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108 results on '"Portela, Jeane Cruz"'

2. Vermicompost and millicompost as a resource in sustainable agriculture in semiarid: decomposition, nutrient release, and microstructure under the action of nitrogen and organic-mineral fertilizers

Author

de Lavôr, Wellyda Keorle Barros, da Silva, Eulene Francisco, de Almeida Ferreira, Eveline, Gondim, Joaquim Emanuel Fernandes, Portela, Jeane Cruz, de Sousa Antunes, Luiz Fernando, de Almeida Vasconcelos, Aline, de Freitas, Diana Ferreira, Mendonça, Vander, and Fernandes, Bruno Caio Chaves

Published
2024
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5. Flow rate changes of drippers with dilutions of treated water produced by oil exploration in the Brazilian semiarid region

Author

Vale, Hudson Salatiel Marques, de Oliveira Costa, Danniely, Batista, Rafael Oliveira, Filho, Luis Cesar de Aquino Lemos, Oliveira, Mychelle Karla Teixeira de, de Oliveira, Francisco de Assis, Gurgel, Marcelo Tavares, Pereira, Joaquim Odilon, Portela, Jeane Cruz, Diniz, Marineide Jussara, Marques, Blake Charles Diniz, de Carvalho, Francisca Evania, and de Souza, Ana Luiza Veras

Published
2021

6. Environmental, Agricultural, and Socioeconomic Impacts of Salinization to Family-Based Irrigated Agriculture in the Brazilian Semiarid Region

Author

da Silva Dias, Nildo, da Silva, Jucirema Ferreira, Moreno-Pizani, Maria Alejandra, Lima, Matheus Cardim Ferreira, da Silva Ferreira, Jorge Freire, Linhares, Edna Lúcia Rocha, de Sousa Neto, Osvaldo Nogueira, Portela, Jeane Cruz, da Silva, Marcia Regina Farias, Ferreira Neto, Miguel, dos Santos Fernandes, Cleyton, Taleisnik, Edith, editor, and Lavado, Raúl S., editor

Published
2021
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7. Ethnopedology in the Identification of Salinized Soils in the Baixo-Açu Irrigation District, Semi-Arid Region of Brazil

Author

Ferreira da Silva, Jucirema, primary, Portela, Jeane Cruz, additional, Gondim, Joaquim Emanuel Fernandes, additional, Bezerra de Melo, Stefeson, additional, Ferreira de Freitas, Diana, additional, de Medeiros, José Francismar, additional, Dias, Nildo da Silva, additional, Custódio Peixoto, Tayd Dayvison, additional, and da Silva Sá, Francisco Vanies, additional

Published
2024
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9. Soil Attributes and Their Interrelationships with Resistance to Root Penetration and Water Infiltration in Areas with Different Land Uses in the Apodi Plateau, Semiarid Region of Brazil

Author

Dias, Pollyana Mona Soares, primary, Portela, Jeane Cruz, additional, Gondim, Joaquim Emanuel Fernandes, additional, Batista, Rafael Oliveira, additional, Rossi, Leticia Sequinatto, additional, Medeiros, Jonatan Levi Ferreira, additional, Farias, Phâmella Kalliny Pereira, additional, Mota, Paulo Jardel, additional, Bandeira, Diego José da Costa, additional, Filho, Luís Cesar de Aquino Lemos, additional, de Matos, Geisiane Xavier, additional, Mesquita, Francisco de Oliveira, additional, de Oliveira, Felipe Ozias, additional, Araújo, Antonio Genilson Rodrigues, additional, and do Nascimento, Claudeone Manoel, additional

Published
2023
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10. Environmental, Agricultural, and Socioeconomic Impacts of Salinization to Family-Based Irrigated Agriculture in the Brazilian Semiarid Region

Author

da Silva Dias, Nildo, primary, da Silva, Jucirema Ferreira, additional, Moreno-Pizani, Maria Alejandra, additional, Lima, Matheus Cardim Ferreira, additional, da Silva Ferreira, Jorge Freire, additional, Linhares, Edna Lúcia Rocha, additional, de Sousa Neto, Osvaldo Nogueira, additional, Portela, Jeane Cruz, additional, da Silva, Marcia Regina Farias, additional, Ferreira Neto, Miguel, additional, and dos Santos Fernandes, Cleyton, additional

Published
2020
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11. Characterization and Classification of Soils in Agroecosystems in a Moist Enclave in Northeastern Brazil.

