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| Researcher(s) |
Helen Burns (NSW DPI) Mark Norton (NSW DPI) Peter Tyndall (NSW DPI) |
|---|---|
| Year(s) | 2016 |
| Contributor | Department of Primary Industries NSW |
| Trial location(s) |
Grafton, NSW
|
| Further information | View external link |
To examine boosting pulse crop performance on acidic soils.
• Acidic soil layers below 5 cm adversely affect root growth and architecture, nodulation, plant vigour, N2
fixation and yield potential of acid-sensitive pulses.
• Moderately (pHCa 4.6–5.0) and severely (pHCa <4.5) acidic layers in the 5–20 cm soil profile are not detected using soil samples collected over standard profile depths of 0–10 cm and 10–20 cm.
• Finer sampling at 5 cm intervals is recommended to detect pH stratification.
• The current standard industry practice of spreading lime with no incorporation and sowing with knife point press wheels or disc seeders confines the lime effect to the surface layers.
• Careful paddock selection and forward planning is required to correct pH stratification in the topsoil (0–10 cm).
• Lime application and incorporation with a full cultivation operation at least 6–12 months before sowing acid-sensitive species could be necessary.
• Appropriate lime rates should be used to ensure pHCa >5.5 in the entire top 10 cm layer.
• The effect of pH stratification on more acid-tolerant species, including canola, lucerne and cereals, should also be monitored.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC DAN00191 |
| Trial funding source | DPI NSW |
| Related program | N/A |
| Acknowledgments |
These surveys were part of the project ‘N fixing break-crops and pastures for high rainfall zone acid soils’, DAN00191, 2014–18, with joint investment by GRDC and NSW DPI and in collaboration with CSIRO Food and Agriculture, Holbrook Landcare Network and Mackillop Farm Management Group. |
| Other trial partners | Not specified |
| Crop types | Grain Legume: Faba beans Grain Legume: Chickpeas Grain Legume: Lentils |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Unknown |
| Sow date | Not applicable |
|---|---|
| Harvest date | Not applicable |
| Plot size | Not specified |
| Plot replication | Not specified |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2017, available at |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2017, available at |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2017, available at |
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.
