot with 4 treatments of target plant densities (10, 15, 25 and 50 plants/m2), with two different seeders used (conventional cone seeder vs precision seeder), with 6 replicates. This design was embedded in a spatial grid with 12 rows (not including the two buffer rows on the north and south sides) and 4 ranges, for 48 plots total. Note that windy conditions during the sowing caused an uneven distribution for the seeds along the plots, with a "fat" distribution at one end and a "thin" distribution at the other end. These distributions have been scored and are available as a covariate listed in the dataset.

Variables recorded:establishment count (plants/m2), seedling depth (cm), NDVI, biomass weight (g), yield (t/ha), oil (%), moisture (%), protein (%), test weight (kg/hL), seed count (seeds/kg)

Data collection and assessment:Plant establishment was measured using three counts across different pins and rows (Count 1: SW pins, 2nd row from the right; Count 2: Middle pins, 3rd row from the right; Count 3: NE pins, 4th row from the right), with these counts being made on 6 separate occasions between 22/05/2020 and 11/06/2020. Seedling depths in cm were recorded for 10 plants, but at only two treatments. Interplant distances were also measured upon establishment. NDVI measurements were made on 29/07/2020 and again on 23/09/2020. Biomass cuts were taken and weighed at plant Growth Stages 65 and 99. At harvest, the yield in t/ha was recorded for each plot, together with the moisture content, protein content, oil content (corrected to moisture), the test weight, and the seeds/kg.




GRDC contract code


GRDC project title

Optimising plant establishment, density and spacings to maximise crop yield and profit in the southern and western regions

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Start date for this data collection


End date for this data collection


Spatial coverage

Rupanyup experiment site, VIC.

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  • Open

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