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  • Condições de drenagem relacionadas ao trânsito de máquinas em solo de várzea (RS-Brasil)

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    90912_1.pdf (193.7Kb)
    Author(s)
    Louzada, JA
    Caicedo, N
    Helfer, F
    Griffith University Author(s)
    Helfer, Fernanda
    Year published
    2008
    Metadata
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    Abstract
    The exploration of flood plains soils in the State of Rio Grande do Sul (Brazil) has been historically restricted to the binomial 'irrigated rice crop - livestock'. Among several factors that contribute to that situation, the bad drainage conditions are one of the most important. In relation to irrigated rice, this situation promotes late planting and, consequently, productivity reduction. After validation with measured data in a typical flood plain soil of Rio Grande do Sul, the SWAP model was used to simulate scenarios under different drainage conditions. The results were compared with criteria that evaluate soil tillage ...
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    The exploration of flood plains soils in the State of Rio Grande do Sul (Brazil) has been historically restricted to the binomial 'irrigated rice crop - livestock'. Among several factors that contribute to that situation, the bad drainage conditions are one of the most important. In relation to irrigated rice, this situation promotes late planting and, consequently, productivity reduction. After validation with measured data in a typical flood plain soil of Rio Grande do Sul, the SWAP model was used to simulate scenarios under different drainage conditions. The results were compared with criteria that evaluate soil tillage possibility based on moisture values. This comparison showed a close relationship between subsurface and surface drainage. When surface drainage is satisfactory, soil moisture contents can be compatible with soil tillage, even if subsurface drains are too widely spaced. Otherwise, the increase in number of workable days for mechanization requires very closely-spaced subsurface drains.
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    Journal Title
    Revista Brasileira de Engenharia Agrícola e Ambiental
    Volume
    12
    Issue
    1
    DOI
    https://doi.org/10.1590/S1415-43662008000100015
    Copyright Statement
    © The Author(s) 2008. This is an Open Access article distributed under the terms of the Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Subject
    Agricultural Engineering
    Publication URI
    http://hdl.handle.net/10072/57045
    Collection
    • Journal articles

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