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All publications of “Jucinei José Comin”

12 results

Nitrous Oxide Emissions in No-Tillage Onion ( Allium cepa L.) Crops Are Increased by Oilseed Radish Cover Crop and Poultry Manure Application

Vilmar Müller Júnior ORCID logo , Leoncio de Paula Koucher, Monique Souza, Andria Paula Lima, Claudinei Kurtz, Rafael da Rosa Couto, [...]


ABSTRACT The use of cover crops and poultry manure (PM) is an alternative to reduce the use of synthetic inputs and can contribute to the nutrient cycling in onions ( Allium cepa L.) grown under a no-tillage system. However, this management practice may contribute to an increase in N2O emissions to the atmosphere. The aims of this study were to evaluate the immediate effect on N2O emissions of adding PM onto cover crop residues and to verify the effect of […]

Nitrogen Transfer from Cover Crop Residues to Onion Grown under Minimum Tillage in Southern Brazil

Leoncio de Paula Koucher, Gustavo Brunetto, Vilmar Müller, Monique Souza, Andria Paula Lima, Sandro José Giacomini, [...]


ABSTRACT Nitrogen derived from cover crop residues may contribute to the nutrition of onion grown under minimum tillage (MT) and cultivated in rotation. The aim of this study was to evaluate the N transferred from different cover crop residues to the onion crop cultivated under MT in southern Brazil. In June 2014, oilseed radish, black oat, and oilseed radish + black oat residues labeled with 15N were deposited on the soil surface before transplanting onions. During the growth season and […]

Chemical Properties in Macroaggregates of a Humic Dystrudept Cultivated with Onion under No-Till and Conventional Tillage Systems

Luiz Henrique dos Santos, Ludiana Canton, Barbara Santos Ventura, Guilherme Wilbert Ferreira, Claudinei Kurtz, Gustavo Brunetto, [...]


ABSTRACT Nutrients present in soil aggregates are essential for maintaining the productive capacity of agroecosystems and environmental quality. The aim of this study was to evaluate the chemical properties of macroaggregates of a Humic Dystrudept cultivated with onions under a no-till vegetable system (NTVS) compared to the conventional tillage system (CTS) and a forest area in Ituporanga, SC, Brazil. The treatments consisted of the following single and mixed cover crops with onion under the NTVS: spontaneous vegetation, 100 % black […]

Release of Phosphorus Forms from Cover Crop Residues in Agroecological No-Till Onion Production

Rodolfo Assis de Oliveira, Jucinei José Comin, Tales Tiecher, Rogério Piccin, Luiza Michelon Somavilla, Arcângelo Loss, [...]


ABSTRACT Cover crops grown alone or in association can take up different amounts of phosphorus (P) from the soil and accumulate it in different P-forms in plant tissue. Cover crop residues with a higher content of readily decomposed forms may release P more quickly for the next onion crop. The aim of this study was to evaluate the release of P forms from residues of single and mixed cover crops in agroecological no-till onion (Allium cepa L.) production. The experiment […]

Cover Crops Effects on Soil Chemical Properties and Onion Yield

Rodolfo Assis de Oliveira, Gustavo Brunetto, Arcângelo Loss, Luciano Colpo Gatiboni, Claudinei Kürtz, Vilmar Müller, [...]


ABSTRACT Cover crops contribute to nutrient cycling and may improve soil chemical properties and, consequently, increase crop yield. The aim of this study was to evaluate cover crop residue decomposition and nutrient release, and the effects of these plants on soil chemical properties and on onion (Allium cepa L.) yield in a no-tillage system. The experiment was carried out in an Inceptisol in southern Brazil, where cover crops were sown in April 2012 and 2013. In July 2013, shoots of […]


Arcângelo Loss, Alex Basso, Bruno Salvador Oliveira, Leôncio de Paula Koucher, Rodolfo Assis de Oliveira, Claudinei Kurtz, [...]


As a result of soil management systems, like the conventional tillage system (CTS) versus the no-tillage system (NTS) for vegetable crops, modifications in soil properties occur, which change, for example, the rates of soil aggregation and the content of total organic carbon (TOC). The aim of this study was to quantify the TOC contents and evaluate the rates of soil aggregation and the distribution of aggregates by diameter classes in a soil planted to onion in NTS and CTS and […]

Physical attributes of a Haplic Cambisol in vineyards subjected to different traffic intensities

Cassio Marques de Valois, Jucinei José Comin, Milton da Veiga, Gustavo Brunetto, Jamil Abdalla Fayad, Fernando Cesar Bauer, [...]


Agricultural machine traffic causes soil compaction in vineyards, which may be accentuated between the rows due to greater intensity of traffic. The aim of this study was to evaluate the variability of soil physical properties as a function of the sampling position in relation to the plant row in commercial vineyards of the Bordô variety planted directly in the soil and subjected to different management practices. In February 2012, three vineyards were selected in the municipality of Major Gercino, southern […]

Accumulation of phosphorus fractions and contamination potential in vineyard soils in the southern region of the state of Santa Catarina, Brazil

Djalma Eugênio Schmitt, Jucinei José Comin, Carlos Alberto Ceretta, Luciano Colpo Gatiboni, Tales Tiecher, Felipe Lorensini, [...]


In vineyards, if phosphate is applied both before planting and at intervals during growth without consideration of technical criteria, the soil P fractions may be increased and their proportions altered. This study was carried out to evaluate the accumulation of P fractions and the parameters of the adsorption isotherm in a sandy Typic Hapludalf soil in vineyards with a history of successive and excessive phosphate fertilization. In December 2010, two vineyards were selected, one 4 and the other 15 years […]

Forms and accumulation of copper and zinc in a sandy typic hapludalf soil after long-term application of pig slurry and deep litter

Tadeu Luis Tiecher, Carlos Alberto Ceretta, Jucinei José Comin, Eduardo Girotto, Alcione Miotto, Marcel Pires de Moraes, [...]


Successive applications of pig slurry and pig deep litter may lead to an accumulation of copper (Cu) and zinc (Zn) fractions in the soil profile. The objective of this study was to evaluate the Cu and Zn forms and accumulation in a Sandy Typic Hapludalf soil after long-term application of pig slurry and deep litter. In March 2010, eight years after initiating an experiment in Braço do Norte, Santa Catarina (SC), Brazil, on a Sandy Typic Hapludalf soil, soil samples […]

Phosphorus fractions in sandy soils of vineyards in southern Brazil

Djalma Eugênio Schmitt, Jucinei José Comin, Luciano Colpo Gatiboni, Tales Tiecher, Felipe Lorensini, George Wellington Bastos de Melo, [...]


Phosphorus (P) applications to vineyards can cause P accumulation in the soil and maximize pollution risks. This study was carried out to quantify the accumulation of P fractions in sandy soils of vineyards in southern Brazil. Soil samples (layers 0-5, 6-10 and 11-20 cm) were collected from a native grassland area and two vineyards, after 14 years (vineyard 1) and 30 years (vineyard 2) of cultivation, in Santana do Livramento, southern Brazil, and subjected to chemical fractionation of P. Phosphorus […]

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