Lucas Benedet
@agroteste.com
Agroteste Pesquisa e Desenvolvimento
He has a degree in Agronomy from the Federal University of Santa Catarina (UFSC) (2006-2012), a master's degree in the Postgraduate Program in Agroecosystems at UFSC (2012-2014) and a PhD in Agroecosystems from UFSC (2014-2018), working mainly with soil management, conservation and fertility and contamination by trace elements. He was a member of the Núcleo de Ensino, Pesquisa e Extensão em Agroecologia at UFSC (NEPEA). Post-Doctorate in the Postgraduate Program in Soil Science (PPGCS) at the Federal University of Lavras (UFLA), working in the area of pedology and evaluating the use of proximal sensors for the characterization and prediction of soil attributes. He currently works at Agroteste Pesquisa e Desenvolvimento as a researcher in the area of fertilizers, inoculants and biostimulants, with an emphasis on soil fertility and plant nutrition.
EDUCATION
Agronomist Engineer - Fedeal University of Santa Catarina.
Master in Agroecosystems - Fedeal University of Santa Catarina.
PhD in Agroecosystems - Fedeal University of Santa Catarina.
Post-doctorate in the Soil Science Program - Federal University of Lavras
RESEARCH, TEACHING, or OTHER INTERESTS
Soil Science, Agricultural and Biological Sciences
Scopus Publications
Scopus Publications
Renata Andrade, Sérgio Henrique Godinho Silva, Lucas Benedet, Marcelo Mancini, Geraldo Jânio Lima, Kauan Nascimento, Francisco Hélcio Canuto Amaral, Douglas Ramos Guelfi Silva, Marta Vasconcelos Ottoni, Marco Aurélio Carbone Carneiro,et al.
Elsevier BV
Lucas Benedet, Sérgio Henrique Godinho Silva, Marcelo Mancini, Renata Andrade, Francisco Hélcio Canuto Amaral, Geraldo Jânio Lima, Marco Aurélio Carbone Carneiro, and Nilton Curi
Elsevier BV
Renata Andrade, Sérgio Henrique Godinho Silva, Lucas Benedet, Elias Frank de Araújo, Marco Aurélio Carbone Carneiro, and Nilton Curi
MDPI AG
Several materials have been characterized using proximal sensors, but still incipient efforts have been driven to plant tissues. Eucalyptus spp. cultivation in Brazil covers approximately 7.47 million hectares, requiring faster methods to assess plant nutritional status. This study applies portable X-ray fluorescence (pXRF) spectrometry to (i) distinguish Eucalyptus clones using pre-processed pXRF data; and (ii) predict the contents of eleven nutrients in the leaves of Eucalyptus (B, Ca, Cu, Fe, K, Mg, Mn, N, P, S, and Zn) aiming to accelerate the diagnosis of nutrient deficiency. Nine hundred and twenty samples of Eucalyptus leaves were collected, oven-dried, ground, and analyzed using acid-digestion (conventional method) and using pXRF. Six machine learning algorithms were trained with 70% of pXRF data to model conventional results and the remaining 30% were used to validate the models using root mean square error (RMSE) and coefficient of determination (R2). The principal component analysis clearly distinguished developmental stages based on pXRF data. Nine nutrients were accurately predicted, including N (not detected using pXRF spectrometry). Results for B and Mg were less satisfactory. This method can substantially accelerate decision-making and reduce costs for Eucalyptus foliar analysis, constituting an ecofriendly approach which should be tested for other crops.
Ana Paula Valadares da Silva, Aline Oliveira Silva, Francielle Roberta Dias de Lima, Lucas Benedet, Aline de Jesus Franco, Josimara Karina de Souza, Alexandre Carvalho Ribeiro Júnior, Éder Rodrigues Batista, Alberto Vasconcellos Inda, Nilton Curi,et al.
