PIM (Poppy Integrated Management): a bio‐economic decision support model for the management of <i>Papaver rhoeas</i> in rain‐fed cropping systems

Torra, Joel; Ranzenberger, Alicia Cirujeda; Guinjuan, Jordi Recasens; Taberner, A.; Powles, Stephen B.

doi:10.1111/j.1365-3180.2010.00761.x

Cited by 16 publications

(13 citation statements)

References 32 publications

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“…(creeping thistle); or ruderal species with long-persistent seedbanks, such as Polygonum aviculare L. (prostrate knotweed). These generally tolerant species are less strongly affected by intensive management practices and are well known to become increasingly dominant, thereby causing agricultural problems (Tiley 2010;Torra et al 2010). In contrast, most of the species that only occurred on organic farms were characterized by a low percentage of cover and low frequencies of occurrence, i.e.…”

Section: A- Band C-diversity In Contrasting Regionsmentioning

confidence: 99%

The β‐diversity of arable weed communities on organic and conventional cereal farms in two contrasting regions

Armengot

Sans

Fischer

et al. 2012

Applied Vegetation Science

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Questions: Do diversity components (a, b and c) differ across contrasting regions? What is the relative contribution of organic and conventional farming practices to the structuring of arable weed species diversity and different functional groups (legumes, grasses and broad-leaves)? To what extent do arable weed communities differ between regions and farming systems (organic vs conventional)?Location: Twenty-six farms in total in northeast Spain (Catalonia) and north Germany (Lower Saxony). Methods:We examined the weed flora in paired organic and conventional farms at each locality and assessed diversity components by additive partitioning of species richness (a, b and c).Results: The weed species composition differed greatly between the two regions. Only 18 of 135 arable weed species were shared. The a-, b-and c-diversity of all functional groups was significantly higher under organic farming practices for both regions, indicating an increasing homogenization of local communities by agricultural intensification within each region. b-diversity contributed most to the total observed species richness in both regions (69.8% and 35.8% on organic and conventional farms, respectively, in Catalonia; and 62.4% and 53.0% on organic and conventional farms, respectively, in Lower Saxony). These results demonstrate the great importance of environmental heterogeneity and of farm-specific differences in agricultural practices for the richness of arable weed species.Conclusions: Regardless of the substantial differences in arable weed community composition across regions, our study emphasizes the great importance of organic farming for arable weed species richness. Understanding the patterns and causes of the dissimilarity of local communities appears to be a key factor for species conservation and the development of effective European-wide agrienvironmental schemes at landscape and regional scales. This approach is in contrast to current nature conservation practices that are restricted primarily to local (field-and farm-scale) implementation.

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Section: A- Band C-diversity In Contrasting Regionsmentioning

confidence: 99%

The β‐diversity of arable weed communities on organic and conventional cereal farms in two contrasting regions

Armengot

Sans

Fischer

et al. 2012

Applied Vegetation Science

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“…Herbicides alone are not usually enough to control herbicide-resistant P. rhoeas populations (Rey-Caballero et al 2017a). Therefore, the development of integrated weed management (IWM) programs needs to be developed for for this species is required (Torra et al, 2010b). Various chemical and non-chemical tools have been used to control herbicide-resistant P. rhoeas populations.…”

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confidence: 99%

Management of Herbicide-Resistant Corn Poppy (Papaver rhoeas) under Different Tillage Systems Does Not Change the Frequency of Resistant Plants

