Consulta: creatorFacets:"Siqueira,Raphael Henrique da Silva"
Registros recuperados: 3
Data/hora: 12/06/2024 02:37:48

Arbuscular mycorrhizal fungi on the biomass and nutrition of Urochloa decumbens at different soil densities
Provedor de dados: 86
Autores: Sales,Luciane Reis; Silva,Geanderson Nascimento da; Siqueira,Raphael Henrique da Silva; Carneiro,Marco Aurélio Carbone; Faquin,Valdemar.
Abstract: The objective of this work was to evaluate the influence of arbuscular mycorrhizal fungi (AMF) on the accumulation of shoot and root biomass and on the nutrient contents of Urochloa decumbens grown in soils with different densities. The experiment was carried out in a randomized complete block design, in a 4x2 factorial arrangement: four soil densities (1.0, 1.2, 1.4, and 1.6 kg dm-3) with and without inoculation of AMF, with four replicates. The biomass accumulation (dry matter weight of shoot and roots) and macro- and micronutrient contents of U. decumbens were determined at different soil densities. The mycorrhizal colonization of the plants was evaluated, and the number of mycorrhizal spores present in the soil was determined. The biomass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AMF; Dry matter; Macro - and micronutrients; Soil compaction.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000800943

Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café
Provedor de dados: 90
Autores: Siqueira,Raphael Henrique da Silva; Ferreira,Mozart Martins; Alcântara,Elifas Nunes de; Carvalho,Raphael Comanducci da Silva.
O controle de plantas daninhas em cultivos de cafeeiros tem expressivo efeito na qualidade física do solo, influenciando, entre outros atributos, na sua estabilidade estrutural. Neste trabalho, objetivou-se avaliar o estado de agregação das partículas primárias de um Latossolo Vermelho-Amarelo (LVA) cultivado com cafeeiros, quando submetido a diversos métodos de controle de plantas invasoras. Os métodos de controle de plantas invasoras avaliados foram: manutenção da entrelinha coberta com amendoim-forrageiro (Arachis pintoi L.) e capim-braquiária (Brachiaria decumbens); controle mecânico com grade, roçadora, trincha e capina manual; controle químico com herbicidas de pós e pré-emergência; e ausência de controle, mantendo a entrelinha sem capina. O...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Controle do mato; Estabilidade de agregados; Dispersão da argila.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400008

Water retention and s index of an oxisol subjected to weed control methods in a coffee crop
Provedor de dados: 64
Autores: Siqueira,Raphael Henrique da Silva; Ferreira,Mozart Martins; Alcântara,Elifas Nunes de; Silva,Bruno Montoani; Silva,Raphael Comanducci.
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...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Weed management; Physical quality of the soil; Soil water retention.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500006