Elsevier BV
Lucas Benedet, Sérgio Henrique Godinho Silva, Marcelo Mancini, Anita Fernanda dos Santos Teixeira, Alberto Vasconcellos Inda, José A.M. Demattê, and Nilton Curi
Journal of South American Earth Sciences Elsevier BV
Guilherme Wilbert Ferreira, Lucas Benedet, T. Trapp, A. P. Lima, V. M. Junior, A. Loss, C. R. Lourenzi and J. J. Comin
Purpose The objective was to evaluate the effects of mineral fertilizers and swine manure fertilization on soil aggregation indexes and on chemical and physical attributes of aggregates in Typic Hapludult managed under minimum tillage system. Method Experiment was implemented in 2013, in southern Brazil. The treatments were control, mineral fertilization (MF), swine manure compost + MF (SMC+MF); pig slurry + MF (PS+MF); PS to supply N for maize and black oat (PS100). In May 2015 and 2016, undisturbed soil samples were collected to obtain soil aggregates. Aggregates stability was evaluated through the mean weight diameter (MWD) and mean geometric diameter (MGD) indexes and aggregate distribution by diameter classes. In macroaggregates, total organic carbon (TOC), total nitrogen (TN), clay flocculation degree (CF%) and ∆pH were evaluated. Results The use of swine manure, associated or not to MF, increases TOC and TN contents in soil aggregates in 67.02 and 125.87%, respectively, for SMC+MF treatment. However, it was not efficient in improving soil physical attributes, reducing soil aggregation indexes, mainly in the 5-10 cm layer, by the decreased values of MWD and MGD. This result corroborates with the increase in microaggregates in all treatments. This was a result of the negative ∆pH values and the increased CF%. Conclusion Despite the increase in organic matter contents observed in this study, this was not enough to guarantee an improvement in soil physical attributes over 4 years. These results show that management must be supported by several conservationist techniques in order to have soil quality.
Lucas Benedet, Salvador F. Acuña-Guzman, Wilson Missina Faria, Sérgio Henrique Godinho Silva, Marcelo Mancini, Anita Fernanda dos Santos Teixeira, Luiza Maria Pereira Pierangeli, Fausto Weimar Acerbi Júnior, Lucas Rezende Gomide, Alceu Linares Pádua Júnior,et al.
Elsevier BV
LUCAS BENEDET, MATHEUS S. NILSSON, SÉRGIO HENRIQUE G. SILVA, MARCELO H.P. PELEGRINO, MARCELO MANCINI, MICHELE D. DE MENEZES, LUIZ ROBERTO G. GUILHERME, and NILTON CURI
FapUNIFESP (SciELO)
Portable X-ray fluorescence (pXRF) spectrometry offers valuable information for prediction models of soil fertility attributes spatial variation, although this approach is yet scarce in tropical regions. This study aims to predict and build spatial variability maps of soil pH, remaining phosphorus (P-Rem), soil organic matter (SOM) and sum of bases (SB) using pXRF results through stepwise multiple linear regression (SMLR) and Random Forest (RF) in a highly variable tropical area. Composite samples from soil A horizon were collected at 90 points throughout the campus of the Federal University of Lavras, Minas Gerais, Brazil, for pH, P-Rem, SOM, SB and pXRF analyses. RF predictions showed the highest accuracies, especially for P-Rem and SB (R² values of 0.66 and 0.55, respectively). Attributes that showed higher R² in punctual predictions also exhibited higher R² in spatial predictions. Data obtained from pXRF in tandem with RF can be used to assist prediction models for soil fertility attributes, consequently enabling the digital mapping of such attributes and helping to improve the knowledge about the spatial variability of such attributes in soils of tropical climate. This technique can therefore assist in the identification and orientation of adequate management practices in tropical agricultural practices.
