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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 |
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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 |
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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 |
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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 |
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