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Provedor de dados:  PAB
País:  Brazil
Título:  Thermo-physical-hydraulic variables in a no-tillage system related to wheeled traffic and furrow-opening mechanisms
Autores:  Zulpo,Lucas
Kerpen,Hyran Stefanowski
Fink,Jefferson Antonio
Data:  2019-01-01
Ano:  2019
Palavras-chave:  Zea mays
No-tillage system
Furrow-opening mechanisms
Soil compaction
Soil temperature
Resumo:  Abstract: The objective of this work was to evaluate the impact of different furrow-opening mechanisms on soil physical characteristics, such as mobilization, porosity, bulk density, and the dynamics of water content and temperature in the sowing groove, as well as the influence of wheeled traffic and of these variables on corn (Zea mays) productivity. The experiment was conducted at the agronomic experimental station of Universidade Federal do Rio Grande do Sul on a Argissolo Vermelho (red Ultisol). Treatments consisted of three winter cover crops and of two types of furrow-opening mechanisms for fertilization (shank and disk), with or without tractor traffic. Corn was planted as the summer crop, and soil mobilization in the sowing groove, soil temperature and moisture content during the crop cycle, and soil physical conditions, such as bulk density and porosity, were evaluated. Tractor traffic and the type of furrow-opening mechanism used did not affect significantly soil temperature and moisture content during the development of the corn crop; however, significant differences were observed in grain productivity and soil mobilization, bulk density, and porosity.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira
Relação:  10.1590/s1678-3921.pab2019.v54.00171
Formato:  text/html
Fonte:  Pesquisa Agropecuária Brasileira v.54 2019
Direitos:  info:eu-repo/semantics/openAccess

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