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| Deus,José Aridiano Lima de; Soares,Ismail; Neves,Júlio César Lima; Medeiros,José Francismar de; Miranda,Fábio Rodrigues de. |
| Melon is one of the most demanding cucurbits regarding fertilization, requiring knowledge of soils, crop nutritional requirements, time of application, and nutrient use efficiency for proper fertilization. Developing support systems for decision-making for fertilization that considers these variables in nutrient requirement and supply is necessary. The objective of this study was parameterization of a fertilizer recommendation system for melon (Ferticalc-melon) based on nutritional balance. To estimate fertilizer recommendation, the system considers the requirement subsystem (REQ), which includes the demand for nutrients by the plant, and the supply subsystem (SUP), which corresponds to the supply of nutrients through the soil and irrigation water. After... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo L; Nutrient demand; Nutrient supply; Modeling. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000200498 |
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| Almeida,Edmilson Igor Bernardo; Deus,José Aridiano Lima de; Corrêa,Márcio Cleber de Medeiros; Crisostomo,Lindbergue Araujo; Neves,Júlio César Lima. |
| RESUMO Com o presente trabalho objetivou-se avaliar, através dos métodos linha de fronteira e chance matemática, o estado nutricional de pitaias submetidas a combinações de doses crescentes de nitrogênio-potássio (N-K) e fósforo-zinco (P-Zn). Foram aplicadas cinco doses de N (0; 150; 300; 450 e 600 mg dm-3) e K (0; 75; 150; 225 e 300 mg dm-3) no experimento I, e cinco doses de P (0; 75; 150; 255 e 300 mg dm-3) e Zn (0; 2; 4; 6 e 8 mg dm-3) no experimento II. Ambos os experimentos foram arranjados em esquema fatorial 5 x 5, com quatro blocos ao acaso. Houve bastante similaridade entre as faixas de suficiência obtidas pela chance matemática e linha de fronteira, exceto para o fósforo. As faixas de suficiência obtidas pela linha de fronteira foram mais amplas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hylocereus undatus; Faixa de suficiência; Frutíferas exóticas; Interação entre nutrientes. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400744 |
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| Deus,José Aridiano Lima de; Neves,Júlio César Lima; Soares,Ismail; Alvarez V.,Víctor Hugo; Albuquerque,Fabricio Martinazzo Regis de; Santos,Lauana Lopes dos; Natale,William. |
| ABSTRACT: In banana cultivation, fertilization recommendations are almost exclusively based on soil chemical analysis, without considering leaf analysis and expected yield, which can help in the adjustment of fertilization programs. The aim of this study was to develop a method to recommend macronutrient fertilization rates which integrates data on leaf analysis, soil chemical analysis, and yield. Yield, soil chemical analysis, and leaf analysis data of fertigated plantations of ‘Prata’ banana were obtained for the first and second halves of the years from 2010 to 2015. Yield was correlated with soil organic matter (SOM) and soil contents of macronutrients (P, K, Ca, and Mg) to obtain the critical level (CLNui). Then, leaf nutrient contents were plotted on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Nutrient; Critical level; Boundary line; Yield. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100532 |
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| Deus,José Aridiano Lima de; Neves,Júlio César Lima; Lima Neto,Antonio João de; Natale,William; Alvarez V,Víctor Hugo; Albuquerque,Fabricio Martinazzo Regis de. |
| Abstract Adequate nutritional management of any plant species requires quantifying the nutrients accumulated in the plant and knowing their allocation in the different organs. The objective of this study was to evaluate the partitioning, accumulation, export of macronutrients and the nutritional efficiency of fertigated Prata banana plants. A historical survey of annual fruit productivity was conducted in 66 plots of Prata banana, selecting four that met the annual productivity classes (< 30.0; 30.0 = 37.5; 37.5 = 45.0 and > 45.0 t ha-1). The dry matter weights of the different organs of parent plant and follower, as well as the respective contents of macronutrients, were used to estimate the accumulation, partitioning, export, sequence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Redistribution efficiency of utilization. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000403002 |
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| Barreto,José Hildernando Bezerra; Soares,Ismail; Pereira,José Almeida; Bezerra,Antonio Marcos Esmeraldo; Deus,José Aridiano Lima de. |
| Nitrogen is the most important nutrient for rice (Oryza sativa L) yields. This study aimed to evaluate the response of upland rice cultivars to N rate and application times in a randomized block design, in subdivided plots with four replications. The studied factors were five rice cultivars (BRS MG Curinga, BRS Monarca, BRS Pepita, BRS Primavera, and BRS Sertaneja), three application times (100 % at planting, 50 % at planting - 50 % at tillering and 100 % at tillering) and four N rates (0, 50, 100, and 150 kg ha-1). All cultivars responded to increased rates and different times of N application, especially BRS Primavera and BRS Sertaneja, which were the most productive when 50 % N rates were applied at sowing and 50 % at tillering. The response of cultivar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L; Nitrogen fertilization; Production components. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000200017 |
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