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All publications of “Luciano Colpo Gatiboni”

29 results

Phosphorus Fractions in Soil with Organic and Mineral Fertilization in Integrated Crop-Livestock System

Amanda Zolet Rigo, Juliano Corulli Corrêa ORCID logo , Álvaro Luiz Mafra, Paulo Hentz, Marco André Grohskopf, Luciano Colpo Gatiboni, [...]

06/Feb/2019

ABSTRACT Use of organic fertilizers in integrated crop-livestock (iCL) systems may affect soil phosphorus fractions. This study aimed to determine phosphorus fractions in the soil under the iCL system after six years of application of organic or mineral fertilizers. The experiment was conducted on a Rhodic Kandiudox (Nitossolo Vermelho Distroférrico) in a randomized block design, using a 5 × 3 + 1 factorial scheme, with four replicates. The treatments consisted of three organic fertilizers (poultry litter, pig slurry, and compost) […]

Chemical, Biological, and Biochemical Parameters of the Soil P Cycle After Long-Term Pig Slurry Application in No-Tillage System

Tales Tiecher, Tadeu Luis Tiecher, Fábio Joel Kochem Mallmann, Mohsin Zafar, Carlos Alberto Ceretta, Cledimar Rogério Lourenzi, [...]

30/Oct/2017

ABSTRACT In Southern Brazil, agricultural soils are often treated over long periods with annual pig slurry (PS) applications, and their influence on soil nutrient dynamics should be monitored. This study aimed to evaluate the P forms accumulated in the soil and some biological and biochemical parameters of the P cycle after 19 successive PS applications over eight years, in a no-tillage (NT) system. Pig slurry was applied at rates of 0, 20, 40, and 80 m3 ha-1 per crop. Several […]

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, [...]

06/Jun/2016

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 […]

EFFECTIVENESS OF CHEMICAL METHODS IN PREDICTING PHOSPHORUS AVAILABILITY TO FLOOD IRRIGATED RICE IN SOILS OF SANTA CATARINA STATE, BRAZIL

Marcia Aparecida Simonete, Paulo Roberto Ernani, Letícia Moro, Claudia Fernanda Almeida Teixeira-Gandra, Luciano Colpo Gatiboni

01/Jul/2015

The soils used to grow irrigated rice in the State of Santa Catarina have different mineralogical and chemical characteristics from the soils used for calibration studies of the Mehlich-1 extractant, for estimating soil phosphorus availability to plants. Thus, the aim of this study was to evaluate the effectiveness of Mehlich-1, Mehlich-3, Resin, Olsen and EDTA extractants in predicting P availability to flood irrigated rice in soils of State of Santa Catarina. The experiment was carried out in a greenhouse in […]

SOIL PHOSPHORUS THRESHOLDS IN EVALUATING RISK OF ENVIRONMENTAL TRANSFER TO SURFACE WATERS IN SANTA CATARINA, BRAZIL

Luciano Colpo Gatiboni, Thomas Jot Smyth, Djalma Eugenio Schmitt, Paulo Cezar Cassol, Clovisson Menotti Boeira de Oliveira

01/Jul/2015

The State of Santa Catarina, Brazil, has agricultural and livestock activities, such as pig farming, that are responsible for adding large amounts of phosphorus (P) to soils. However, a method is required to evaluate the environmental risk of these high soil P levels. One possible method for evaluating the environmental risk of P fertilization, whether organic or mineral, is to establish threshold levels of soil available P, measured by Mehlich-1 extractions, below which there is not a high risk of […]

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 […]

Chemical changes and evaluation of available P near the granules of triple superphosphate and diammonium phosphate in acid soils

Jaqueline Pereira Machado de Oliveira, Paulo Roberto Ernani, Luciano Colpo Gatiboni, Angélica Pegoraro

01/Oct/2014

Phosphorus has low mobility in the soil. Thus, its concentration near the granules of phosphate fertilizers in the soil is very high, which may affect P availability and the soil chemical composition in these regions. This study was carried out to evaluate the soil chemical composition near the granules of calcium or ammonium phosphates and P mobility in two Brazilian acid soils. The experiment was carried out in 2009 and treatments consisted of a combination of triple superphosphate (TSP) or […]

Response of one-, five-, and nine-year-old pinus taeda to NPK fertilization in southern Brazil

Letícia Moro, Luciano Colpo Gatiboni, Marcia Aparecida Simonete, Paulo Cezar Cassol, Djalma Miler Chaves

01/Aug/2014

In the southern highland (Planalto Sul) region of Santa Catarina, Brazil, most of the pine forests were planted without soil fertilization. Currently, many areas are in the second or third rotation, and their productivity may be limited by low soil fertility. An alternative to mitigate this problem would be fertilization in the established forest. This study was carried out with the objective of evaluating the effect of fertilization with N, P, and K at different growth stages of Pinus taeda. […]

Forms of soil phosphorus in natural pastures subjected to additions of phosphates

Leandro Bittencourt de Oliveira, Tales Tiecher, Fernando Luiz Ferreira de Quadros, José Pedro Pereira Trindade, Luciano Colpo Gatiboni, Gustavo Brunetto, [...]

01/Jun/2014

Most natural pastures in the Campos biome in Southern Brazil grow in soils with low phosphorus (P) availability, but with high contents of total and organic P. The present study aimed to evaluate the changes in forms of soil P resulting from the application of phosphate sources over a growth cycle of natural pastures. In three experiments under natural pasture, P was applied in the form of Gafsa rock phosphate, triple superphosphate, and a control treatment in a randomized block […]

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 […]

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