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This work was supported by the Junta de Andalucia.

Analysis of institutional authors

Pardo G.Corresponding AuthorCirujeda A.Author

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October 5, 2021
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EFFECTS OF REDUCED AND CONVENTIONAL TILLAGE ON WEED COMMUNITIES: RESULTS OF A LONG-TERM EXPERIMENT IN SOUTHWESTERN SPAIN

Publicated to:Planta Daninha. 37 (e019201336): e019201336- - 2019-01-01 37(e019201336), DOI: 10.1590/s0100-83582019370100152

Authors: Pardo, G; Cirujeda, A; Perea, F; Verdu, A M C; Mas, M T; Urbano, J M

Affiliations

Univ Politecn Cataluna, Escola Super Agr Barcelona, Barcelona, Spain - Author
Univ Seville, Seville, Spain - Author
Univ Zaragoza, IA2, Ctr Invest & Tecnol Agroalimentaria Aragon, CITA, Zaragoza, Spain - Author
Universidad de Zaragoza - Author
Universitat Politècnica de Catalunya - Author
University of Seville - Author
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Abstract

An important drawback in adopting minimum tillage (MT) and no-tillage (NT) techniques is the frequently observed weed shift promoting adapted species and achieving poorer weed control. These changes can be detected best with long-term experiments, and results might differ depending on soil characteristics and the local flora. The objectives of this work were to evaluate the effect of reduced tillage on weed seed distribution in the soil profile and to identify possible consequences on weed diversity on a long-term experiment maintained during 24 years in Seville (Spain) with three tillage systems: NT, MT and conventional tillage (CT) including moldboard plow on a vertisol. For this purpose, soil seedbanks at 0-8 cm and 8-16 cm depths were enumerated in autumn 2005 and in-field emerged plants in autumn 2005 and winter 2006. Shannon diversity index (H) and evenness (J') were calculated for seedbank and aboveground weed communities. Total weed seed density was highest for NT and lowest for CT Some big-seeded species, such as Chrozophora tinctorea L., showed highest seed density in CT NT increased the relative density of Amaranthus blitoides S. Watson seeds in the seedbank and the abundance of emerged plants of Malva parviflora L., Anagallis arvensis L. and Picris echioides L. Overall, MT led to a less diverse seedbank in the 0-8 cm depth of soil than CT The frequent drought-induced deep fractures in the expandable clay soil caused natural tillage, which probably resulted in fewer differences in weed seed and seedling densities among tillage treatments compared to what might be expected in other soil types.

Keywords

Cereal fieldsCrop-rotationDiversity indexesIntensityLoamManagementMechanical weed controlMinimum tillageMoldboard plowNo-tillNo-tillageSeedbankSizeSoil propertiesSystems

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Planta Daninha, and although the journal is classified in the quartile Q4 (Agencia WoS (JCR)), its regional focus and specialization in Plant Sciences, give it significant recognition in a specific niche of scientific knowledge at an international level.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-07-16:

  • WoS: 9
  • Scopus: 13

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-16:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 17 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
    • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: http://hdl.handle.net/10532/4920

    Leadership analysis of institutional authors

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Pardo Sanclemente, Gabriel) .

    the author responsible for correspondence tasks has been Pardo Sanclemente, Gabriel.