et al. 2018

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Corn poppy (Papaver rhoeasL.) is the most widespread broadleaf weed species infesting winter cereals in Europe. Biotypes that are resistant to both 2,4-D and tribenuron-methyl, an acetolactate synthase (ALS) inhibitor, have evolved in recent decades, thus narrowing the options for effective chemical control. Though the effectiveness of several integrated weed management (IWM) strategies have been confirmed, none of these strategies have been tested to manage multiple herbicide–resistantP. rhoeasunder no-till planting. With the expansion of no-till systems, it is important to prove the effectiveness of such strategies. In this study, a field experiment over three consecutive seasons was conducted to evaluate and compare the effects of different weed management strategies, under either direct drilling (i.e., no-till) or intensive tillage, on a multiple herbicide–resistantP. rhoeaspopulation. Moreover, evaluations were carried out as to whether the proportions of ALS inhibitor–resistant individuals were affected by the tillage systems for each IWM strategy at the end of the 3-yr period. The IWM strategies tested in this research included crop rotation, delayed sowing, and different herbicide programs such as PRE plus POST or POST. All IWM strategies greatly reduced the initial density ofP. rhoeaseach season (≥ 95%) under either direct drilling or intensive tillage. After 3 yr, the IWM strategies were very effective in both tillage systems, though the effects were stronger under direct drilling (~95%) compared with intensive tillage (~86%). At the end of the study, the proportion of ALS inhibitor–resistant plants was not different between the IWM strategies in both tillage systems (94% on average). Therefore, crop rotation (with sunflower [Helianthus annuusL.]), delayed sowing, or a variation in the herbicide application timing are effective under direct drilling to manage herbicide-resistantP. rhoeas. Adoption of IWM strategies is necessary to mitigate the evolution of resistance in both conventional and no-till systems.

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“…These relationships allow prediction of seed production based on the weed biomass (Thompson et al, 1991;Norris, 2007). In our case the behaviour of plants surviving herbicides has interesting implications for studies of weed population dynamics -where variables as RB and fecundity across years become determinant-and also for the construction and outcomes of bioeconomic models, as has been studied by Torra et al (2010).…”

Section: Vegetative and Reproductive Biomassmentioning

confidence: 98%

Integrated effect of crop sowing date and herbicide stress on fitness of Bromus diandrus Roth

García

Royo‐Esnal

Torra

et al. 2015

Span. j. agric. res.

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Bromus diandrus Roth is a common weed species that has increased in no-tillage dry-land cereal fields in NE Spain because of the limited control options. The fitness response of plants with different emergence times (ETs) and its influence on demography has huge implications in weed management. With this subject, three ETs (F1, F2 and F3) of B. diandrus were established through three crop-sowing dates (D1, Oct.; D2, Nov.; D3, Dec.) for each of the three years in a barley-wheat-wheat rotation. In barley, the herbicides applied were not specific for B. diandrus, whereas in wheat the specific herbicide mesosulfuron-methyl plus iodosulfuron-methyl-sodium was applied. Plant density after treatments and fitness characteristics were estimated for each weed ET. Weed density decreased for later ETs and fitness was density-dependent, showing significantly higher values when a non-specific herbicide was applied, except in number of caryopses per spikelet. The increasing fitness shown by plants with later ETs and the linear relationships of vegetative biomass vs reproductive biomass and fecundity were disrupted by the herbicide mesosulfuron-methyl plus iodosulfuron-methyl-sodium. Plants that had survived this herbicide when wheat was growing had lower values for all the characteristics analysed. After three seasons, as a consequence of decreasing seed recruitment, a practical depletion of the B. diandrus population was achieved in F2 and F3 (<2.8 and <1 plants/m2, respectively) but not in F1 (60.5 plants/m2). This study shows the importance of delayed crop sowing to optimize the control of B. diandrus in cereal fields with no tillage.

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PIM (Poppy Integrated Management): a bio‐economic decision support model for the management of Papaver rhoeas in rain‐fed cropping systems

Cited by 16 publications

References 32 publications

The β‐diversity of arable weed communities on organic and conventional cereal farms in two contrasting regions

The β‐diversity of arable weed communities on organic and conventional cereal farms in two contrasting regions

Management of Herbicide-Resistant Corn Poppy (Papaver rhoeas) under Different Tillage Systems Does Not Change the Frequency of Resistant Plants

Integrated effect of crop sowing date and herbicide stress on fitness of Bromus diandrus Roth

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