Search Results - "Uchôa, Sandra Catia Pereira"

CHARACTERIZATION OF SUBSTRATES AND THEIR INFLUENCE ON GERMINATION AND GROWTH OF ASPARAGUS SEEDLINGS by Do Nascimento Tavares, Ingridy, Arcanjo Alves, José Maria, Pereira Uchôa, Sandra Catia, Canche Iuit, Carlos Enrique, Alves Guedes, Yenara, Oliveira Silva, Deyse Cristina

“…The survival and performance of vegetables in the field production cycle depend on the seedling quality and, in turn, the substrate. Asparagus is not part of…”
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Available sulphur by different extractants in soils of the state of Ceará, Brazil by Uchôa, Sandra Catia Pereira, Hernández, Fernando Felipe Ferreyra, Melo, Valdinar Ferreira, Silva, Deyse Cristina Oliveira da, Silva, Armando José da, Carvalho, Laís de Brito

“…ABSTRACT Despite the relevance of sulphur (S) to plant development, studies in Brazil on its availability in the soil are restricted to a few crops and…”
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Effect of Harvest Time and Nitrogen Doses on Cassava Root Yield and Quality by Oliveira, Natália Trajano de, Uchôa, Sandra Catia Pereira, Alves, José Maria Arcanjo, Albuquerque, José de Anchieta Alves de, Rodrigues, Guilherme Silva

“…ABSTRACT Nitrogen is considered the most limiting nutrient for cassava, and N availability can influence the crop cycle, including earlier harvest. The aim of…”
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Characterization of Organic Matter under Different Pedoenvironments in the Viruá National Park, in Northern Amazon by Vale Júnior, José Frutuoso do, Nicodem, Steven, Melo, Valdinar Ferreira, Uchôa, Sandra Catia Pereira, Cruz, Diego Lima de Sousa

“…ABSTRACT Soil organic matter (SOM) fractions result from a variety of environmental processes, which affect incorporation and production rates, decomposition,…”
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Absorption of macronutrients by cassava in different harvest dates and dosages of nitrogen by Santos, Nádia Souza dos, Alves, José Maria Arcanjo, Uchôa, Sandra Catia Pereira, Oliveira, Natália Trajano de, Albuquerque, José de Anchieta Alves de

“…A field experiment was carried out in 2010-2011 crop years in the experimental area of the Centro de Ciências Agrárias of the Universidade Federal de Roraima,…”
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Cover crops on soil quality and yield of cowpea under no-tillage in the Amazon savanna by Rocha, Paulo Roberto Ribeiro, Maia, Sonicley da Silva, Melo, Valdinar Ferreira, Uchôa, Sandra Cátia Pereira, Batista, Karine Dias, Cavalcante, Luiza Amorim

“…Conservation practices such as no-tillage are necessary to maintain, and/or improve agricultural soil quality. However, straw formation and maintenance in…”
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Effect of biofertilization with cattle urine on the chemical properties of an Oxisol from the Amazon savanna by Silva, Deyse Cristina Oliveira da, Nascimento, Eduardo Nunes, Silva, Ayrton Oliveira da, Uchôa, Sandra Catia Pereira, Barreto, Glauber Ferreira

“…ABSTRACT Soil correctives and mineral fertilizers are important for a sustainable production; however, they are ineffective in the long run, showing the need…”
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IMPACT OF FOREST CONVERSION TO PASTURE ON SOIL ENZYMATIC ACTIVITY IN THE NORTHERN AMAZON by Uchôa, Sandra Cátia Pereira, Pereira, Lucas Feitosa, Matos, Carlos Henrique Lima de, Tavares, Ingridy do Nascimento, Alves, José Maria Arcanjo, Vale Júnior, José Frutuoso do

“…The conversion of forests to pastures in the Amazon results in deforestation and the loss of environmental services. This practice affects biogeochemical…”
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Phosphorus extractants for soils in the humid tropical region of Brazil by Matos, Carlos Henrique Lima de, Melo, Valdinar Ferreira, Uchôa, Sandra Cátia Pereira, Pereira, Raimundo de Almeida, Nascimento, Pedro Paulo Ramos Ribeiro

“…ABSTRACT Given the heterogeneity of soils in Roraima state, Brazil, and the need for a phosphorus (P) extraction protocol, this study aimed to assess the…”
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Byrsonima crassifolia seedlings growth on ground basalt rock by Ferreira Melo, Valdinar, Welter, Marina Keiko, Alves Chagas, Edvan, Pereira Uchôa, Sandra Cátia, Da Silva Siqueira, Raphael Henrique

“…Ground basalt rock may represent a labile reservoir of nutrients, providing a low-cost, nutrient-rich substrate for seedling formation and plant growth. The…”
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Damage levels of sunburn in pineapple fruits submitted to natural and artificial protection by Dos Santos, Nádia Souza, Arcanjo Alves, José Maria, Pereira Uchôa, Sandra Catia, Oliveira da Silva, Deyse Cristina, Barreto, Glauber Ferreira, Oliveira da Silva, Thais Cristina, Evangelista dos Anjos, Arthur José

