Revisiting cropping systems research: An ecological framework towards long-term weed management

Benaragama, Dilshan I.; Willenborg, Christian J.; Shirtliffe, Steve J.; Gulden, Rob H.

doi:10.1016/j.agsy.2023.103811

Cited by 5 publications

References 92 publications

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Study of weeds and field plants of vegetable crops using the example of common potatoes

Mushinskiy,

Saudabaeva,

Panfilov

et al. 2024

BIO Web Conf.

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This paper presents the results of a study showing that in an area with moldboard tillage there are 16 species of weeds belonging to the following families: Roaceae B., Polygonaceae J, Chenopodiaceae V., Amaranthaceae J., etc. It has been established that with no-mouldboard tillage soils in the study area grow 33 plant species belonging to different families, such as Roaceae B., Polygonaceae J, Chenopodiaceaevent, Rubiaceae, etc. It was revealed that the dominant plant species in the study area were: Amaranthus Retroflexus L., A. blitoides S. Watson, Conyza canadensis (L.) Crong and other harmful cosmopolitan perennials, such as: Convōlvulus arvēnsis, Euphorbia waldstéinii, Cīrsium setōsum.

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Study of weeds and field plants of vegetable crops using the example of common potatoes

Mushinskiy,

Saudabaeva,

Panfilov

et al. 2024

BIO Web Conf.

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What we still don't know about weed diversity: A scoping review

Westbrook,

Wilcox,

Stup

et al. 2024

Weed Research

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Increased agricultural weed diversity is associated with reduced dominance of competitive weeds that reduce crop yields. In addition, diverse weed communities can promote biodiversity at other trophic levels and enhance ecosystem services. For both reasons, there is increasing interest in the relationship between agricultural management and weed diversity. Existing information in this area is limited, relative to the large number of influential factors, but knowledge is increasing rapidly. We conducted a scoping review to determine when, where, and how weed diversity has been evaluated in relation to management. From an initial set of 10 236 items retrieved from Web of Science and Scopus, 7198 were screened and 331 were included. The median publication year was 2015. Nearly half of all studies were conducted in Europe (n = 161, 49%). Organic cropping systems were included in 48 studies (15%). Tillage was the most common management factor (n = 111, 34%), followed by crop rotation (n = 73, 22%). There were 135 studies in which management factors were implemented for six or more years (41%). Most studies included measurements of species richness (n = 265, 80%) and/or Shannon–Wiener diversity (n = 145, 44%). Overall, this review identified a small and heterogenous—but quickly growing—body of literature on weed diversity. Priority areas for future research should include weed diversity beyond field crops in temperate environments, weed seedbanks, functional diversity, and best practices for measuring weed diversity.

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The impact of herbicide-resistant canola systems on the weed community dynamics in the Canadian Prairies

Chastko,

Benaragama,

Leeson

et al. 2024

Can. J. Plant Sci.

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Increased adoption of no-till and extensive cultivation of herbicide-resistant (HR) crops in low diversity rotations are some of the transformations that occurred during the 1970s-2000s in western Canada. How these transformations in canola-based crop rotations impacted weed communities are not comprehensively studied. Historical data analysis of weed survey data ( Saskatchewan, Manitoba and Alberta) in canola crops and a canola rotation field experiment were used to understand how tillage, herbicide-resistant cropping systems, and frequency of canola in the rotation can impact weed abundance, composition, and diversity in the Canadian prairies. Weed survey data revealed that the frequency of many weed species declined in years after 1995 compared with before 1995, the year HR cultivars were introduced. Gallium spurium (false cleavers) and volunteer wheat (Triticum aestivum L.) were the only species showing a continuous increase in frequency throughout the surveyed years. Species richness showed no trajectories but varied depending on climatic conditions. Glyphosate-resistant (G.R.) systems were associated with green foxtail irrespective of their frequency in the rotation. Wild oat was predominant in the longer rotations with glufosinate and imidazolinone-resistant canola. In the field study, weeds associated with pre-herbicide weed control timing were relatively controlled when herbicides were applied (glyphosate and glufosinate), except for foxtail barley (Hordium Jubatum L), which was not controlled in most HR systems. Overall, both weed survey data and field experiment data revealed greater control of most weed species due to growing of HR canola cultivars.

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Revisiting cropping systems research: An ecological framework towards long-term weed management

Cited by 5 publications

References 92 publications

Study of weeds and field plants of vegetable crops using the example of common potatoes

Study of weeds and field plants of vegetable crops using the example of common potatoes

What we still don't know about weed diversity: A scoping review

The impact of herbicide-resistant canola systems on the weed community dynamics in the Canadian Prairies

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