Abstract
Herbicide resistance in annual ryegrass ( Lolium rigidum Gaud.) is a major issue confronting many growers in the Australian wheat-belt, and has resulted in a re-examination of the way in which weeds are managed in crops. One approach being explored, particularly by growers that have adopted GPS guidance farming, is the cultivation of pulse crops on wide-rows to allow directed spraying of troublesome weeds between the crop rows. Crops such as lupins, chickpeas and faba beans, which have been shown to maintain yield in wide-rows (Felton et al. 1996, French and Harries 2006), provide an opportunity to safely apply non-selective herbicides with shields between rows (inter-row), and to utilise more expensive options within the row (intra-row). This could have significant cost benefits to growers via a reduction in the amount of selective herbicides applied. In 2006, a field experiment was undertaken at Roseworthy, South Australia, to evaluate interand intra-row herbicide application strategies for the control of annual ryegrass (ARG) in faba beans grown in wide-rows (54 cm). In the absence of weed control, faba beans grown in wide-rows were unable to compete with ARG (189 plants m) and produced very little grain yield (154 kg ha). The standard farmer practice of applying post-sowing pre-emergent simazine (1.35 kg ha) followed by post-emergent clethodim (60 g ha) to beans sown in conventional row spacing (18 cm) provided effective control of ARG (84%) and a 4-fold increase in grain yield (681 kg ha) relative to the weedy control. However, the same herbicide combination used in wide-rows yielded significantly more grain (1046 kg ha) which could have been partly due to much lower ARG density (48 plants m) than that in the conventional row spacing (139 plants m). Large differences in ARG recruitment due to soil disturbance have also been shown in previous research (Chauhan et al. 2006). In this study, activity of propyzamide, a group K herbicide, against Interand intra-row herbicide application strategies for the control of annual ryegrass (Lolium rigidum) in wide-row faba beans ( Vicia faba)
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Claims 6
Claim · model-written summary
Without weed control, faba beans grown in wide rows could not compete with annual ryegrass (189 plants per m2) and produced very little grain yield (154 kg per ha).
- Taxon
- faba beans
Vicia fabae0 - Interactor
- ARGe0weed
- Outcome
- grain yielde0
- Value
- 154 kg hae0
- Qualifier
- wide-rowse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the absence of weed control, faba beans grown in wide-rows were unable to compete with ARG (189 plants m) and produced very little grain yield (154 kg ha)”
Claim · model-written summary
Simazine followed by clethodim in beans at conventional row spacing (18 cm) gave effective control of annual ryegrass (84%).
- Taxon
- beanse0
- Treatment
- post-sowing pre-emergent simazine (1.35 kg ha) followed by post-emergent clethodim (60 g ha)e0
- Interactor
- ARGe0weed
- Outcome
- control of ARGe0
- Direction
- effective controle0
- Value
- 84%e0
- Qualifier
- conventional row spacing (18 cm)e0
Not reportedComparator
Verbatim
e0“The standard farmer practice of applying post-sowing pre-emergent simazine (1.35 kg ha) followed by post-emergent clethodim (60 g ha) to beans sown in conventional row spacing (18 cm) provided effective control of ARG (84%) and a 4-fold increase in grain yield (681 kg ha) relative to the weedy control”
Claim · model-written summary
The same simazine plus clethodim practice at conventional row spacing gave a 4-fold grain yield increase (681 kg per ha) relative to the weedy control.
Verbatim
e0“The standard farmer practice of applying post-sowing pre-emergent simazine (1.35 kg ha) followed by post-emergent clethodim (60 g ha) to beans sown in conventional row spacing (18 cm) provided effective control of ARG (84%) and a 4-fold increase in grain yield (681 kg ha) relative to the weedy control”
Claim · model-written summary
The same herbicide combination used in wide rows yielded significantly more grain (1046 kg per ha) than in conventional row spacing.
- Taxon
- faba beansVicia fabat0
- Treatment
- same herbicide combination used in wide-rowse0
- Outcome
- graine0
- Direction
- moree0
- Value
- 1046 kg hae0
- Comparator
- conventional row spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the same herbicide combination used in wide-rows yielded significantly more grain (1046 kg ha) which could have been partly due to much lower ARG density (48 plants m) than that in the conventional row spacing (139 plants m)”
t0“faba beans”
Claim · model-written summary
Annual ryegrass density was much lower with the same herbicide combination in wide rows (48 plants per m2) than in conventional row spacing (139 plants per m2).
- Taxon
- faba beansVicia fabat0
- Treatment
- same herbicide combination used in wide-rowse0
- Interactor
- ARGe0weed
- Outcome
- ARG densitye0
- Direction
- lowere0
- Value
- 48 plants me0
- Qualifier
- 139 plants me0
- Comparator
- conventional row spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the same herbicide combination used in wide-rows yielded significantly more grain (1046 kg ha) which could have been partly due to much lower ARG density (48 plants m) than that in the conventional row spacing (139 plants m)”
t0“faba beans”
Claim · model-written summary
The higher grain yield in wide rows could have been partly due to the much lower annual ryegrass density.
- Taxon
- faba beansVicia fabat0
- Treatment
- same herbicide combination used in wide-rowse0
- Interactor
- ARGe0weed
- Outcome
- graine0
- Qualifier
- much lower ARG densitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the same herbicide combination used in wide-rows yielded significantly more grain (1046 kg ha) which could have been partly due to much lower ARG density (48 plants m) than that in the conventional row spacing (139 plants m)”
t0“faba beans”
The same questions in other papers
clethodim · control · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
simazine · yield · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
clethodim · yield · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
herbicide · yield · Vicia faba (faba bean)Positive and negative results
31 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
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See all 38 papers →herbicide · yield · Phaseolus vulgaris (common bean)Positive and negative results
41 papers in the same direction as this paper · 20 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
59 papers more in this group
See all 63 papers →herbicide · control · Phaseolus vulgaris (common bean)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.