In the mid 1990’s, DAFWA established a series of lime demonstrations sites across the WA wheatbelt, to highlight the importance of managing soil acidity. This trial is one of the series, which had a very simple design (0, 1 and 2t/ha applied, in 3 replicates). The rationale was to use farmer equipment, to enable larger areas to be treated differently, and ultimately provide extension opportunities across the WA wheatbelt.
Lead research organisation |
Liebe Group |
---|---|
Host research organisation |
Aglime of Australia |
Trial funding source | GRDC LIE00008 |
Related program | N/A |
Acknowledgments |
The 'Time to Lime' project was a major coordinated research and extension initiative during which time, many of the trials reported upon were initiated, and many organisations contributed:
I acknowledge GRDC project LIE00008, “Working together to deliver multiple benefit messages to growers through a whole systems approach to soil management" |
Other trial partners | Not specified |
Crop type | None: No crop specified |
---|---|
Treatment type(s) |
|
Trial type | Experimental |
Trial design | Replicated |
Sow date | Not specified |
---|---|
Harvest date | Not specified |
Plot size | 30m x 160m |
Plot replication | 3 |
Soil amelioration |
Lime Source used: Limesand, Neutralising Value 67%, Particle size 93%
|
Other trial notes |
We have been unable to determine if there was any lime application during the period of 1997 to 2008. The current land owner does not believe any lime was applied by the previous land owner during that period Tim Critch purchased the property from Alan Desmond in 2008. Since that period, Tim has applied 2 applications (both of 2t/ha). Timing of the additional 4t/ha of application and source of quality of lime used unknown. We are assuming both events occurred between 2009 and 2013. We are unsure if Tim applied additional lime across the trial site on either one, or both of the subsequent applications. Further investigation to determine this is in progress. |
# |
Treatment 1
|
Change in soil pH (pH) | Mid Season pH (pH) | 1 t/ha Lime Rate (pH) | Pre Liming pH (pH) | 0 t/ha Lime rate (pH) | 2 t/ha Lime Rate (pH) |
---|---|---|---|---|---|---|---|
1 | █ 2t /ha lime 0-10cm | 0.1 | 5 | 4.9 | |||
2 | █ 2t /ha lime 10-20cm | 0 | 4.5 | 4.5 | |||
3 | █ 2t /ha lime 20-30cm | 0 | 5 | 0 | |||
4 | █ 1t /ha lime 0-10cm | 0.2 | 4.9 | 4.7 | |||
5 | █ 1t /ha lime 10-20cm | -0.1 | 4.3 | 4.5 | |||
6 | █ 1t /ha lime 20-30cm | 0 | 5 | 0 | |||
7 | █ 0t /ha lime 0-10cm | 0 | 4.7 | 4.7 | |||
8 | █ 0t /ha lime 10-20cm | 0.1 | 4.5 | 4.3 | |||
9 | █ 0t /ha lime 20-30cm | 0 | 5.2 | 0 | |||
10 | █ 1997 Average 0-10 cm | 6.2 | 5.6 | 6.5 | |||
11 | █ 1997 Average 10-20cm | 5.2 | 4.6 | 5.8 | |||
12 | █ 1997 Average 20-30cm | 4.5 | 4.4 | 4.7 | |||
13 | █ 1998 Average 0-10 cm | 5.7 | 5.1 | 6.1 | |||
14 | █ 1998 Average 10-20cm | 4.5 | 4.4 | 4.6 | |||
15 | █ 1998 Average 20-30cm | 4.7 | 5 | 4.9 | |||
16 | █ 1999 Average 0-10 cm | 5.7 | 5.1 | 6.1 | |||
17 | █ 1999 Average 10-20cm | 4.5 | 4.4 | 4.6 | |||
18 | █ 1999 Average 20-30cm | 4.7 | 5 | 4.9 | |||
19 | █ 2000 Average 0-10 cm | 5.9 | 4.9 | 6.3 | |||
20 | █ 2000 Average 10-20cm | 4.8 | 4.4 | 5 | |||
21 | █ 2000 Average 20-30cm | 4.8 | 4.6 | 5 | |||
22 | █ 2016 Average 0-10 cm | 5.4 | 4.9 | 5 | |||
23 | █ 2016 Average 10-20cm | 5 | 4.3 | 4.4 | |||
24 | █ 2016 Average 20-30cm | 4.9 | 4.3 | 4.2 |
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.