Modelling vertical and lateral seed bank movements during mouldboard ploughing

Colbach, Nathalie; Roger-Estrade, Jean; Chauvel, Bruno; Caneill, Jacques

doi:10.1016/s1161-0301(00)00069-1

Cited by 58 publications

(48 citation statements)

References 24 publications

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“…The movement of weed seeds after inversion tillage (MB) was estimated from Colbach et al (2000), Roger-Estrade et al (2001) and Mohler et al (2006). In this regard, 80% of any seeds in the surface or shallow seed banks are moved to the deep seed bank, and 30% of any deep seed moved to the shallow seed bank.…”

Section: Adaptations To Perth To Account For Mouldboard Ploughingmentioning

confidence: 99%

“…Most seeds reside in the top few cm of soil after years of NT (Yenish et al, 1996) and use of the skim-coulter in this situation will increase the seed burial efficacy of MB, by placing topsoil, with the weed seeds, at the bottom of the furrow. Nonetheless, the burial efficacy of 'surface' seeds (0-5 cm) with the MB can vary from 50% to 99% (Colbach et al, 2000;Roger-Estrade et al, 2001;Mohler et al, 2006). Also, it is well known that factors such as soil water, texture and structure have an effect on depth of working and soil placement with the MB and this would alter the efficacy of burial of weed (Carter and Ivany, 2006).…”

Section: Effect Of Varying Mouldboard Burial Efficacy On the Durabilimentioning

confidence: 99%

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Occasional mouldboard ploughing slows evolution of resistance and reduces long-term weed populations in no-till systems

Renton

Flower

2015

Agricultural Systems

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Section: Adaptations To Perth To Account For Mouldboard Ploughingmentioning

confidence: 99%

Section: Effect Of Varying Mouldboard Burial Efficacy On the Durabilimentioning

confidence: 99%

Occasional mouldboard ploughing slows evolution of resistance and reduces long-term weed populations in no-till systems

Renton

Flower

2015

Agricultural Systems

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“…1). According to this model, the sine of the inclination angle of these clods can be calculated as the ratio of ploughing depth to ploughing width (Colbach et al, 2000;Roger-Estrade et al, 2000). For this crosssection, assuming an apparent ploughing width of 50 cm (the ploughing depth is 40 cm), there results an inclination angle of 538.…”

Section: Construction Of a 2d Cross-section-visual Observationsmentioning

confidence: 99%

Estimating spatial distributions of hydraulic parameters for a two-scale structured heterogeneous lignitic mine soil

Buczko

Gerke

2005

Journal of Hydrology

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“…Regardless of soil aggregate size, seed number is generally greatest in the upper 5 cm of soil (Reuss et al, 2001) and weed seeds in the surface layer germinate and create problems (Colbach et al, 2000). Agricultural practices change the population and composition of weeds and the soil seed bank in agro-ecosystems, although most weed management systems do not consider the impact on weed population dynamics (Davis et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Effect of cropping systems and crop rotations on weeds

Koocheki

Nassiri

Alimoradi

et al. 2009

Agron. Sustain. Dev.

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-Dynamics of weed populations in arable fields are influenced by environmental and soil characteristics and also by cropping system and management practices. Manipulation of cropping systems to improve weed management requires a better understanding of the spatial and temporal dynamics of weeds, seed losses and seed production. To assess the effect of different cropping systems and various crop rotations on the weed population and seed bank, we conducted a field study at the experimental farm in Khorasan Agricultural Research Center, Mashhad, Iran. The experimental design was a split plot with 3 crop rotations as the main plots, and five cropping systems consisting of high-input, medium-input, low-input, organic and integrated systems applied to the sub-plots. Our results show that weed seed densities in organic and integrated cropping systems, of about 5000-6000 seeds/m 2 were higher than conventional and high-input cropping systems showing about 2000 seeds/m 2 . Weed seed density in continuous winter wheat of approximately 6300 seeds/m 2 was higher than other rotations with about 5000 seeds/m 2 . Weed composition in the high-input system was 11 species with 66 plants/m 2 . Whereas in the low-input and organic systems, the weed populations were 15 and 13 species with 145 and 220 plants/m 2 , respectively. Changes in weed seed bank density and species composition often occur when crop management practices and crop rotations are altered. For example, continuous winter wheat fields showed more annual grass weeds, but broadleaf weeds were more abundant in sugar beet-winter wheat rotation. The weed population in continuous winter wheat plots comprised 90% grass and sedge weeds, while in sugar beet-wheat rotation, it was only 43% of total weed density. Broadleaf weeds were 55.2% in sugar beet-winter wheat but 9.4% of total weed density in continuous winter wheat. Different rotations that include crops with different life cycles such as winter wheat-maize and winter wheat-sugar beet could lead to additional benefits of reducing the weed seed bank.conventional agriculture / ecological farming / integrated crop management / low-input crop production / organic farming

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Modelling vertical and lateral seed bank movements during mouldboard ploughing

Cited by 58 publications

References 24 publications

Occasional mouldboard ploughing slows evolution of resistance and reduces long-term weed populations in no-till systems

Occasional mouldboard ploughing slows evolution of resistance and reduces long-term weed populations in no-till systems

Estimating spatial distributions of hydraulic parameters for a two-scale structured heterogeneous lignitic mine soil

Effect of cropping systems and crop rotations on weeds

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