Consulta: creatorFacets:"Maltoni,Kátia Luciene"
Registros recuperados: 7
Data/hora: 10/06/2024 18:46:37

Organic Carbon and Physical Properties in Sandy Soil after Conversion from Degraded Pasture to Eucalyptus in the Brazilian Cerrado
Provedor de dados: 90
Autores: Sena,Karla Nascimento; Maltoni,Kátia Luciene; Faria,Glaucia Amorim; Cassiolato,Ana Maria Rodrigues.
ABSTRACT Soil is currently seen as the most relevant carbon sink and the most effective carbon stabilizer. In contrast, agriculture is the second largest C emitter, after burning of fossil fuels. This organic carbon (OC) introduced into the soil, mainly via organic matter (OM), is essential for several soil properties and plays an extremely important role in sandy soils. The objective of this study was to describe the changes in the amounts and pools of OC and the influence thereof on some physical soil properties in areas converted from pasture to eucalyptus. The following areas were analyzed: a degraded pasture (PAST), two areas of pasture-eucalyptus conversion after 2 and 15 years (EU02 and EU15, respectively) and a preserved Cerrado area (CER) in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aggregate stability; Carbon pool; Oxisols; Anthropogenic soils.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100518

Adubação química e orgânica na recuperação da fertilidade de subsolo degradado e na micorrização do Stryphnodendron polyphyllum
Provedor de dados: 90
Autores: Calgaro,Hemerson Fernandes; Valério Filho,Walter Veriano; Aquino,Sueli da Silva; Maltoni,Kátia Luciene; Cassiolato,Ana Maria Rodrigues.
Com a construção da usina hidrelétrica de Ilha Solteira no final da década de 1960, algumas áreas foram desmatadas, servindo como "área de empréstimo". Os solos dessas áreas foram retirados e estas adquiriram características físicas, químicas e biológicas distantes das ideais. Este trabalho objetivou avaliar os efeitos da aplicação da adubação química e orgânica na fertilidade do subsolo degradado e micorrização de Stryphnodendron polyphyllum (barbatimão). A área localiza-se na fazenda de Ensino, Pesquisa e Extensão (FEPE) da UNESP/Ilha Solteira, em Selvíria - MS. Com delineamento de blocos ao acaso, em parcelas de 250 m² (10 x 25 m), foram avaliados 10 tratamentos: testemunha; calagem; adubação N + P; calagem + N + P; N + P + aguapé; N + P + bagaço de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Área de empréstimo; Cerrado; Aguapé; Bagaço de cana-de-açúcar.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832008000300041

Experimental plot size of passion fruit
Provedor de dados: 94
Autores: Faria,Glaucia Amorim; Lopes,Beatriz Garcia; Peixoto,Ana Patrícia Bastos; Ferreira,Antonio Flávio Arruda; Maltoni,Kátia Luciene; Pigari,Lucas Bernardo.
Abstract  The determination of the plot size is a practical matter pertinent to the experimental planning, and its optimal characterization allows to obtain higher precision and better quality in the results. Therefore, in this study, the main goal was to determine the plot size in experiments of passion fruit in two uniformity tests with Passiflora setacea and Passiflora alata. The experiment was constituted of a substrate at planting with 3 thirds of soil and 1 of barnyard manure. The soil was fertilizer with 3 kg of simple superphosphate and 0.5 kg of KCl by 1m³. Each species of Passiflora was considered a uniformity test with 40 basic units (BU). The evaluations of the experiments were done on 60 days after the transplant, noticing the tree’s height,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experiental Planning; Experimental Precision; Passiflora setacea; Passiflora alata.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000100501

