Consulta: creatorFacets:"Oliveira,Paulo Sérgio Rabello de"
Registros recuperados: 11
Data/hora: 16/06/2024 08:58:22

Effect of boron and zinc fertilization on white oats grown in soil with average content of these nutrients
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Castagnara,Deise Dalazen; Krutzmann,Alexandre; Zoz,Tiago; Steiner,Fábio; Conte e Castro,Ana Maria; Neres,Marcela Abbado; Oliveira,Paulo Sérgio Rabello de.
The objective of this study was to evaluate the effect of fertilization with zinc or boron on the growth and dry matter production, nutritional value and accumulation of nutrients in white oats. The study comprised two experiments conducted in glasshouses, the first consisting of the application of four doses of zinc (0, 0.2, 0.4 and 0.6 mg/dm³) in the form of zinc sulphate (20% Zn), and the second consisting of the application of four doses of boron (0, 0.2, 0.4 and 0.6 mg/dm³) in the form of Borax (11% B). The experimental design in each case was a randomized block design, with five replicates. Fertilization with zinc and boron increased the growth of white oats, but had no significant effect on the nutritional value of the forage. Higher levels of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena sativa; Crude protein; Dry matter.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700007

IPR 126 white oat forage potential under free growth, cutting and grazing at two management heights
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Neres,Marcela Abbado; Castagnara,Deise Dalazen; Oliveira,Paulo Sérgio Rabello de; Oliveira,Elir de; Jobim,Clóves Cabreira; Tres,Tamara Taís; Mesquita,Eduardo Eustáquio.
The experiment was carried out to evaluate the structural characteristics, biomass accumulation, chemical composition and in vitro digestibility of dry matter and crude protein of white oat (Avena sativa L. IPR 126) under different management systems. Grazing, cut at two heights (15 and 20 cm) and free growth were all evaluated in three periods (July, August and September) with a 28-day average interval between evaluations. In the free growth system, samples at 15 and 20 cm were also taken at the intervals chosen for cutting and grazing. The experimental design was in randomized blocks with three replications, arranged in a 3 × 2 factorial split plot design over time; systems of management and heights were the factors of plots, and time was taken as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apical meristem; Avena sativa; In vitro dry matter digestibility; White oat nutritional quality.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400009

Use of conditioning in the production of black and white oat hay using two cutting heights
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Castagnara,Deise Dalazen; Neres,Marcela Abbado; Oliveira,Paulo Sérgio Rabello de; Meinerz,Cristiane Claudia; Mesquita,Eduardo Eustáquio.
The study was conducted to estimate the dehydration curves, chemical composition, and occurrence of fungi in white oat hay (Avena sativa L. cv. Guapa BRS) and black oat hay (Avena strigosa Schreb cv. Common) at two cutting heights. Dehydration curves were studied under a randomized block design with a 2 × 2 factorial arrangement using split plots in time, considering two types of oats (white and black), two cutting heights (10 and 20 cm), and 17 sampling times (0, 4, 19, 24, 28, 43, 47, 52, 67, 71, 76, 91, 95, 100, 115, 129, and 124 hours after harvesting) with five replicates. For the chemical composition and occurrence of fungi, the experimental design comprised randomized blocks in a factorial 2 × 2 split-plot in time with two types of oats, two cutting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avena spp; Crude protein; Dehydration curves; Storage fungi; Straw.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500002

Production of alfalfa hay under different drying methods
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Neres,Marcela Abbado; Castagnara,Deise Dalazen; Mesquita,Eduardo Eustáquio; Zambom,Maximilliane Alavarze; Souza,Leiliane Cristine de; Oliveira,Paulo Sérgio Rabello de; Jobim,Clóves Cabreira.
This trial aimed at determining the dehydration curve at nine times (0, 3, 6, 9, 24, 27, 30, 33 and 46 hours after cuting of the plants); the leaf/stem ratio and number of leaves per stem in alfalfa submitted to four managements during the drying process. It was also evaluated the bromatologic composition and in vitro digestibility of the dry matter and cell wall of alfalfa hay before storage. The drying methods applied for alfalfa were the following: drying in the field until 50% DM and drying conclusion in an airy shed; drying in the field without turning; drying with only one turning and drying with two turnings. The experimental design was completely randomized with four drying methods and five replications. Leaf dehydration was faster when compared to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drying in field; Haymaking; In vitro digestibility.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000800008

