Search Results - "Alvarez V., Víctor Hugo"

Interpretation of soil phosphorus availability by Mehlich-3 in soils with contrasting phosphorus buffering capacity by Josimar Vieira dos Reis, Víctor Hugo V. Alvarez, Renan Dinardi Durigan, Rodrigo Bazzarella Paulucio, Reinaldo Bertola Cantarutti

“…ABSTRACT Increasingly rational use of phosphate fertilizers by agriculture is important, especially in Brazil, due to its importance for global food security…”
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New methods for estimating lime requirement to attain desirable pH values in Brazilian soils by Welldy Gonçalves Teixeira, V. Víctor Hugo Alvarez, Júlio César Lima Neves

“…ABSTRACT In Brazil, empirical models are traditionally used to determine lime requirement (LR), but their reliability is doubtful in most cases, since they can…”
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Evaluation of traditional methods for estimating lime requirement in Brazilian soils by Welldy Gonçalves Teixeira, Víctor Hugo Alvarez V., Júlio César Lima Neves, Rodrigo Bazzarella Paulucio

“…ABSTRACT The optimal soil pH for most annual crops in Brazil varies between 5.7 and 6.0. Numerous methods have been developed for estimating lime requirement…”
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Phosphorus-Zinc Interaction and Iron and Manganese Uptake in the Growth and Nutrition of Phalaenopsis (Orchidaceae) by Novais, Sarah Vieira, Novais, Roberto Ferreira, V., Víctor Hugo Alvarez, Villani, Ecila Mercês de Albuquerque, Zenero, Mariana Delgado Oliveira

“…Visual symptoms of Zn deficiency, induced by excessive P applications, have been observed in commercial orchid nurseries. The supply of other metallic…”
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Modeling in the Adjustment of Fertilization Recommendation through Leaf Analysis in Fertigated ‘Prata’ Banana by José Aridiano Lima de Deus, Júlio César Lima Neves, Ismail Soares, Víctor Hugo Alvarez V., Fabricio Martinazzo Regis de Albuquerque, Lauana Lopes dos Santos, William Natale

“…In banana cultivation, fertilization recommendations are almost exclusively based on soil chemical analysis, without considering leaf analysis and expected…”
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Solubilization of a K-silicate rock by Acidithiobacillus thiooxidans by Matias, Patrícia Cardoso, Mattiello, Edson Marcio, Santos, Wedisson Oliveira, Badel, Jorge Luis, Alvarez V., Víctor Hugo

“…•We evaluated the solubilization of verdete rock mediated by Acidithiobacillus thiooxidans.•Content of released elements were highly correlated with acidity…”
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Orchid growth and nutrition in response to mineral and organic fertilizers by Rodrigues, Donizetti Tomaz(Federal University of Viçosa Soil Department), Novais, Roberto Ferreira(Federal University of Viçosa Soil Department), Alvarez V., Víctor Hugo(Federal University of Viçosa Soil Department), Dias, José Maria Moreira(Federal University of Viçosa Plant Science Department), Villani, Ecila Mercês de Albuquerque(Federal University of Viçosa Soil Department)

“…Orchid fertilization is fundamental for a satisfactory plant growth and development for commercial orchid production as well as in collections. Mineral and/or…”
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Relationship between Coffee Leaf Analysis and Soil Chemical Analysis by Jailson Silva Sousa, Júlio César Lima Neves, Herminia Emilia Prieto Martinez, Víctor Hugo V. Alvarez

“…Research focused on adequate nutrition of plants is essential in modern coffee production to increase yield and develop more efficient management strategies…”
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Sensitivity of Soil P Availability Tests to Ca-P in Oxisols by Valadares, Samuel Vasconcelos, Alvarez V., Víctor Hugo, Santos, Wedisson Oliveira, Paes, Jefferson Luiz de Aguiar, Lins, Caio Buainain, Novais, Roberto Ferreira

“…We assessed the sensitivity of mixed exchange resin (MER) and Mehlich-3 (M3) to calcium-bound phosphate (Ca-P) in Oxisols. These methods were compared with…”
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Accumulation of Macronutrients for the Conilon Coffee Tree by Bragança, Scheilla Marina, Prieto Martinez, Hermínia Emília, Leite, Helio Garcia, Santos, Lucio Pereira, Sediyama, Carlos Sigueyuki, Alvarez V., Víctor Hugo, Lani, José Antônio