Addition of waste and introduction of microorganisms after 45 years of soil degradation
Provedor de dados: 124
Autores: Santos,Adriana Avelino; Agustini,José Antônio; Maltoni,Kátia Luciene; Cassiolato,Ana Maria Rodrigues.
ABSTRACT The construction of hydroelectric power plants (HPP) may result in environmental problems, such as extensive areas of exposed subsoil and conditions of extreme degradation. These areas require alternative that minimize impact and allow partial recovery of their ecosystem functions and vegetation. This study aimed to evaluate the effects of residue addition (organic/macrophytes - OR and inorganic/ash - AR), hydrogel, and inoculation of microorganisms in degraded soil, cultivated with Jatropha curcas, through fertility and microbial activity. A conserved Cerrado ("savannah") soil was the source of microorganisms - mainly mycorrhizal fungi. The experiment was conducted for 12 months (during 2010/2011) at the farm of UNESP-School of Engineering/Campus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas; Macrophytes; Sugar cane ash; Hydrogel; Cerrado; Microbial activity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300363

Recovery of soil microbiological properties in a degraded area planted with Corymbia citriodora and Leucaena leucocephala
Provedor de dados: 63
Autores: Valpassos,Maria Alexandra Reis; Maltoni,Kátia Luciene; Cassiolato,Ana Maria Rodrigues; Nahas,Ely.
The influence of reforestation was evaluated during two season periods (February and October) in sites planted with Corymbia citriodora and Leucaena_leucocephala through microorganism counts (bacteria, fungi, actinomycetes, and nitrite oxidizers) and microbial activity (respiratory and urease activities). An Atlantic forest and a bare soil site were used as controls. The general trends of the variables in the different soils were: Atlantic forest or L. leucocephala &gt; C. citriodora &gt; bare soil. The microbial populations in L. leucocephala and C. citriodora soils were significantly higher (P &lt; 0.05) than that found in the bare soil. Similar results were obtained for respiratory and urease activities. The microbiological variables of the soil under...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria; Fungi; Forest degradation; Respiratory activity; Urease.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000100010

Crescimento, fosfatase ácida e micorrização de espécies arbóreas, em solo de cerrado degradado
Provedor de dados: 53
Autores: Scabora,Márcia Helena; Maltoni,Kátia Luciene; Cassiolato,Ana Maria Rodrigues.
A ocupação do cerrado para aumentar a produção agrícola tem gerado a degradação do solo e uma prática recomendada na revegetação dessas áreas é a introdução de espécies arbóreas. O objetivo do trabalho foi avaliar o crescimento (altura e massa fresca e seca de parte aérea), a atividade da fosfatase ácida foliar e colonização micorrízica de mudas de espécies arbóreas não nativas em solo de cerrado degradado. O trabalho foi desenvolvido em casa de vegetação em Ilha Solteira, empregando solo proveniente de uma área de cerrado degradado em processo de regeneração natural, localizada no município de Três Lagoas (MS). O solo, misturado com areia de rio (4:1), foi fumigado com brometo de metila e distribuído em sacos plásticos (2,5 L). Para o tratamento com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fungos micorrízicos arbusculares; Revegetação; Dependência micorrízica.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000200024

Physiological response of marandu grass seeds exposed to NPK fertilizer
Provedor de dados: 65
Autores: Codognoto,Luciane da Cunha; Conde,Thassiane Telles; Maltoni,Kátia Luciene; Faria,Glaucia Amorim; Reis,André Rodrigues dos.
ABSTRACT:  To facilitate seeding process of forage species, a common practice is to mix seeds with fertilizers in monocropping and intercropping or in implementing integrated livestock production systems. However, in prolonged periods of contact, the fertilizer’s salinity and acidity negatively affect the seeds’ physiological quality. Therefore, this study intends to verify the effect of ten periods (0, 3, 6, 12, 24, 36, 48, 72, 96, and 120 hours) of exposure to granular NPK fertilizer 04-30-16 on the vigor and germination of Urochloa brizantha cv. Marandu seeds. The experiment was conducted in a completely randomized design with three replication. The fertilizer and seed mixture registered a negative effect on seed moisture content, electrical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria; Ionic effect; Germination; Osmotic effect; Salinity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600250