Lucas Benedet, Wilson Missina Faria, Sérgio Henrique Godinho Silva, Marcelo Mancini, José Alexandre Melo Demattê, Luiz Roberto Guimarães Guilherme, and Nilton Curi
Geoderma Elsevier BV
Lucas Benedet, Deborah Pinheiro Dick, Gustavo Brunetto, Elano dos Santos Júnior, Guilherme Wilbert Ferreira, Cledimar Rogério Lourenzi, and Jucinei José Comin
Springer Science and Business Media LLC
Lucas Benedet, Wilson Missina Faria, Sérgio Henrique Godinho Silva, Marcelo Mancini, Luiz Roberto Guimarães Guilherme, José Alexandre Melo Demattê, and Nilton Curi
Elsevier BV
Lucas Benedet, Lessandro De Conti, Cleiton Junior Ribeiro Lazzari, Vilmar Müller Júnior, Deborah Pinheiro Dick, Cledimar Rogério Lourenzi, Paulo Emílio Lovato, Jucinei José Comin, Tadeu Luis Tiecher, Felipe Klein Ricachenevsky,et al.
Springer Science and Business Media LLC
Gustavo Brunetto, Lucas Benedet, Vítor Gabriel Ambrosini, Jucinei Jose Comin, George Wellington Bastos de Melo, Matheus Ademir dos Santos, Cledimar Rogério Lourenzi, Arcangelo Loss, Paulo Belli Filho, Djalma Eugênio Schmitt,et al.
FapUNIFESP (SciELO)
The present study aimed to evaluate the accumulation and distribution of Cu and Zn fractions in the profile of an Inceptisol by application of fungicides with a previous history of apple cultivation in southern Brazil. Stratified soil samples (0.0 ? 0.025 m, 0.025 ?0.050 m, 0.05 ? 0.10 m, 0.10 ? 0.15 m, 0.15 ? 0.20 m and 0.20 ? 0.40 m depth) were collected in two apple orchards (8 years old and 18 years old), and in a native pasture area adjacent to the orchards. The soil was subjected to analysis of physical and chemical properties and to chemical fractionation of Cu and Zn. The fractions of soluble, exchangeable, organic, residual and total Cu and Zn accumulated in the topsoil (0.0 ? 0.025 m) of the orchards, being higher in the orchard cultivated for 18 years. Most Cu, especially in the topsoil of the 18 years old orchard, accumulated in the less stable organic fraction, which can potentiate toxicity to plants and transfer Cu e Zn to ground water. In deeper layers, Cu was also distributed in the residual and mineral fractions, which are more stable. Most Zn in the soil of the apple orchards was distributed in the mineral and residual fractions, which have low mobility and low potential toxicity to plants. Key words: Malus domestica, trace elements, toxicity, environmental contamination.
Arcângelo Loss, Cledimar Rogério Lourenzi, Elano dos Santos, Carlos Aristeu Mergen, Lucas Benedet, Marcos Gervasio Pereira, Marisa de Cássia Piccolo, Gustavo Brunetto, Paulo Emílo Lovato, and Jucinei José Comin
Elsevier BV
Lucas Benedet, Jucinei José Comin, Rosete Pescador, Paulo Armando Victoria de Oliveira, Paulo Belli Filho, Lessandro De Conti, Rafael da Rosa Couto, Paulo Emílio Lovato, Stefano Cesco, Tanja Mimmo,et al.
Springer Science and Business Media LLC
Rafael da Rosa Couto, Lucas Benedet, Jucinei José Comin, Paulo Belli Filho, Sérgio Roberto Martins, Luciano Colpo Gatiboni, Marilice Radetski, Cassio Marques de Valois, Vítor Gabriel Ambrosini, and Gustavo Brunetto
Springer Science and Business Media LLC
Jucinei José Comin, Arcângelo Loss, Milton da Veiga, Renato Guardini, Djalma Eugênio Schmitt, Paulo Armando Victoria de Oliveira, Paulo Belli Filho, Rafael da Rosa Couto, Lucas Benedet, Vilmar Müller Júnior,et al.
