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All publications of “David José Miquelluti”

7 results

Water Erosion in a Long-Term Soil Management Experiment with a Humic Cambisol

Jefferson Schick, Ildegardis Bertol, Fabrício Tondello Barbosa, David José Miquelluti, Neroli Pedro Cogo

01/Aug/2017

ABSTRACT Water erosion, the main factor in soil degradation, is strongly influenced by soil cover and management. The objective of this study was to determine soil and water losses under natural rainfall conditions from 1993 to 2012 in the southern Santa Catarina Plateau, Brazil, in 3.5 × 22.1 m plots with crops in rotation to study the following management treatments: conventional tillage (CT), minimum tillage (MT), and no-tillage (NT), and a treatment with bare soil (BS). The soil cover remaining […]

Pedological Heterogeneity of Soils Developed from Lithologies of the Pirambóia, Sanga-do-Cabral, and Guará Geological Formations in Southern Brazil

Pablo Grahl dos Santos, Jaime Antonio de Almeida, Letícia Sequinatto, David José Miquelluti

21/Jul/2017

ABSTRACT The source material is one of the factors that most influence soil genesis and the mainly responsible for the nature, composition, and behavior of the soil. Given the geological complexity of the Santa Maria River basin, the objective of this study was to investigate whether the new lithologies described recently may be responsible for a greater variation in soil properties, as well as in the soil taxonomy itself. The study area is located in the municipality of Rosário do […]

GROUPS OF INCEPTISOL PEDONS BASED ON CHEMICAL AND PHYSICAL PROPERTIES APPLYING MULTIVARIATE STATISTICS

Pablo Grahl dos Santos, Ildegardis Bertol, David José Miquelluti, Jaime Antônio Almeida, Álvaro Luiz Mafra

01/Mar/2015

In a soil survey, a detailed description of a set of soil properties is important for analyzing and understanding the interactions of several soil forming processes. Thus, multivariate analysis may be an important statistical tool to better interpret and understand the relationships and similarities between pedons. The aim of this study was to differentiate and group similar pedons based on physical and chemical properties using multivariate statistics. The study was carried out in Lages, SC, Brazil, at 27º 48’ S […]

Maximun phosphorus adsorption capacity and binding energy constant of an oxisol fitting different langmuir models

Clovisson Menotti Boeira de Oliveira, Luciano Colpo Gatiboni, David José Miquelluti, Thomas Jot Smyth, Jaime Antonio Almeida

01/Dec/2014

Maximum phosphorus adsorption capacity (Pmax) is a useful tool for characterizing the phosphorus (P) sorption of soils, and the Langmuir model, which allows this estimate, has widespread use. However, estimated values of Pmax and the binding energy constant (k) may be quite different when fitted to non-linear or linearized Langmuir models, or models with single or multiple regions. The objective of this study was to compare the effect of using different methods to fit the Langmuir model to the estimation […]

Partial substitution of soluble phosphate by rock phosphate in the planting of Eucalyptus benthamii and Eucalyptus dunnii in southern Brazil

Luciana Patrícia Rosa Dias, Luciano Colpo Gatiboni, Paulo Roberto Ernani, David José Miquelluti, Djalma Miler Chaves, Gustavo Brunetto

01/Apr/2014

Phosphorus fertilization is important for the initial growth of eucalyptus. Soluble phosphate (SP) sources are commonly used for this purpose because they offer fast dissolution in the soil, but these sources have higher costs than rock phosphate (RP), which has lower solubility. The aim of this study was to evaluate the use of RP as a partial substitute for SP for the initial supply of P to Eucalyptus benthamii and E. dunnii. Two field experiments were carried out (one with […]

Arsenate and cadmium content in soils of the cerrado bioma

Mari Lucia Campos, Luiz Roberto Guimarães Guilherme, João José Granate de Sá e Melo Marques, Nilton Curi, Alessandra Siqueira Antunes Araújo, David José Miquelluti, [...]

01/Feb/2013

Knowledge on As and Cd levels in soils is important to monitor the entry of these elements into the food chain from anthropogenic sources. The purpose of this study was to determine the natural content of As and Cd in representative soils of the Cerrado region, Brazil. Soil samples were collected from three sub-regions: G (eastern Goiás), T (Triângulo Mineiro) and N (northeastern MG). To determine the soil levels of As and Cd, samples were digested by acid attack in […]

Soil chemical properties and grapevine yield affected by cover crop management in Serra Gaucha, Southern Brazil

Jaqueline Dalla Rosa, Álvaro Luiz Mafra, Marcos André Nohatto, Evandro Zacca Ferreira, Odoni Loris Pereira de Oliveira, David José Miquelluti, [...]

01/Feb/2009

Soil management can have effects on nutrient availability and fruit yield. The objective of this study was to evaluate the effect of phytomass management forms of different cover crop species on soil chemical properties related to organic matter, nutrient availability, and on grapevine yields. The experiment was carried out in Embrapa Uva e Vinho, in Bento Gonçalves, RS, in Southern Brazil, on a Haplic Cambissol, in a vineyard established in 1989, using White and Rose Niagara grape in a horizontal […]