Author

Farias, Phâmella Kalliny Pereira, Portela, Jeane Cruz, Batista, Rafael Oliveira, da Costa, Joseane Dunga, Gondim, Joaquim Emanuel Fernandes, de Matos, Geisiane Xavier, Mota, Paulo Jardel, Silva, Eulene Francisco da, Oliveira, Francisco de Assis de, Pereira, Joaquim Odilon, Bandeira, Diego José da Costa, do Nascimento, Claudeone Manoel, de Souza, Rauny Oliveira, Dantas, Matias de Souza, Dantas Moniz, Tiago da Costa, and Araujo, Antonio Genilson Rodrigues

Subjects
SOIL classification, SOIL profiles, AGRICULTURAL ecology, FLUVISOLS, CAMBISOLS
Abstract

Modern times have required studies that take into account the main soil features, aligning the use of land with the protection of more sensitive environments. From this perspective, this study aimed to perform a morphological description and determine the physical and chemical attributes for soil classification in the community of Poção, located in the municipality of Martins/RN, by highlighting the more sensitive attributes in the differentiation of environments through multivariate analysis. Nine soil profiles were identified to perform the morphological description and collect samples for physical and chemical analyses. The study updates the soil classes found in the study area: Acrisols, Planosols, and Cambisols, with the relief being the main factor responsible for the difference between soil attributes. The influence of organic matter on the soil attributes highlights the importance of its maintenance. Aluminum and the clay fraction are responsible for the distinction of the Acrisol class, whereas silt, potassium sodium, total organic carbon, the electrical conductivity of the saturation extract, and the cation exchange capacity allow the differentiation of Fluvisols. [ABSTRACT FROM AUTHOR]

Published
2023
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13. Clay Fraction Mineralogy and Structural Soil Attributes of Two Soil Classes under the Semi-Arid Climate of Brazil

Author

Lopes, Thaís Cristina de Souza, primary, Portela, Jeane Cruz, additional, Batista, Rafael Oliveira, additional, Bandeira, Diego José da Costa, additional, Leite, Isaque de Oliveira, additional, Ramalho, Luirla Bento, additional, Gondim, Joaquim Emanuel Fernandes, additional, Costa, Joseane Dunga da, additional, Gurgel, Marcelo Tavares, additional, Souza, Carolina Malala Martins, additional, Silva, Eulene Francisco da, additional, Souza, Edivan Rodrigues de, additional, Oliveira, Fábio Henrique Tavares de, additional, Miranda, Neyton de Oliveira, additional, and Sá, Francisco Vanies da Silva, additional

Published
2022
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18. Densidade e resistência do solo à penetração de raízes em agroecossistemas no semiárido brasileiro

Author

Queiroz, Gabriela Carvalho Maia de, Silva, Francisco Wellington Andrade da, Portela, Jeane Cruz, Oliveira, Valéria Nayara Silva de, and Santos, Mikhael Varão dos

Subjects
Soil structure, Estrutura do solo, Management Caatinga, Manejo Agroecológico, Agroecological, Caatinga
Abstract

Inadequate soil management modifies its attributes, culminating in the loss of its product quality. Given the above, the objective of this study was to evaluate the attributes of a cambisol in Agroecosystems, in the Land of Hope Settlement project, in the municipality of Governador Dix-Sept Rosado, in Rio Grande do Norte, through the statistical technique Multivariate. Soil samples were collected with the deformed and undisturbed structure to perform physical and chemical analyses, and the collections were made in the layers of 0-5 and 5-10 cm, in three replications. The physical attributes evaluated were: granulometry, particle density and soil density, soil resistance to penetration carried out in a field with a penetrometer, and total soil porosity. The chemical attributes were: electrical conductivity, hydrogenionic potential in water, total organic carbon and macronutrients: calcium, magnesium, phosphorus, potassium and sodium, and subsequently the ability to exchange cations, a sum of bases and Base saturation, and the percentage of exchangeable sodium. The areas of native forest and agroecological area showed similarity among themselves, and the structural attributes soil resistance to penetration and bulk density and the chemical total organic carbon, sodium, potassium, percentage of exchangeable sodium and Electricalconductivity were the most sensitive in the distinction of the environments, in relation to the conventional planting area of intercropped crops, indicating that the soil use systems alter their attributes and that agroecological practices provide improvements and/or maintenance of these. O manejo inadequado do solo modifica seus atributos, culminando na perda de sua qualidade produtiva. Diante do exposto, o objetivo com o presente trabalho foi avaliar os atributos de um Cambissolo em agroecossistemas, no Projeto de Assentamento Terra de Esperança, município de Governador Dix-Sept Rosado, no Rio Grande do Norte, por meio da técnica de estatística multivariada. Realizou-se a coleta de amostras de solo com estrutura deformada e indeformada, para realização de análises físicas e químicas, sendo as coletas feitas nas camadas de 0-5 e 5-10 cm, em três repetições. Os atributos físicos avaliados foram: granulometria, densidade de partículas e densidade do solo, resistência do solo à penetração realizada a campo com penetrômetro, e porosidade total do solo. Os atributos químicos foram: condutividade elétrica, potencial hidrogeniônico em água, carbono orgânico total e macronutrientes: cálcio, magnésio, fósforo, potássio e o sódio, sendo posteriormente calculada a capacidade de troca de cátions, soma de bases e saturação por bases, e a percentagem de sódio trocável. As áreas de mata nativa e área agroecológica apresentaram similaridade entre si, sendo que os atributos estruturais resistência do solo à penetração e densidade do solo e os químicos carbono orgânico total, sódio, potássio, percentagem de sódio trocável e condutividade elétrica foram os mais sensíveis na distinção dos ambientes, em relação á área de plantio convencional de cultivos consorciados, indicando que os sistemas de usos do solo alteram seus atributos e que práticas agroecológicas propiciam melhorias e/ou manutenção destes.

