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| Registros recuperados: 12 | |
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| Bassoi,Luís Henrique; Resende,Geraldo M.; Flori,José Egídio; Silva,José Antonio M.; Alencar,Cristina M.. |
| A distribuição radicular de duas cultivares de aspargo (New Jersey 220 e UC 157 F1), irrigadas por aspersão convencional, foi avaliada durante o ano de 1997 em solos de textura arenosa, em plantio experimental e comercial, respectivamente, nos Projetos de Irrigação de Bebedouro e Senador Nilo Coelho, em Petrolina (PE). O objetivo foi obter informações do sistema radicular do aspargo, empregando-se os métodos do monolito e do perfil de solo auxiliado pela análise de imagens digitais, para o manejo de solo e água nesse cultivo. Na área experimental, a maior parte da matéria seca, área e comprimento de raízes no perfil de solo e densidade de comprimento radicular foram encontradas até a profundidade de 0,4 m nas duas cultivares, enquanto que na comercial a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Asparagus officinalis; Distribuição de raízes; Monolito; Análise de imagens. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362001000100004 |
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| Lima,Maria Auxiliadora Coêlho de; Bassoi,Luís Henrique; Silva,Davi José; Santos,Polyane de Sá; Paes,Prissila de Castro; Ribeiro,Paula Rose de Almeida; Dantas,Bárbara França. |
| Yield and physical and chemical characteristics of 'Paluma' guava fruit were evaluated as a function of the harvest at different maturity stages, under influence of nitrogen and potassium fertilization, in Petrolina, State of Pernambuco, Brazil. Fertilizer rates were 67 kg N + 33 kg K2O, 133 kg N + 67 kg K2O, 200 kg N + 100 kg K2O and 267 kg N + 133 kg K2O per hectare. Fruits were evaluated at maturity stages 2, 3, 4 and 5, established according to peel color. Higher doses of N and K induced higher yields. Nevertheless, fertilization with 200 kg of N + 100 kg of K per hectare improved fruit quality, delaying ascorbic acid breakdown and conserving pulp firmness. Main changes took place at maturity stages 4 and 5, when the fruit should present ideal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psidium guajava L.; Nutrition; Maturity stages; Fruit quality. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452008000100045 |
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| Teixeira,Antônio Heriberto de Castro; Bassoi,Luís Henrique; Reis,Valdecira Carneiro da Silva; Silva,Thieres George Freire da; Ferreira,Marcelo de Novaes Lima; Maia,Joselanne Luiza Trajano. |
| A evapotranspiração (ETc) e o coeficiente de cultura (Kc) da goiabeira (Psidium guajava L.) cv. Paluma, aos dois anos e três meses após o plantio e irrigada por microaspersão, foram determinados durante um ciclo de produção, em Petrolina-PE, Brasil. O método da razão de Bowen foi utilizado para a estimativa da evapotranspiração da cultura (ETc), enquanto o de Penmam-Monteith foi empregado para a estimativa da evapotranspiração de referência (ETo), com a utilização de duas estações agrometeorológicas, uma automática e outra convencional. A ETc acumulada entre a poda (junho de 2001) e a colheita (dezembro de 2001) foi de 906 mm em 200 dias, correspondendo a um valor médio de 4,53 ± 0,68 mm.dia-1. O Kc apresentou valores entre 0,75 a 0,93 e de 0,61 a 0,84,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psidium guajava L.; Balanço de energia; Evapotranspiração; Coeficiente de cultura. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452003000300024 |
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| Bassoi,Luís Henrique; Silva,José Antonio Moura e; Silva,Emanuel Elder Gomes da; Ramos,Clovis Manoel Carvalho; Sediyama,Gilberto Chohaku. |
| In order to establish guidelines for irrigation water management of banana cv. Pacovan (AAB group, Prata sub-group) in Petrolina County, northeastern Brazil, the root distribution and activity were measured on an irrigated plantation, in a medium texture soil, with plants spaced in a 3 x 3 m grid. Root distribution was evaluated by the soil profile method aided by digital image analysis, while root activity was indirectly determined by the changing of soil water content and by the direction of soil water flux. Data were collected since planting in January 1999 to the 3rd harvest in September 2001. Effective rooting depth increased from 0.4 m at 91 days after planting (dap), to 0.6 m at 370, 510, and 903 dap, while water absorption by roots was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp; Semi-arid; Microsprinkle. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452004000300021 |
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| Bassoi,Luís Henrique; Teixeira,Antonio Heriberto de Castro; Lima Filho,José Moacir Pinheiro; Silva,José Antonio Moura e; Silva,Emanuel Elder Gomes da; Ramos,Clovis Manoel Carvalho; Sediyama,Gilberto Chohaku. |
| The water consumption and the crop coefficient of the banana cv. Pacovan were estimated in Petrolina County, northeastern Brazil, in order to establish guidelines to irrigation water management. Evaluations were carried out since planting in January 1999 to the 3rd harvest in September 2001 on a microsprinkler irrigated orchard, with plants spaced in a 3 x 3 m grid. Average daily water consumption was 3.9, 4.0, and 3.3 mm in the 1st, 2nd and 3rd growing seasons, respectively. Crop coefficient values increased from 0.7 (vegetative growth) to 1.1 (flowering). Even with high soil water availability, transpiration was reduced due to high evaporative demand. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp; Semi-arid; Kc. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452004000300022 |
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| Bassoi,Luís Henrique; Flori,José Egídio; Silva,Emanuel Elder G. da; Silva,José Antonio M. e. |
