Consulta: creatorFacets:"Artur,Adriana Guirado"
Registros recuperados: 5
Data/hora: 02/06/2024 05:03:24

Esterco bovino e calagem para formação de mudas de guanandi
Provedor de dados: 86
Autores: Artur,Adriana Guirado; Cruz,Mara Cristina Pessôa da; Ferreira,Manoel Evaristo; Barretto,Vitor Corrêa de Mattos; Yagi,Renato.
O objetivo deste trabalho foi avaliar, em casa de vegetação, os efeitos de doses de esterco bovino e de calcário na formação de mudas de guanandi (Calophyllum brasiliense Cambèss.). Foram avaliadas quatro doses de cada fator, combinadas em esquema fatorial 4x4. O delineamento experimental foi inteiramente ao acaso com quatro repetições, e cada parcela continha cinco mudas. O substrato foi formado pela mistura, em volume, de oito partes de subsolo e duas partes de areia, e doses de esterco correspondentes a 0, 2, 4 e 6 partes que, em massa, equivalem a 0, 101, 175 e 229 kg m-3. As doses de calcário foram calculadas para elevar a saturação por bases (V%) a 20, 35, 50 e 65%. Aos 120 dias, foram avaliados: altura, diâmetro do colo, número de folhas, área...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calophyllum brasiliense; Adubação orgânica; Substrato.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000600011

Root system characteristics of Marandu palisadegrass supplied with nitrogen and magnesium rates
Provedor de dados: 96
Autores: Garcez,Tiago Barreto; Megda,Marcio Mahmoud; Artur,Adriana Guirado; Monteiro,Francisco Antonio.
The development of root system of forage grasses is influenced by the supply of mineral nutrients. The experiment was carried out in a greenhouse in Piracicaba, São Paulo State, with the objective of evaluating the effect of nitrogen and magnesium rates on dry mass yield, total length and surface, specific length and surface, and concentrations of nitrogen, magnesium, calcium and potassium in the root system of Brachiaria brizantha Stapf. cv. Marandu. It was studied five rates of nitrogen (2, 9, 16, 23 and 30 mmol L-1) and five rates of magnesium (0.05, 0.70, 1.35, 2.00 and 2.65 mmol L-1) in nutrient solutions in an incomplete 5² factorial arrangement, which resulted in the following combinations: 2/0.05; 2/1.35; 2/2.65; 9/0.70; 9/2.00; 16/0.05; 16/1.35;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria brizantha; Nutrient; Nutrient solution; Root; Root length; Root surface.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700005

Changes in attributes of soils subjected to fallow in desertification hotspot
Provedor de dados: 124
Autores: Ferreira,Mirele Paula da Silva; Artur,Adriana Guirado; Queiroz,Hermano Melo; Romero,Ricardo Espíndola; Costa,Mirian Cristina Gomes.
ABSTRACT  Soils in semi-arid regions have been degraded by overgrazing, which reduces the production capacity and, in certain situations, leads to desertification. An alternative to recover degraded areas is the fallow period, which works through the resilience of the soil itself, increasing the supply of organic matter and improving soil physical properties. Thus, the objective of this study was to test the hypothesis that 14-year grazing exclusion improves soil physical and chemical attributes in degraded areas under desertification. The study was conducted in Irauçuba, Ceará State, Brazil. The experimental design was completely randomized, in a 4 x 2 factorial scheme corresponding to four areas and two managements (overgrazing and fallow), with four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil organic carbon; Soil degradation; Semi-arid region; Overgrazing.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000100022

Water use efficiency of marandu palisadegrass as affected by nitrogen and sulphur rates
Provedor de dados: 124
Autores: Artur,Adriana Guirado; Garcez,Tiago Barreto; Monteiro,Francisco Antonio.
This study aimed to evaluate the effects of combination of nitrogen and sulphur fertilizations on water consumption and water use efficiency by marandu palisadegrass (Brachiaria brizantha cv. Marandu). The experiment was carried out in a greenhouse, using a Typic Quartzipsamment. Five nitrogen rates (0; 100; 200; 300 and 400 mg dm-3) were combined with five sulphur rates (0; 10; 20; 30 and 40 mg dm-3) in a fractionated 5² factorial, with four replications. The leaf area was harvested three times at intervals of approximately 30 days. Soil moisture was maintained at 70% of capacity retention through a self-irrigating system. There was an increase in consumption and water use efficiency by the forage grass due to the supply of nitrogen and sulphur. Nitrogen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marandu palisadegrass; Plants and water; Plants-nitrogen effect; Plants-sulphur effects.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100002

Foliar fertilization on the production of grafted dwarf cashew seedlings
Provedor de dados: 64
Autores: Santos,Ricardo Miranda dos; Serrano,Luiz Augusto Lopes; Taniguchi,Carlos Alberto Kenji; Artur,Adriana Guirado; Natale,William; Corrêa,Márcio Cleber de Medeiros.
ABSTRACT Foliar fertilization is an important agricultural technique that has stood out for its ease of use and can contribute to the production of high-quality and -vigor cashew seedlings. The objective of this study was to evaluate the effect of foliar fertilizer rates and time of application on ‘BRS 226’ dwarf cashew seedlings after grafting. The experiment was carried out in a completely randomized design, with five treatments and 24 replicates. Each experimental unit consisted of one plant. The commercial product (NPK 20-20-20) was used at the recommended rate for fruit crops in general, 2.5 g L-1. Foliar fertilizer applications at 45 and 60 days after grafting (DAG), with 50% of the recommended rate (1.25 g L-1), or at 80 DAG, with 100% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anacardium occidentale; Total dry matter; Seedling quality; Nutrient contents.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100249