This dataset comprises detailed agronomic data from three coordinated field experiments conducted at Beelbangera, NSW. The trials investigate the effects of genotype, sowing depth, fertiliser placement and rate, and seed size on wheat establishment and yield performance.
The Excel workbook contains 14 sheets, which include trial details, site maps, treatment layouts, packet plans, raw plot-level data, processed metrics, and harvest index calculations. The data is structured with consistent identifiers such as run number, genotype, sowing depth, fertiliser treatment, and seed size category. Raw data entries include grain yield per plot, sowing depth, genotype, fertiliser rate, and plot dimensions, enabling calculation of yield per hectare. Additional sheets provide derived metrics such as grain count, canopy cover, SAVI (Soil Adjusted Vegetation Index), and harvest index.
Data was collected using standard field trial methodologies. Sowing was performed on 29 April 2024 using a Morris seeder at two depths: shallow (4 cm) and deep (12–14 cm). Fertiliser was applied either with the seed or above the seed, at safe (80 kg/ha MAP) and unsafe (160 kg/ha MAP) rates. Trials were replicated three times with consistent plot sizes (12 m × 1.75 m) and row spacing (25 cm × 7 rows). Environmental conditions were monitored, including rainfall (362.5 mm total, 246 mm in the growing season), and soil tests were conducted pre-sowing (pH 6.2, total N 57 kg/ha, Colwell P 38 ppm). Herbicide and fertiliser applications were logged with dates and rates.
The dataset includes over 100 variables. Key fields include genotype (e.g., Calibre, Mace18, Magenta13), sowing depth, fertiliser rate and placement, seed size (e.g., small, medium, large), grain yield, biomass, spike count, and vegetation indices. Codes such as “SS” and “DS” denote sowing depth, while “Std”, “Lge”, “Sml”, “Med”, and “Vlge” refer to seed size categories. Fertiliser treatments are coded as “Cont”, “Withseed”, and “Aboveseed”. The dataset also includes image references for visual assessments and positional metadata for canopy measurements.