| The water consumption, crop coefficient and effective rooting depth of the peach palm cultivated in a Vertisol were evaluated over two years and three months, from planting to fifth harvest, in Juazeiro, Bahia State, Brazil. Plants were irrigated by microsprinklers under two irrigation treatments, full irrigation (FI) and reduced irrigation (RI), and the amount of water applied in RI corresponded to 75% of that of FI. Water consumption and crop coefficient has increased markedly at the first harvest (7.3 mm day-1 and 1.2, respectively, in FI treatment) in the thirteenth month, as a consequence of plant canopy development. After that, plants were harvested every three or four months, and these values varied a little due to decrease of the stand. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bactris gasipaes Kunth; Semi-arid; Yield. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362003000400022 |
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| Oliveira,Vanessa de Souza; Lima,Augusto Miguel Nascimento; Salviano,Alessandra Monteiro; Bassoi,Luís Henrique; Pereira,Giuliano Elias. |
| Soils under natural conditions have heavy metals in variable concentrations and there may be an increase in these elements as a result of the agricultural practices adopted. Transport of heavy metals in soil mainly occurs in forms dissolved in the soil solution or associated with solid particles, water being their main means of transport. In this context, the aim of this study was to evaluate the heavy metal and micronutrient content in the soil and in the grapevine plant and fruit under different irrigation strategies. The experiment was carried out in Petrolina, PE, Brazil. The treatments consisted of three irrigation strategies: full irrigation (FI), regulated deficit irrigation (RDI), and deficit irrigation (DI). During the period of grape maturation,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water availability; Nutrients; Grape. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100162 |
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| Oldoni,Henrique; Costa,Bruno Ricardo Silva; Bognola,Itamar Antônio; Souza,Claudia Rita de; Bassoi,Luís Henrique. |
| ABSTRACT Characterization of the spatial variability of vegetative vigor in vineyards can help improve the performance of site-specific management practices, or the management of vineyards with different rates. Characterization using canopy proximal sensing has been a widely disseminated technique; however, vineyards in southeastern Brazil, where the utilization of annual double pruning results in a winter harvest, knowledge of the role of variability in improving vineyard management has not yet been applied. This study aimed to determine if post-veraison mapping of a normalized difference vegetation index could be used to assess the variability in grapevine vigor, water status, physiology, yield and berry quality attributes at harvest in an irrigated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis vinifera L.; Precision viticulture; Proximal sensing; Vegetative vigor; Grape quality. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000400101 |
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| Silva,Davi José; Bassoi,Luís Henrique; Rocha,Marlon Gomes da; Silva,Alexsandro Oliveira da; Deon,Magnus Dall’Igna. |
| ABSTRACT Viticulture is an activity of great social and economic importance in the lower-middle region of the São Francisco River valley in northeastern Brazil. In this region, the fertility of soils under vineyards is generally poor. To assess the effects of organic and nitrogen fertilization on chemical properties and nitrate concentrations in an Argissolo Vermelho-Amarelo (Typic Plinthustalf), a field experiment was carried out in Petrolina, Pernambuco, on Syrah grapevines. Treatments consisted of two rates of organic fertilizer (0 and 30 m3 ha-1) and five N rates (0, 10, 20, 40, and 80 kg ha-1), in a randomized block design arranged in split plots, with five replications. The organic fertilizer levels represented the main plots and the N levels, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertigation; Soil solution; Carbon; Micronutrients; Vitis vinifera. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100503 |
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| Souza,Claudia Rita de; Bassoi,Luís Henrique; Lima Filho,José Moacir Pinheiro; Silva,Fabrício Francisco Santos da; Viana,Leandro Hespanhol; Dantas,Barbara França; Pereira,Maiane Santos; Ribeiro,Paula Rose de Almeida. |
| There is an increased demand for high quality winegrapes in the São Francisco Valley, a new wine producing area in Brazil. As the grape quality is closely linked to the soil water status, understanding the effects of rootstock and irrigation management on grapevine water relations is essential to optimize yield and quality. This study was carried out to investigate the effects of irrigation strategies and rootstocks on water relations and scion vigour of field-grown grapevines in Petrolina, Pernambuco state, Brazil. The cultivars used as scions are Moscato Canelli and Syrah, both grafted onto IAC 572 and 1103 Paulsen rootstocks. The following water treatments were used: deficit irrigation, with holding water after veraison; and partial root-zone drying,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis vinifera L.; Partial rootzone drying; Deficit irrigation; Stomatal conductance. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000400002 |
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| Nascimento,Patricia dos Santos; Silva,Juliano Athayde; Costa,Bruno Ricardo Silva; Bassoi,Luís Henrique. |
| Na análise das variabilidades espacial e temporal dos fatores inerentes à produtividade agrícola, a geoestatística constitui a base para a aplicação dos conceitos de agricultura de precisão. Assim, este estudo foi desenvolvido com os objetivos de avaliar a variabilidade espacial de atributos físico-hídricos do solo e delimitar zonas homogêneas para o manejo da irrigação em um cultivo de videira, utilizando ferramentas geoestatísticas. Um experimento de campo foi realizado em Petrolina, PE, no Vale do Submédio São Francisco, em um pomar de videira irrigada por microaspersão. Em uma área de 3,2 ha, foram coletadas 160 amostras de solo nas camadas de 0,0-0,20 e 0,20-0,40 m, em quatro transeções, as quais foram utilizadas para as determinações das frações... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Água disponível no solo; Geoestatística; Dependência espacial. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400006 |
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| Registros recuperados: 12 | |
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