Published
2019

19. Physical Indicators of Cambisols Under Agricultural Uses in Chapada do Apodi, Semiarid Region of Brazil

Author

Costa, Joseane Dunga da, primary, Portela, Jeane Cruz, additional, Farias, Phâmella Kalliny Pereira, additional, Medeiros, José Francismar de, additional, Dias, Pollyana Mona Soares, additional, Melo, Stefeson Bezerra de, additional, Batista, Rafael Oliveira, additional, Gondim, Joaquim Emanuel Fernandes, additional, and Ribeiro, Matheus Alves, additional

Published
2020
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22. Nutrient losses due to water erosion using simulated rainfall in southern Brazil

Author

Portela, Jeane Cruz, Cogo, Neroli Pedro, Filho, Jacques Carvalho Ribeiro, Sequinatto, Letícia, Batista, Rafael Oliveira, Souza, Carolina Malala Martins, and Gondim, Joaquim Emanuel Fernandes

Subjects
ground cover, cobertura del suelo, escorrentía, erosive process, cultural sequences, runoff, proceso erosivo, secuencias culturales
Abstract

Erosion is the main form of degradation in the world, consequently of loss of soil, water and nutrients, provoking direct and indirect damages. The objective of this work is to quantify N, P and K losses by water erosion under simulated rainfall conditions by the application of six erosion tests in continuous cultivation of seasonal cycle species, including isolated and intercropped crops. The study was carried out in the field at the Experimental Station of Agronomy in Eldorado do Sul (RS), Brazil, in a typical Dystrophic Red Argisol. For the analysis of nutrient loss, six erosion tests with simulated rainfall were applied to the treatments between the end of October and mid-December, using the rain simulator with swivel arms of Swanson. The losses of N and P were influenced by surface conditions, with the partial removal of crop residues and the non-mobilization of the soil. The exception was K, due to its high solubility in the soil with a low colloidal activity, which was easily lost in the soil water surface runoff, regardless of total soil surface coverage by crop residues. Resumen La erosión es la principal forma de degradación en el mundo, en consecuencia de la pérdida de suelo, agua y nutrientes, provocando daños directos e indirectos. El objetivo de este trabajo es cuantificar las pérdidas de N, P y K por erosión hídrica en condiciones de lluvia simulada mediante la aplicación de seis pruebas de erosión en cultivo continuo de especies de ciclo estacional, incluyendo cultivos aislados y cultivos intercalados. El estudio se llevó a cabo en el campo en la Estación Experimental de Agronomía en Eldorado do Sul (RS), Brasil, en un Argisol Rojo Distrófico típico. Para el análisis de la pérdida de nutrientes, se aplicaron seis ensayos de erosión con lluvia simulada a los tratamientos entre finales de octubre y mediados de diciembre, utilizando el simulador de lluvia con brazos giratorios de Swanson. Las pérdidas de N y P se vieron influenciadas por las condiciones de la superficie, con la eliminación parcial de los residuos del cultivo y la no movilización del suelo. La excepción fue K, debido a su alta solubilidad en el suelo con baja actividad coloidal, que se perdió fácilmente en la escorrentía superficial del agua del suelo, independientemente de la cobertura total de la superficie del suelo por los residuos de los cultivos.

Published
2018

48. Soil Water Retention in the Semiarid Region of Brazil

Author

Silva, Antonio Carlos da, primary, Portela, Jeane Cruz, additional, Batista, Rafael Oliveira, additional, Cunha, Rutilene Rodrigues da, additional, Gondim, Joaquim Emanuel Fernandes, additional, Arruda, Luiz Eduardo Vieira de, additional, and Medeiros, José Francismar de, additional

Published
2018
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