Data/hora: 12/06/2024 02:15:28

Provedor de dados: | 64
País: | Brazil
Título: | Water retention and s index of an oxisol subjected to weed control methods in a coffee crop
Autores: | Siqueira,Raphael Henrique da Silva; Ferreira,Mozart Martins; Alcântara,Elifas Nunes de; Silva,Bruno Montoani; Silva,Raphael Comanducci.
Data: | 2014-10-01
Ano: | 2014
Palavras-chave: | Weed management; Physical quality of the soil; Soil water retention.
Resumo: | Weed control in different crops affects the chemical, physical, and biological properties of the soil and consequently its structural quality. The objective of this study was to evaluate, using water retention characteristics and the S index, the physical quality of an Oxisol (Red-Yellow Latosol), subjected to weed control during the cultivation of coffee. The following weed control methods were evaluated: harrowing, brushcutting, residue crushing, manual weeding, post-emergence herbicide application, pre-emergence herbicide application, and maintenance of soil cover with peanut forage, Brachiaria grass, and spontaneous vegetation (no weed treatment). The following properties were determined for physical characterization of the soil: bulk density, total porosity, macroporosity, microporosity, water retention, and the S index. The weed control method significantly affected the physical properties and water retention in the subsurface layer of the Oxisol. Soil bulk density, total porosity, macroporosity, and microporosity were significantly correlated with the S index. According to the S index, the physical quality of the soil was classified as very good for the various weed control methods investigated.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500006
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/S1413-70542014000500006
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.38 n.5 2014
Fonte: | info:eu-repo/semantics/openAccess