Dehydration curve, fungi and mycotoxins in Tifton 85 hay dehydrated in the field and in shed
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Taffarel,Loreno Egidio; Mesquita,Eduardo Eustáquio; Castagnara,Deise Dalazen; Costa,Patrícia Barcellos; Neres,Marcela Abbado; Horn,Marcelina Bottoni; Oliveira,Paulo Sérgio Rabello de; Meinerz,Cristiane Claudia.
The objective of this study was to estimate the dehydration curve and occurrence of fungi and mycotoxins in Tifton 85 hay. The experimental design was randomized blocks in split plots with four replications and five levels of nitrogen (0, 25, 50, 75 and 100 kg ha-1) in the form of urea, two regrowth ages (28 and 35 days) and drying hay in the sun and in shed. After harvesting, the grass was sampled four times (0, 8, 23 and 32 hours) to dry in the sun and twelve times (0, 3, 18, 27, 42, 51, 66, 75, 90, 99, 114 and 123 hours) for drying in shed, turned over daily. The fungi were identified after seeding and growth in three steps of haymaking (cutting, baling and after 30 days of storage). To verify the presence of mycotoxins, 20 samples, composed of hay...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contaminants; Dry matter; Forage conservation; Microorganisms; Toxins.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600003

Use of a conditioning unit at the haymaking of Tifton 85 overseeded with Avena sativa or Lolium multiflorum
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Castagnara,Deise Dalazen; Neres,Marcela Abbado; Oliveira,Paulo Sérgio Rabello de; Jobim,Cloves Cabreira; Três,Tamara Taís; Mesquita,Eduardo Eustáquio; Zambom,Maximilliane Alavarze.
White oat and ryegrass were overseeded on Tifton 85 pastures for evaluation of dry matter yield (DMY), leaf:stem ratio (L:S), dehydration curves and nutritional value of forages. Dry matter intake and L:S ratio were analyzed using a completely randomized blocks design with five forage growth conditions (single Tifton 85 and intercropped with white oat or ryegrass, and white oat or ryegrass intercropped with Tifton 85), whereas for drying curves, ten dehydration times were tested (0, 4, 8, 24, 28, 32, 48, 52, 56 and 71 hours after harvest) by a 5 × 10 split-plot arrangement (growth conditions of forages as main plot and dehydration times as sub-plots). The nutritive value data were analyzed in a 3 × 3 split-plot trial with single Tifton 85, Tifton 85 - Oat...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cynodon; Haymaking; In vitro dry matter digestibility; Oat; Ryegrass.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600006

Use of conditioners in the production of Tifton 85 grass hay
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Castagnara,Deise Dalazen; Ames,João Paulo; Neres,Marcela Abbado; Oliveira,Paulo Sérgio Rabello de; Silva,Francieli Batista; Mesquita,Eduardo Eustáquio; Stangarlin,José Renato; Franzener,Gilmar.
The objectives of this study were to estimate the curve of dehydration, bromatological composition and occurrence of fungi in Tifton 85 grass, submitted to four methods of dehydration. The curves of dehydration were studied in a completely randomized design with a 4 × 11 factorial scheme with four drying systems (1 conditioning + 1 turn-over; 2 conditionings + 1 turn-over; no conditioning + 1 turn-over and no conditioning + 2 turn-overs) and 11 sampling times (0, 3, 15, 18, 21, 24, 39, 42, 45 and 47 hours after the cutting), with six replicates. For the bromatological composition and fungi occurrence, the experimental design was completely randomized in a 4 × 3 factorial scheme with the four drying methods of Tifton 85 grass and three periods of evaluation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Crude protein; Dehydration; Storage fungus.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001000003

Establishment of intercropping of beet and chicory depending on soil management
Provedor de dados: Revista Ciência Agronômica (RCA)
Autores: Coutinho,Pablo Wenderson Ribeiro; Oliveira,Paulo Sérgio Rabello de; Echer,Márcia de Moraes; Cadorin,Danielle Acco; Vanelli,Jaqueline.
ABSTRACT This study aimed to evaluate the productivity and quality characteristics of beet and chicory based on management of straw and intercropping period of establishment. The experiment was conducted in the organic horticulture sector of Unioeste, in a design of randomized blocks with four replications, where the treatments were arranged in 2 x 5 and 2 x 8 factorial schemes. The first factorial consisted of the straw mulch management (with and without incorporation of the gray velvet bean straw) and the intercropping period of establishments and beet and chicory monocrops (0; 7; 14 and 21 days after transplanting beet). The second factorial was composed of the straw mulch management (with and without incorporation) and the cultivation of chicory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beta vulgaris; Cichorium endívi; Vegetal cover; Yield; Post-harvest.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400674

