Weed management in wide-row cropping systems: a review of current practices and risks for Australian farming systems

Peltzer, Sally; Hashem, Abul; Osten, V.; Gupta, Mohit; Diggle, Art; Riethmuller, Glen; Douglas, Alex; Moore, J.M.; Koetz, Eric

doi:10.1071/cp08130

Cited by 32 publications

(19 citation statements)

References 88 publications

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“…The current study establishes that narrow row spacing reduces L. rigidum seed production in a range of different crop species. The reduction in weed seed at narrow row spacing likely resulted from the improved crop competition (Peltzer et al ., ; Scott et al ., ). However, narrow row spacing would also result in increased soil disturbance at seeding compared to wide row spacing, which would improve the performance of pre‐emergent herbicides (Chauhan et al ., , ).…”

Section: Discussionmentioning

confidence: 96%

Eleven years of integrated weed management: long‐term impacts of row spacing and harvest weed seed destruction on Lolium rigidum control

Borger¹,

Riethmuller²,

D’Antuono

2016

Weed Research

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Summary Long‐term research aimed to determine whether narrow row spacing and harvest weed seed destruction, in combination with herbicide use, would be sufficient to drive a Lolium rigidum population to extinction. A trial was run from 1987 to 2013, with treatments including crop row spacings of 9, 18, 27 or 36 cm and crop residue burning or retention. Herbicides were applied to reflect regional practices. The initial trial design was randomised, but treatments were maintained in each plot over the following years. Lolium rigidum seed production at harvest was assessed from 2003 to 2013. Average crop yield was higher in the unburnt plots (1638 kg ha−1) than the burnt plots (1530 kg ha−1) and greater at narrow row spacing, with an average yield of 1658, 1637, 1548 and 1492 kg ha−1 in the 9‐, 18‐, 27‐ and 36‐cm spacings. Lolium rigidum seed at harvest was reduced in the burnt plots (57 seeds m−2) compared with the unburnt plots (297 seeds m−2) and was reduced at narrow row spacing, with an average of 58, 78, 223 and 333 seeds m−2 in the 9‐, 18‐, 27‐ and 36‐cm row spacings. By 2013, L. rigidum seed production was reduced to an average of 0 seeds m−2 in the narrow row spacing, burnt plots.

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Section: Discussionmentioning

confidence: 96%

Eleven years of integrated weed management: long‐term impacts of row spacing and harvest weed seed destruction on Lolium rigidum control

Borger¹,

Riethmuller²,

D’Antuono

2016

Weed Research

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“…CT caused an average reduction of about 17 % in grain yield as compared with MT, while it showed increasing of about 4% than NT. Schillinger (2005) found that NT caused lower production of wheat in comparison with CT, in part because of less water in the seed zone compared with CT during early plant development, while Hemmat et al (2006); Peltzer et al (2009) andHaj Abbasi et al (2000) reported that the main reason of wheat yield reduction in NT is the reduction in plant density.…”

Section: Fig 1 Effect Fertilization On Wheat Grain Yield Under 3 Timentioning

confidence: 99%

Soil Enzymes and Microbial Activity as Influenced by Tillage and Fertilization in Wheat Production

et al. 2015

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FIELD experiment was conducted in Burg Elarab region, Egypt, …….to investigate the influence of five fertilization treatments and three tillage systems on wheat productivity, soil microbial biomass and some enzymes activity. Fertilization treatments were control (without treatment) (F1), Farmyard manure (F2), Compost (F3), Mineral fertilizers (F4) and mixture of farmyard manure + compost + chemical fertilizers (F5). Tillage systems were no tillage (NT), minimum tillage (MT) and conventional tillage (CT). Experiments were designed in a split plot based on randomized complete block design (RCBD) with three replications in 2010-11 and 2011-12 growing seasons. Main plots were the tillage systems while the fertilization treatments were arranged in sub plots. The highest rate of grain yield was produced in MT system under F5 treatment. CT system showed average reduction in grain yield of about 17% than MT; while CT showed average increasing of about 4% than NT in wheat grain yield. MT and NT systems increased soil microbial biomass compared to CT. Farm yard manure or compost applications increased soil microbial biomass significantly compared with mineral fertilizer. The urease, dehydrogenase and phosphatase activities in the F4 treatment were significantly lower than in the other fertilizer treatments F2, F3, and F5. The highest value of urease activity was under NT + F2 treatment in the two years of this study.

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“…However, there are some potential disadvantages associated with the WR system; these include reduced competition with weeds, and increased reliance on nonselective herbicides for weed control (Peltzer et al 2009). …”

mentioning

confidence: 99%

Herbicide Application Strategies for the Control of Rigid Ryegrass (Lolium rigidum) in Wide-Row Faba Bean (Vicia faba) in Southern Australia

Kleemann¹,

Gill²

2012

Weed technol.

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Two field experiments were undertaken at Roseworthy, South Australia from 2006 to 2007 to evaluate the performance of herbicide application strategies for the control of herbicide-resistant rigid ryegrass in faba bean grown in wide rows (WR). The standard farmer practice of applying postsowing PRE (PSPE) simazine followed by POST clethodim to faba bean grown in WR provided consistent and high levels of rigid ryegrass control (≥ 96%) and caused a large reduction (P < 0.05) in spike production (≤ 20 spikes m−2) as compared with nontreated control (560 to 722 spikes m−2). Furthermore, this herbicide combination resulted in greatest yield benefits for WR faba bean (723 to 1,046 kg ha−1). Although PSPE propyzamide used in combination with shielded interrow applications of glyphosate or paraquat provided high levels of rigid ryegrass control (≥ 93%), these treatments were unable to reduce ryegrass spike density within the crop row (20 to 54 spikes m−2) to levels acceptable for continued cropping. Furthermore, a yield reduction (13 to 29%) was observed for faba bean in treatments with shielded application of nonselective herbicides and could be related to spray drift onto lower leaves. These findings highlight that shielded interrow spraying in WR faba bean could play an important role in the management of rigid ryegrass in southern Australia. However, timing of shielded interrow applications on weed control, crop safety, and issues concerning integration with more effective early-season control strategies require attention.

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Weed management in wide-row cropping systems: a review of current practices and risks for Australian farming systems

Cited by 32 publications

References 88 publications

Eleven years of integrated weed management: long‐term impacts of row spacing and harvest weed seed destruction on Lolium rigidum control

Eleven years of integrated weed management: long‐term impacts of row spacing and harvest weed seed destruction on Lolium rigidum control

Soil Enzymes and Microbial Activity as Influenced by Tillage and Fertilization in Wheat Production

Herbicide Application Strategies for the Control of Rigid Ryegrass (Lolium rigidum) in Wide-Row Faba Bean (Vicia faba) in Southern Australia

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