“…Pineapple sunburn (SB) occurs mostly in regions with a high incidence of sunlight and temperature, causing damage to the fruits and financial losses for the…”
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Cultivation of cassava and cowpea in intercropping systems held in Roraima’s savannah, Brazil by Albuquerque, José de Anchieta Alves de, Oliva, Larissa Souza de Campos, Alves, José Maria Arcanjo, Uchôa, Sandra Catia Pereira, Melo, Djair Alves de

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Cultivation of cassava and cowpea in intercropping systems held in Roraima’s savannah, Brazil1 by Albuquerque, José de Anchieta Alves de, Oliva, Larissa Souza de Campos, Alves, José Maria Arcanjo, Uchôa, Sandra Catia Pereira, Melo, Djair Alves de

“…The objective of this work was to assess the cultivation of cassava and cowpea in different systems and arrangements of plants in Roraima’s savannah, Brazil…”
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Stabilized urea for maize grown on an Amazonian Cerrado soil by Castro, Thaís Santiago, Rocha, Paulo Roberto Ribeiro, Barreto, Glauber Ferreira, Maia, Sonicley da Silva, Uchôa, Sandra Cátia Pereira, Melo, Valdinar Ferreira, Batista, Karine Dias

“…Urea splitting and the use of stabilized ureas in corn (Zea mays L.) crops are management strategies that increase urea efficiency and reduce nitrogen (N)…”
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Adubação foliar na suplementação nutricional de cultivares de abacaxizeiro micropropagadas by Oliveira da Silva, Deyse Cristina, Pereira Uchôa, Sandra Catia, Arcanjo Alves, José Maria, Torres de Souza, Leandro, Nascimento da Silva, Cineone, Ferreira Barreto, Glauber, Brito Carvalho, Laís de, Evangelista dos Anjos, Arthur José

“…RESUMO Embora já se disponha de cultivares de abacaxizeiro resistentes à fusariose, a produção brasileira é baseada na cultivar Pérola, susceptível à…”
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A new frontier of archaeological dark earth at the northern Amazonia headwaters of Roraima state: Soil attributes and landscape interplays by Silva e Silva, Antônio da, Melo, Valdinar Ferreira, Augusti, Mauricio Lorenzoni, Schaefer, Carlos Ernesto G. Reynauld, Francelino, Marcio Rocha, Uchôa, Sandra Cátia Pereira, Lima, Hedinaldo Narciso, Souza, Fernando Gomes de, Sabóia, Vitor Hugo Carvalho, Santos, Luís Antônio Coutrim dos

“…Despite the existence of various studies on Archaeological Dark Earth - ADE, there is still a very large gap concerning the Amazon region, with many areas…”
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Sulfur doses and pH on the dynamics of S in the soil labile reserve by Moreira, Heloisa Kelly Santos, Pereira Uchôa, Sandra Cátia, Alvarez Venegas, Victor Hugo, De Lima Matos, Carlos Henrique, Ferreira Melo, Valdinar, Alves, José Maria Arcanjo, José Silva, Armando

“…The study of sulfur (S) forms in the soil is relevant, and its availability depends on pH. The aim was to investigate how pH affects the balance between labile…”
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Physiological quality in maize seeds using conventional methods and NIR spectroscopy by Molina Alvarez, Richard Alcides, Catia Pereira Uchoa, Sandra, Castanheira Guimarães, Gabriel, Augusto Schurt, Daniel, Da Silva Maia, Sonicley, Vieria de Sousa, Natalia, Beatríz Quevedo Andino, Hilda

“…Maize is one of the most important cereals, and stands out for its wide genetic diversity, adaptation to the most diverse climate conditions, and being, both…”
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Nutritional composition and antioxidant compounds of coconut candy with added açaí pulp by Miranda Affonso, Sergio Matheus, Dos Santos, Daniela Cavalcante, Neves, Leandro Camargo, De Oliveira, Daniel Magalhães, Uchoa, Sandra Catia Pereira, Cardoso, Alice Victória Silva, De Sousa, Lailson Oliveira

“…The açaí (Euterpe oleracea Mart.) is an Amazonian fruit that is widely consumed in Brazil and around the world, particularly due to its large number of…”
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Phosphorus adsorption in soils under forest and savanna from Northern Amazon, Brazil by Matos, Carlos Henrique de Lima, Melo, Valdinar Ferreira, Uchôa, Sandra Cátia Pereira, Nascimento, Pedro Paulo Ramos Ribeiro, Pereira, Raimundo Almeida

“…Studies on maximum phosphorus adsorption capacity (MPAC) in soils from Roraima State and attributes that interfere with the magnitude of this characteristic…”
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