Soybean productivity under different grazing heights of Brachiaria ruziziensis in an integrated crop-livestock system
Provedor de dados: Revista Ciência Agronômica (RCA)
Autores: Ferreira,Gilberto Alves; Oliveira,Paulo Sérgio Rabello de; Alves,Sérgio José; Costa,Antonio Carlos Torres da.
ABSTRACTThe aim was to evaluate the effects of grazing height of Brachiaria ruziziensis on the production of straw, and the establishment and grain yield of a soybean crop, under an integrated crop-livestock system, on a typic dystrophic Red Latosol at the Experimental Farm of the Agronomic Institute of Paraná (IAPAR), in Xambrê, in the state of Paraná, Brazil (PR). The study was carried out between September of 2010 and April of 2012. The experimental design was of randomised blocks, in lots split over time, with five treatments and three replications. The following were determined for the Brachiaria ruziziensis: shoot dry matter weight, plant residue dry matter weight, and total dry matter weight (Brachiaria ruziziensis shoot weight + plant residue...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Establishment; Straw; No tillage; C/N ratio.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000400755

Características produtivas, estruturais e bromatológicas dos capins Tifton 85 e Piatã e do feijão-guandu cv. Super N, em cultivo singular ou em associação
Provedor de dados: Ciência Rural
Autores: Neres,Marcela Abbado; Castagnara,Deise Dalazen; Silva,Francieli Batista; Oliveira,Paulo Sérgio Rabello de; Mesquita,Eduardo Eustáquio; Bernardi,Taimara Carla; Guarianti,Alcir João; Vogt,Alex Sérgio Lazaretti.
Objetivou-se avaliar características produtivas, estruturais e nutricionais dos capins Tifton 85 e Piatã e da leguminosa feijão-guandu em monocultivo ou em cultivo consorciado, com e sem aplicação de nitrogênio. Adotou-se o delineamento de blocos casualizados com parcelas subdivididas no tempo, com sete tratamentos nas parcelas principais e 3 tempos de avaliação nas sub-parcelas, com 4 repetições. Os tratamentos consistiram: Cajanus cajan cv. 'Super N' (feijão-guandu); Brachiaria brizantha cv. 'Piatã' solteira sem aplicação de nitrogênio (N); B. brizantha cv. 'Piatã' em associação com feijão guandu; B. brizantha cv. 'Piatã' solteira com aplicação de N (150kg ha-1); Cynodon sp. Tifton 85 em cultivo solteiro sem aplicação de N; Tifton 85 em associação com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria; Cynodon; Nitrogênio; Proteína bruta.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000500017

Uso de cobertura morta vegetal no controle da umidade e temperatura do solo, na incidência de plantas invasoras e na produção da cenoura em cultivo de verão
Provedor de dados: Ciência e Agrotecnologia
Autores: Resende,Francisco Vilela; Souza,Luciano Soares de; Oliveira,Paulo Sérgio Rabello de; Gualberto,Ronan.
Avaliaram-se os efeitos de diferentes tipos de cobertura morta de solo de origem vegetal sobre o crescimento, controle de plantas daninhas, produtividade e regime hidrotérmico do solo no cultivo da cenoura, cultivar Brasília, em um experimento conduzido no período de setembro a dezembro de 1998, em Marília, SP. O delineamento experimental utilizado foi o de blocos casualizados, com cinco tratamentos e quatro repetições em parcelas de 2 m². Estudou-se os seguintes tipos de cobertura: serragem de madeira, casca de arroz, maravalha (raspa de madeira), capim seco (Cynodon spp.) e controle (solo sem cobertura morta). A utilização da cobertura morta de solo mostrou-se como uma prática vantajosa para o cultivo de verão da cenoura, reduziu a temperatura em até...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daucus carota L.; Cobertura morta; Plantas daninhas; Produtividade.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542005000100012