Estimating the farm-level economic costs of spring cropping to manage Alopecurus myosuroides (black-grass) in UK agriculture

Ahodo, Kwadjo; Oglethorpe, David; Hicks, Helen L.; Freckleton, Robert P.

doi:10.1017/s0021859619000650

Cited by 8 publications

(3 citation statements)

References 35 publications

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“…Some of these resultant impacts are soil erosion, soil degradation, depletion of nutrients, pest and disease infestation, soil impaction etc. [32]; [33]; [34]. The soil support both crop and weed species and both inter-relate in the course of growth and development for nutrients, space, light, water [35].…”

Section: Discussionmentioning

confidence: 99%

Impact of farming system practices on weeds in arable farmlands in University of Port Harcourt and environs, Rivers State-Nigeria

Ogazie¹,

Agbagwa²,

Ochekwu³

2022

World J. Adv. Res. Rev.

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Crop production involves the combination of various farming systems practices to produce food and cash crops and at the same time have a reasonable control over weed infestation without course to soil health. Weeds are part of agroecosystems community and are neighbors to our crops and the soil. The work was aimed to investigate the weeds that are common in the sites chosen. A simple reconnaissance weed enumeration survey was adopted for the twenty-two (22) arable farmlands by walk through the farms within and round the boundaries. This was investigated between June 2020 as wet season and in January, 2021 as dry season respectively. A total of 154 weed species were recorded for both wet and dry seasons. The wet and dry seasons had 113 and 120 weed species made up of 37 and 36 families respectively. It revealed 168 broad leaved, 32 grasses and 26 sedges, composed of annual and perennial weed species. All the farms were continuously cultivated and mixed cropped, with 27 crop species identified and recorded. The farmers most preferred crops are Manihot esculenta Crantz being a tuberous crop and Zea mays L., grain cereal with 90.91% each from the overall percentage of individual crop species recorded from farmers who planted them on their farmland (Table 1) respectively, and been staple food items in most part of Nigeria, while the least cropped species are (Amaranthus hybridus L., and Solanum lycopersicon L., Ocimum. americanum L., and Solanum sp.) with 4.54% each respectively which are vegetables to supplement peoples ‘diet. Farming systems methods has a tremendous influence on weed species composition in arable farmlands either during the cropping season (wet) or off the season (dry). Some activities are very peculiar within crop production for example bush clearing, and burn, soil tillage in any form or pattern and weed removal either culturally, biological or chemically due impact on weed species in arable farmlands in short or long term and therefore, its impact on crop species and the environment should be minimized and sustained.

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Section: Discussionmentioning

confidence: 99%

Impact of farming system practices on weeds in arable farmlands in University of Port Harcourt and environs, Rivers State-Nigeria

Ogazie¹,

Agbagwa²,

Ochekwu³

2022

World J. Adv. Res. Rev.

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“…For example, modeling simulations have been shown to reduce glyphosate resistance in Palmer amaranth by two-fold if glyphosate-tolerant (GR) cotton is rotated with GR corn [60]. An increasing number of herbicide-resistant weeds left farmers with fewer herbicide options; for instance, farmers in the United Kingdom are adopting crop rotation in spring to control herbicide-resistant blackgrass (Alopecurus myosuroides) [61]. A survey in Germany indicated that 89% of the farmers use crop rotation to control or prevent herbicide resistance [62].…”

Section: Crop Rotationmentioning

confidence: 99%

Crop Diversification for Improved Weed Management: A Review

Sharma¹,

Shrestha²,

Kunwar³

et al. 2021

Preprint

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Weeds are among the major constraints to any crop production system, reducing productivity and profitability. Herbicides are among the most effective methods to control weeds, and reliance on herbicides for weed control has increased significantly with the advent of herbicide-resistant crops. Unfortunately, over-reliance on herbicides leads to environmental-health issues and herbicide-resistant weeds, causing human-health and ecological concerns. Crop diversification can help manage weeds sustainably in major crop production systems. It acts as an organizing principle under which technological innovations and ecological insights can be combined to manage weeds sustainably. Diversified cropping can be defined as the conscious inclusion of functional biodiversity at temporal and/or spatial levels to improve the productivity and stability of ecosystem services. Crop diversification helps to reduce weed density by negatively impacting weed seed germination and weed growth. Additionally, diversified farming systems are more resilient to climate change than monoculture systems and provide better crop yield. However, there are a few challenges to adopting a diversified cropping system, which ranges from technology innovations, government policies, farm-level decisions, climate change, and market conditions. In this review, we discuss how crop diversification supports sustainable weed management, the challenges associated with it, and the future of weed management with respect to the diversification concept.

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“…We tackle the problem of modelling the population dynamics of a damaging arable weed (black‐grass, Alopecurus myosuroides ) in response to management across multiple sites using incomplete data. Black‐grass is a particularly problematic weed in western Europe, where over the past 30 years it has evolved target and non‐target site resistance to multiple herbicides (Comont et al., 2019; Délye et al., 2010, 2011; Hicks et al., 2018; Kemp et al., 1990; Menchari et al., 2007), and causes severe economic damage (Ahodo et al., 2019; Varah et al., 2020). We include management variables that describe herbicide pressure, cultural control via cultivation and cropping, and the timing of interventions, alongside data on herbicide resistance and soil quality.…”

Section: Introductionmentioning

confidence: 99%

Quantifying the impacts of management and herbicide resistance on regional plant population dynamics in the face of missing data

Goodsell,

Comont,

Hicks

et al. 2024

Journal of Applied Ecology

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A key challenge in the management of populations is to quantify the impact of interventions in the face of environmental and phenotypic variability. However, accurate estimation of the effects of management and environment, in large‐scale ecological research is often limited by the expense of data collection, the inherent trade‐off between quality and quantity, and missing data. In this paper we develop a novel modelling framework, and demographically informed imputation scheme, to comprehensively account for the uncertainty generated by missing population, management, and herbicide resistance data. Using this framework and a large dataset (178 sites over 3 years) on the densities of a destructive arable weed (Alopecurus myosuroides) we investigate the effects of environment, management, and evolved herbicide resistance, on weed population dynamics. In this study we quantify the marginal effects of a suite of common management practices, including cropping, cultivation, and herbicide pressure, and evolved herbicide resistance, on weed population dynamics. Using this framework, we provide the first empirically backed demonstration that herbicide resistance is a key driver of population dynamics in arable weeds at regional scales. Whilst cultivation type had minimal impact on weed density, crop rotation, and earlier cultivation and drill dates consistently reduced infestation severity. Synthesis and applications: As we demonstrate that high herbicide resistance levels can produce extremely severe weed infestations, monitoring herbicide resistance is a priority for farmers across Western Europe. Furthermore, developing non‐chemical control methods is essential to control current weed populations, and prevent further resistance evolution. We recommend that planning interventions that centre on crop rotation and incorporate spring sewing and cultivation to provide the best reductions in weed densities. More generally, by directly accounting for missing data our framework permits the analysis of management practices with data that would otherwise be severely compromised.

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Estimating the farm-level economic costs of spring cropping to manage Alopecurus myosuroides (black-grass) in UK agriculture

Cited by 8 publications

References 35 publications

Impact of farming system practices on weeds in arable farmlands in University of Port Harcourt and environs, Rivers State-Nigeria

Impact of farming system practices on weeds in arable farmlands in University of Port Harcourt and environs, Rivers State-Nigeria

Crop Diversification for Improved Weed Management: A Review

Quantifying the impacts of management and herbicide resistance on regional plant population dynamics in the face of missing data

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