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Maria Betânia Galvão dos Santos Freire
Universidade Federal Rural de Pernambuco
83Publications
12H-index
425Citations
Publications 83
Newest
#1Thiago Rodrigo Schossler (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 1
#2Bruno Campos Mantovanelli (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 1
Last.Maria Betânia Galvão dos Santos Freire (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 12
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Sugarcane productivity is highly variable across space, and knowledge about the spatial distribution of soil physical attributes is important to guide management practices and evaluate the effects of agricultural operations on productivity. Thus, the objective of this study was to determine the best sampling density to represent the physical attributes of an Ultisol Typic Hapludult, to determine the spatial variability of these physical attributes, and to correlate them with sugarcane productivi...
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#1Larissa de Sá Gomes Leal (UFRPE: Universidade Federal Rural de Pernambuco)
#2Luiz Guilherme Medeiros Pessoa (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 4
Last.Eduardo Soares de Souza (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 8
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AbstractThe reclamation of salt-affected soils is considered a slow process that urges the development of faster recovery strategies as a priority. The present article aimed at investigating the ef...
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#2Fernando José Freire (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 15
Last.Monalisa Barbosa da Costa Santos (UFPE: Federal University of Pernambuco)H-Index: 1
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Molybdenum (Mo) can stimulate nitrogenase activity (NTA), increase biological nitrogen (N) fixation (BNF) and reduce natural-abundance N isotopes (δ15N). Our hypothesis is that this stimulus depends on genotype and N availability for sugarcane. The objective of this study was to evaluate the effect of the Mo fertilization on BNF, NTA, δ15N and the accumulation of N in different genotypes (RB867515 and RB92579) of sugarcane fertilized with N. The cultivars were subjected to two rates of N fertili...
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The properties of halomorphic soils are controlled by the presence of either soluble salts, exchangeable sodium or both, and it is important to know and understand these properties in order to reforest and/or recover the soils. The objective of this study was to characterize and classify halomorphic soils from the semiarid region of Northeast Brazil. Four profiles of halomorphic soils were studied, which were described morphologically and the samples were collected from all soil horizons. Physic...
1 CitationsSource
#1Ágatha Maria de Oliveira Silva (UFRPE: Universidade Federal Rural de Pernambuco)
#2Fernando José Freire (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 15
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#2Fernando José Freire (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 15
Last.Patrícia da Costa Bezerra (UFRPE: Universidade Federal Rural de Pernambuco)
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#2Maria Betânia Galvão dos Santos Freire (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 12
Last.Luiz Guilherme Medeiros Pessoa (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 4
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ABSTRACTThis study aimed to evaluate the use of phytoremediation and soil conditioners in the recovery of physical attributes of a saline-sodic Fluvic Neossol in Brazil Northeast. The applied treatments were: Atriplex nummularia L., as phytoremediation plant, due to its ability to extract salts from the soil; organic conditioners, such as bovine and sheep manure; gypsum and polymer, as chemical conditioners. Samples with preserved structure were collected at the time of the experiment installati...
2 CitationsSource
Studies of nutrient efficiency and compartmentalization of nutrients in dry forests can contribute to the understanding of the nutrition of these forests because significant nutrient depositions come from leaf and branch fractions and are mostly derived from leguminous species, emphasizing the importance of nitrogen in cycling of these environments. This work aimed to determine the compartmentalization and efficiency biological of nitrogen utilization of the forest species with the highest impor...
#1Roseane Karla Soares da Silva (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 3
#2Ana Lícia Patriota Feliciano (UFRPE: Universidade Federal Rural de Pernambuco)H-Index: 9
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The knowledge of the nutritional aspects of native species, mainly in natural regeneration, may be important for understanding their establishment, particularly in areas with low nutrient availability soils, such as tropical soils. This study aimed to determine the biological utilization efficiency (BUE) of the nutrients N, P, K, Ca, and Mg of forest species of natural regeneration in a Lowlands Dense Ombrophilous forest fragment in Pernambuco, Brazil. A phytosociological study of the fragment w...
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