1. If you rely on the information in this booklet you are responsible for ensuring by independent verification of its accuracy or completeness.
2. The information and data in this booklet is subject to change without notice.
3. Primary Industries & Regions SA, Agriculture Kangaroo Island, Natural Resources Kangaroo Island and the
State of South Australia, its agents, instrumentalities, officers and employees:
Researcher(s) |
Jenny Stanton (Ag KI Cropping Trial Manager) |
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Year(s) | 2016 - 2017 |
Contributor | Agriculture Kangaroo Island Incorporated |
Trial location(s) |
Seddon, SA
|
This was the second year of a three-year trial, funded by the South Australian Grains Industry Trust (SAGIT), to evaluate the nitrogen fixation capabilities of various legume species commonly grown on Kangaroo Island.
In this second year, the trial was set up to answer the following questions:
Take Home Messages
• Near perfect growing season for canola, provided ideal opportunity to assess the residual N feeding effect of the legumes.
• All legumes sown in 2016 – peas, lupins, sub clover and faba beans had similar starting soil N levels and soil water nitrate readings throughout the year which was reflected in similar grain yields inferring that all legume species were equal in terms of their N fixing capabilities.
• The average amount of N fixed by the legumes was calculated as ~86kg/ha.
• Growing adequately nodulated legumes can give rise to a ~1t/ha canola yield advantage compared with a non-legume.
• Linseed used more moisture, from a greater depth, than the faba beans in 2016. Resultantly more moisture was extracted by the canola crop sown on the faba bean stubble in 2017, and yet there is still more residual moisture left.
Lead research organisation | N/A |
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Host research organisation | N/A |
Trial funding source | SAGIT |
Trial funding source | Agriculture Kangaroo Island |
Trial funding source | Agbyte |
Related program | N/A |
Acknowledgments |
Funding/Sponsors/Acknowledgments • South Australia Grains Industry Trust (SAGIT) funding administered by AgKI • Stantons for providing trial site, seed and spraying • Andrew Ware (PIRSA-SARDI) for statistical analysis. |
Other trial partners | Not specified |
Crop types | Pasture: Clover Forage: Pea Oilseed: Canola Oilseed: Linseed Grain Legume: Faba beans Grain Legume: Lupins |
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Sow date | 28 April 2017 |
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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.