| Researcher(s) |
Rebekah Allen Brianna Guidera Sarah Noack Courtney Peirce Kenton Porker |
|---|---|
| Year(s) | 2020 |
| Contributor | Hart Field Site Group |
| Trial location(s) |
Hart, SA
|
| Further information | View external link |
To update guidelines that optimise variety selection, seeding date and in-crop nutrition requirements for export oaten hay in South Australia.
• The 2020 season was challenging for oaten hay at Hart with spring rainfall arriving too late to benefit hay yields, falling when most grower’s hay was already cut.
• Higher hay yields were achieved from early May sowing, the same trend experienced in the 2019 season.
• Slower developing oat varieties adapted poorly to Hart conditions in both 2019 and 2020.
• Hay yields ranged from 2.3 – 3.5 t/ha with Brusher, Carrolup, Yallara, Wintaroo and Durack were the highest yielding varieties.
• Plant height at cutting date was strongly correlated with hay yield but had no effect on grain yield.
• Responses to N were different for hay yields compared to grain yield
• Nitrogen applied at 30 kg N/ha was sufficient to produce the highest hay yield; 90 kg N/ha was sufficient to produce the highest grain yield in a N responsive soil.
• All varieties except Vasse met the export hay recommendations for Neutral Detergent Fibre (NDF) and Water Soluble Carbohydrates (WSC).
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments | N/A |
| Other trial partners | Not specified |
| Crop type | Forage: Oats |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Unknown |
| Sow rate or Target density | 320 plants/m2 |
|---|---|
| Sow date | May 6, 2020 & May 25, 2020 |
| Harvest date | 14 November 2020 |
| Plot size | 1.75m x 10.0m |
| Plot replication | Not specified |
| Fertiliser |
Seeding: DAP (18:20) + Impact @ 60 kg/ha |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
