| Researcher(s) |
Bonnie Armour Hugh Drum Nigel Fleming Andrew Harding Brian Hughes Ruby Hume Sean Mason Nigel Wilhelm |
|---|---|
| Year(s) | 2021 |
| Contributor | Hart Field Site Group |
| Trial location(s) |
Spalding, SA
|
| Further information | View external link |
To compare and evaluate lime sources, to assess broadcasting versus incorporation and investigate the effectiveness of compost and lime.
• Lime significantly improved soil pH 19 months after application.
• Lime is more effective if it is incorporated rather than broadcast on the surface.
• It is important to sample soils at 0 – 5 and 5 – 10 cm as sampling 0 – 10 can mask results at 5 – 10 cm.
• Maintain soil pH above pH 5.5. If the pH falls below that level, aluminium levels start to increase and can become toxic, some nutrients like molybdenum also become less available and Rhizobia populations (important for nodulation of legumes) sharply
decline.
• As the soil pH starts to fall below pH 5.5 (CaCl2) biomass production can decline. When soil pH falls to pH 4.3 (CaCl2) this can result in a 50% biomass loss of vetch.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC |
| Related program | N/A |
| Acknowledgments |
Dane and Natalie Sommerville are kindly acknowledged for allowing the trial on their property. |
| Other trial partners | Not specified |
| Crop type | Hay: Vetch |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 50 kg/ha |
|---|---|
| Sowing machinery |
Small plot seeder |
| Sow date | 22 May 2021 |
| Harvest date | Unknown |
| Plot size | Not specified |
| Plot replication | 4 |
| Fertiliser |
60 kg/ha DAP |
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.