“…Besides its importance in Brazil, little information exists about the mineral nutrition of the Conilon coffee-tree. As a mean of characterizing its…”
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Nutrient supply by mass flow and diffusion to maize plants in response to soil aggregate size and water potential by Oliveira, Ermelinda Maria Mota, Ruiz, Hugo Alberto(UFV Departamento de Solos), Alvarez V, Víctor Hugo(UFV Departamento de Solos), Ferreira, Paulo Afonso(UFV Departamento de Engenharia Agrícola), Costa, Fernanda Oliveira(UFV Programa de Pós-graduação em Solos e Nutrição de Plantas), Almeida, Ivan Carlos Carreiro(UFV Programa de Pós-graduação em Solos e Nutrição de Plantas)

“…Nutrients are basically transported to the roots by mass flow and diffusion. The aim of this study was to quantify the contribution of these two mechanisms to…”
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Bioavailability of soil Cu, Fe, Mn and Zn from soil fractions by Fontes, Renildes Lucio Ferreira, Ferreira, Gilvan Barbosa, Alvarez V., Victor Hugo, Neves, Júlio Cesar Lima, Faria, Arlindo Ferreira, Fontes, Maurício Paulo Ferreira

“…Cationic micronutrients bioavailability depends on the chemical characteristics of soil fractions. Fourteen soils received individual doses of five…”
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Yield gains of coffee plants from phosphorus fertilization may not be generalized for high density planting by Valadares, Samuel Vasconcelos, Neves, Júlio César Lima, Novais, Roberto Ferreira, Rosa, Gustavo Nogueira Guedes Pereira, Martinez, Hermínia Emília Prieto, Alvarez V., Víctor Hugo

“…Inconclusive responses of the adult coffee plant to phosphorus fertilization have been reported in the literature, especially when dealing with application of…”
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Brazilian soil science: from its inception to the future, and beyond by Camargo, Flavio A. de Oliveira(Federal University of Rio Grande do Sul Department of Soil Science), Alvarez V., Víctor Hugo(Federal University of Viçosa Department of Soil Science), Baveye, Philippe C.(University of Abertay Dundee)

“…The present essay is meant to provide some background on the evolution of the soil science community in Brazil, since its inception, to describe its current…”
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Effects of nickel and nitrogen soil fertilization on lettuce growth and urease activity by Oliveira, Thomas Carlos, Fontes, Renildes Lúcio Ferreira, Rezende, Sebastião Tavares de, Víctor Hugo, Alvarez V.

“…Nickel is a micronutrient involved in nitrogen metabolism and a constituent of the urease molecule. Plant growth and urease activity were evaluated in lettuce…”
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Disponibilidade de zinco para mudas de eucalipto em solos de Cerrado by Fernando Antonio Vieira Rodrigues, Nairam Félix de Barros, Júlio César Lima Neves, Víctor Hugo Alvarez V, Roberto Ferreira Novais

“…No Brasil, com a expansão da silvicultura clonal, o plantio de materiais genéticos mais produtivos e exigentes nutricionalmente tem aumentado o aparecimento de…”
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Nutritional diagnosis for eucalypt by DRIS, M-DRIS, and CND by Silva, G.G.C. da, Neves, J.C.L, Alvarez, V.V.H, Leite, F.P

“…The evaluation of the nutritional status in eucalypt (Eucalyptus grandis W. Hill ex Maid.) forests through vegetal tissue analyses what reflects water and…”
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Silicon sources for studies of rice plants in nutrient solutions by Zanão Júnior, Luiz Antônio, Alvarez V., Victor Hugo, Ferreira Fontes, Renildes Lúcio, Pereira Carvalho-Zanão, Maristela, Pereira, Natalia

“…The objective of this work was to evaluate the effects of various Si sources currently used in studies of Si doses in nutrient solutions on dry matter yield…”
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Concentrações e composições químicas do meio nutritivo para o cultivo in vitro de orquídea by Rodrigues, Donizetti Tomaz, Novais, Roberto Ferreira, V., Víctor Hugo Alvarez, Dias, José Maria Moreira, Villani, Ecila Mercês de Albuquerque

“…Plântulas de orquídeas cultivadas in vitro respondem de forma distinta aos vários meios de cultura empregados nessa técnica. Este trabalho comparou o meio…”
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Quantification of permanent and variable charges in reference soils of the State of Pernambuco, Brazil by Cunha, Jailson Cavalcante, Ruiz, Hugo Alberto, Freire, Maria Betânia Galvão dos Santos, Alvarez V., Víctor Hugo, Fernandes, Raphael Bragança Alves

“…The electrical charges in soil particles are divided into structural or permanent charges and variable charges. Permanent charges develop on the soil particle…”
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