• en
  • pt-br

All publications of “Fabrício Tondello Barbosa”

18 results

Long-Term Effect of Soil Use and Management on Organic Carbon and Aggregate Stability

Neuro Hilton Wolschick, Fabrício Tondello Barbosa, Ildegardis Bertol, Bárbara Bagio, Danieli Schneiders Kaufmann

05/Sep/2018

ABSTRACT: The conversion of native grassland into farmland causes changes in the soil. Tillage has profound effects on soil organic matter. The intensification of soil tillage decreases soil quality by reducing aggregate stability. Soil aggregate stability and soil organic matter are key indicators for soil quality and environmental sustainability in agro-ecosystems. The aim of the present study is to evaluate the total organic carbon content and the physical and chemical fractions of the organic matter in a soil under different […]

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 […]

Soil Properties and Plant Biomass Production in Natural Rangeland Management Systems

Romeu de Souza Werner, Fabrício Tondello Barbosa, Ildegardis Bertol, Neuro Hilton Wolshick, Kristiana Fiorentin dos Santos, Josie Moraes Mota

05/Oct/2016

ABSTRACT Improper management of rangelands can cause land degradation and reduce the economic efficiency of livestock activity. The aim of this study was to evaluate soil properties and quantify plant biomass production in four natural rangeland management systems in the Santa Catarina Plateau (Planalto Catarinense) of Brazil. The treatments, which included mowed natural rangeland (NR), burned natural rangeland (BR), natural rangeland improved through the introduction of plant species after harrowing (IH), and natural rangeland improved through the introduction of plant […]

WATER INFILTRATION IN TWO CULTIVATED SOILS IN SOUTHERN BRAZIL

Ildegardis Bertol, Fabrício Tondello Barbosa, Camilo Bertol, Rodrigo Vieira Luciano

01/Mar/2015

Infiltration is the passage of water through the soil surface, influenced by the soil type and cultivation and by the soil roughness, surface cover and water content. Infiltration absorbs most of the rainwater and is therefore crucial for planning mechanical conservation practices to manage runoff. This study determined water infiltration in two soil types under different types of management and cultivation, with simulated rainfall of varying intensity and duration applied at different times, and to adjust the empirical model of […]

Soil water erosion under different cultivation systems and different fertilization rates and forms over 10 years

Ildegardis Bertol, Fabrício Tondello Barbosa, Álvaro Luiz Mafra, Murilo Córdova Flores

01/Dec/2014

The action of rain and surface runoff together are the active agents of water erosion, and further influences are the soil type, terrain, soil cover, soil management, and conservation practices. Soil water erosion is low in the no-tillage management system, being influenced by the amount and form of lime and fertilizer application to the soil, among other factors. The aim was to evaluate the effect of the form of liming, the quantity and management of fertilizer application on the soil […]

Influence of single application pig slurry on water erosion in a typical alfisol under no tillage

José Mecabô Júnior, Ildegardis Bertol, Fabrício Tondello Barbosa, Gabriel de Souza Oselame

01/Oct/2014

Pig production in the State of Santa Catarina, Brazil, is responsible for many jobs in the rural area and it has great social and economic importance. This study was carried out from March to September 2012 to evaluate the influence of a single application of pig slurry to an Ultisol (Nitossolo Bruno aluminoférrico húmico) soil on losses of water, soil, P and K due to water erosion. Treatments consisted of application rates of 0 (zero), 50, 100, and 200 m3 […]

Influence of the surface conditions and soil cultivation on water erosion in an inceptisol

Júlio César Ramos, Ildegardis Bertol, Fabrício Tondello Barbosa, Juliana Marioti, Romeu de Souza Werner

01/Oct/2014

The soil cover by crop residues dissipates the kinetic energy of raindrops, while, the surface roughness dissipates the kinetic energy of runoff, therefore, both store water and retain sediments on surface, decreasing water erosion. The objective of this study was to determine the persistence and the influence of crop residues and surface roughness in cultivated soil on soil and water losses, compared to bare and uncovered soil under the following treatments: i) cultivated soil: covered by ryegrass mulch (Lolium multiflorum), […]

Hydrological processes obtained on the plot scale under four simulated rainfall tests during the cycle of different crop systems

Ildegardis Bertol, Roger Robert Ramos, Fabrício Tondello Barbosa, Julio César Ramos, Douglas Henrique Bandeira, Mitsui Shinosaka Tanaka

01/Apr/2014

The cropping system influences the interception of water by plants, water storage in depressions on the soil surface, water infiltration into the soil and runoff. The aim of this study was to quantify some hydrological processes under no tillage cropping systems at the edge of a slope, in 2009 and 2010, in a Humic Dystrudept soil, with the following treatments: corn, soybeans, and common beans alone; and intercropped corn and common bean. Treatments consisted of four simulated rainfall tests at […]

Water erosion in no-tillage monoculture and intercropped systems along contour lines

Ildegardis Bertol, Roger Robert Ramos, Fabrício Tondello Barbosa, Antonio Paz González, Julio César Ramos, Douglas Henrique Bandeira

01/Apr/2013

Water erosion is the major cause of soil and water losses and the main factor of degradation of agricultural areas. The objective of this work was to quantify pluvial water erosion from an untilled soil with crop rows along the contour, in 2009 and 2010, on a Humic Dystrupept, with the following treatments: a) maize monoculture; b) soybean monoculture; c) common bean monoculture; d) intercropped maize and bean, exposed to four simulated rainfall tests of on hour at controlled intensity […]

Rainfall simulator thrust type with hydraulically moved arms: fabrication and calibration

Ildegardis Bertol, Camilo Bertol, Fabrício Tondello Barbosa

01/Dec/2012

The use of rain simulators is fundamental to study rainfall erosion. They are used to monitor the experimental conditions, particularly the rain characteristics and to understand the soil erosion process better. Several types of rainfall simulators have been developed since 1930 around the world. Currently, the Swanson model is the most commonly used. However, a small number of these simulators is fully operational in Brazil, due to the high degree of wear and difficulties of maintenance. The purpose of this […]

1 2