CSIRO Publishing
Applications of swine residues to the soil surface in a no-tillage system (NTS) may increase the organic carbon level and improve the physical properties of the soil. This study aimed to evaluate the effect of the continuous application of pig slurry (PS) and pig litter (PL) on the total organic carbon (TOC) content and physical properties of soil under NTS in Southern Brazil. In March 2010, after 8 years of cultivation of black oats (Avena strigosa)–maize (Zea mays), soil samples were collected in the 0–5, 5–10, 10–15, and 15–20 cm layers. The treatments consisted of a control plot (without manure application), plots with PS applications equivalent to one and two times the recommended rate of nitrogen (N) for maize and black oats (PS1X and PS2X, respectively), and plots with PL equivalent to one and two times the recommended rate of N for maize and black oats (PL1X and PL2X, respectively). The TOC, soil bulk density (BD), penetration resistance (PR), total porosity (TP), macro- and microporosity, distribution of pore diameters, and indices of aggregation and aggregate stability were evaluated. Differences were found between treatments for TOC, BD, macro- and microporosity, pore diameter, aggregation, and PR. Treatment with PL favoured the production of aggregates (diameter >4 mm) and increased the rates of aggregation and aggregate stability in the 10–15 and 15–20 cm layers and macroporosity in the 0–5 and 15–20 cm layers. Application of PL2X reduced PR by 34% and 20%, respectively, in the 5–10 and 10–15 cm layers. Eight years of adding PS to successive cultivations of black oats–maize soil managed under NTS produced no changes in the physical features or the TOC of the soil, whereas the application of PL produced improvements in physical attributes of the soil and increased soil TOC.
Rafael da Rosa Couto, Jucinei José Comin, Cláudio Roberto Fonsêca Sousa Soares, Paulo Belli Filho, Lucas Benedet, Marcel Pires de Moraes, Gustavo Brunetto, and Caetano Luiz Beber
FapUNIFESP (SciELO)
The objective of this work was to evaluate the microbiological and chemical attributes of a soil with a seven‑year history of urea and swine manure application. In the period from October 2008 to October 2009, soil samples were collected in the 0-10 cm layer and were subjected to the treatments: control, without application of urea or manure; and with the application of urea, pig slurry, and deep pig litter in two doses, in order to supply one or two times the recommended N doses for the maize (Zea mays)/black oat (Avena strigosa) crop succession. The carbon of the microbial biomass (MB‑C) and the basal respiration (C‑CO2) were analyzed, and the metabolic (qCO2) and microbial quotient (qmic) were calculated with the obtained data. Organic matter, pH in water, available P and K, and exchangeable Ca and Mg were also determined. The application of twice the dose of deep pig litter increases the MB‑C and C‑CO2 values. The qmic and qCO2 are little affected by the application of swine manure. The application of twice the dose of deep pig litter increases the values of pH in water and the contents of available P and of exchangeable Ca and Mg in the soil.
Tadeu Luis Tiecher, Carlos Alberto Ceretta, Jucinei José Comin, Eduardo Girotto, Alcione Miotto, Marcel Pires de Moraes, Lucas Benedet, Paulo Ademar Avelar Ferreira, Cledimar Rogério Lorenzi, Rafael da Rosa Couto,et al.
FapUNIFESP (SciELO)
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 were collected from the 0-2.5, 2.5-5.0, 5-10 and 10-15 cm layers in treatments consisting of no manure application (control) and with applications of pig slurry and deep litter at two levels: the single and double rate of N requirement for maize and black oat succession. The soil was dried, ground in an agate mortar and analyzed for Cu and Zn contents by 0.01 mol L-1 EDTA and chemically fractionated to determine Cu and Zn. The applications of Pig deep litter and slurry at doses equivalent to 90 kg ha-1 N increased the contents of available Cu and Zn in the surface soil layer, if the double of this dose was applied in pig deep litter or double this dose in pig slurry, Cu and Zn migrated to a depth of 15 cm. Copper is accumulated mainly in the organic and residual fractions, and zinc preferentially in the fraction linked to clay minerals, especially in the surface soil layers.