| Researcher(s) |
Judith Storer |
|---|---|
| Contact email | eo@liebegroup.org.au |
| Contact phone | 0400941412 |
| Year(s) | 2020 |
| Contributor | Liebe Group |
| Trial location(s) |
Dalwallinu, WA
|
| Further information | View external link |
1. To identify the optimal agronomy for chickpeas, grown in medium to low rainfall zones of northern Western Australia.
2. To address the issue of adequate weed control that impacted the profitability of chickpea crops grown in medium rainfall zones in earlier trials in this project.
• The combined Simazine and Isoxaflutole (Treatment 1) resulted in the lowest early weed counts, with less than 30 w eeds per m 2 at four weeks post emergence.
• Simazine and Isoxaflutole (Treatment 1) had a profound impact on inhibiting Medic growth relative to other treatment styles.
• Application of Isoxaflutole & Terbuthylazine (Treatment 2) completely mitigated all weed species except the medic.
| Lead research organisation |
Liebe Group |
|---|---|
| Host research organisation |
Liebe Group |
| Trial funding source | GRDC LIE1802-003SAX |
| Related program | N/A |
| Acknowledgments |
This is a GRDC investment, LIE1802-003SAX, led and managed by the Liebe Group. Thanks to Ian Hyde for hosting and implementing the trial. Thanks to Elders Scholz Rural for their collaboration, providing advice for treatments and for supplying the chemical used in the trial. |
| Other trial partners | Farmanco, West Midlands Group, Corrigin Farm Improvement Group, Facey Group, DPIRD, |
| Crop type | Grain Legume: Chickpeas |
|---|---|
| Treatment type(s) |
|
| Trial type | Demonstration |
| Trial design | Replicated |
| Sow rate or Target density | 85 kg/ha Striker Chickpeas |
|---|---|
| Sow date | 15 May 2020 |
| Harvest date | Unknown |
| Plot size | 36.6m x 500m |
| Plot replication | 2 |
| Fertiliser |
15/05/2020: 7.05 k g/ha N, 7.2 k g/ha P, 4.6 k g/ha S, 0.05 k g/ha Cu, 0.1 k g/ha Zn |
| Herbicide |
Please refer to the trial report for treatment details 24/06/2020: 200 g /ha mecoprop-P, 200 g /ha MCPA, 25 g /ha dicamba, 34 g /ha clopyralid, 90 g/ha bromoxynil 20/07/2020: 45 g/ha haloxyfop, 129 g/ha clethodim |
| Insecticide |
24/06/2020: 79 g/ha chlorpyrifos |
| Fungicide |
29/08/2020: 200 g /ha azoxystrobin, 80 g /ha cyproconazole |
| @T1: Early (25-06-2020) | @T2: Late (20-08-2020) | ||
|---|---|---|---|
| # |
Treatment 1
|
Crop Establishment (plants/m2) | Crop Establishment (plants/m2) |
| 1 | █ Simazine & Isoxaflutole | 22.623 | 23.607 |
| 1 | █ Isoxaflutole & Terbuthylazine | 25.574 | 29.508 |
| 2 | █ Terbuthylazine & Flumioxazin | 21.639 | 28.033 |
| 2 | █ Terbuthylazine, Metribuzin & Imazethapyr | 24.262 | 15.082 |
| 3 | █ | ||
| 3 | █ | ||
| 4 | █ | ||
| 4 | █ | ||
| # |
Treatment 1
|
Ryegrass density (plants/m2) | Wheat (plants/m2) | Medic (plants/m2) | Other (plants/m2) | Total Weeds (plants/m2) |
|---|---|---|---|---|---|---|
| 1 | █ Simazine & Isoxaflutole | 16 | 0 | 28 | 1 | 44 |
| 2 | █ Isoxaflutole & Terbuthylazine | 0 | 0 | 81 | 0 | 81 |
| 3 | █ Terbuthylazine & Flumioxazin | 14 | 14 | 178 | 0 | 205 |
| 4 | █ Terbuthylazine, Metribuzin & Imazethapyr | 16 | 1 | 64 | 0 | 81 |
| @T1: (25-06-2020) | @T2: (20-08-2020) | ||
|---|---|---|---|
| # |
Treatment 1
|
NDVI (.) | NDVI (.) |
| 1 | █ Simazine & Isoxaflutole | 0.071 | 0.306 |
| 1 | █ Isoxaflutole & Terbuthylazine | 0.07 | 0.346 |
| 2 | █ Terbuthylazine & Flumioxazin | 0.072 | 0.456 |
| 2 | █ Terbuthylazine, Metribuzin & Imazethapyr | 0.069 | 0.2187 |
| 3 | █ | ||
| 3 | █ | ||
| 4 | █ | ||
| 4 | █ | ||
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.
