| Researcher(s) |
Wes Arnott (SFS) Scott Chirnside (SFS) Gary Clark (UoM) Robert Edis (DPI) Colin Hacking (SFS) Renick Peries (DPI) Robert White (DPI) Bruce Wightman (SFS) |
|---|---|
| Year(s) | 2003 |
| Contributor | Southern Farming Systems |
| Trial location(s) |
Cressy, VIC
Gnarwarre, VIC |
To identify whether there is an advantage in using deep ripping or shallow cultivation compared to direct drill to improve the ability of crops to utilize soil water at depth.
The use of cultivation, whether deep or shallow, in 2003, shows no advantage in increasing the grain yield. In fact there may be a penalty in the loss of soil water, particularly at the surface, if the cultivation is performed in a dry autumn, as was the case in 2003.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC |
| Related program | N/A |
| Acknowledgments | N/A |
| Other trial partners | Not specified |
| Crop types | Cereal (Grain): Barley Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| # | Variety |
Treatment 1
|
Grain yield (t/ha) | Dry matter (t/ha) |
|---|---|---|---|---|
| 1 | █ Gairdner | █ 2. Deep Rip | 6.5 | 16.2 |
| 2 | █ Gairdner | █ 3. Direct Drill | 6.47 | 18.45 |
| 3 | █ Gairdner | █ 1. Direct Drill | 6.43 | 16.96 |
| 4 | █ Gairdner | █ 4(a) Direct Drill | 6.35 | 19.24 |
| 5 | █ Gairdner | █ 4(b) Direct Drill | 6.16 | 18.02 |
| # | Variety |
Grain yield (t/ha) | |
|---|---|---|---|
| 1 | █ Grace | █ 1. Direct Drill | 3.05 |
| 2 | █ Grace | █ 4(a) Direct Drill | 2.37 |
| 3 | █ Grace | █ 3. Direct Drill | 2.2 |
| 4 | █ Grace | █ 2. Deep Rip | 2.16 |
| 5 | █ Grace | █ 4(b) Direct Drill | 2.06 |
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.
