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| Registros recuperados: 24 | |
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| Souza, Renan Soares de; Rezende, Roberto; Hachmann, Tiago Luan; Lozano, Cláudia Salim; Andrian, André Felipe Barion Alves; Freitas, Paulo Sérgio Lourenço de. |
| The objective of this study was to evaluate the effect of nitrogen and potassium silicate on the productive and commercial aspects of curly lettuce, Vera cultivar. The experimental design was completely randomized (CRD), with ten treatments and three replications. The treatments, arranged in a factorial design according to the Plan Puebla III matrix (Turrent & Laird, 1975), consisted of the combination of five doses of nitrogen (9; 54; 90; 126 and 171 kg ha-1) and five doses of potassium silicate (1.15; 6.90; 11.50; 16.10 and 21.85 kg ha-1). A control treatment without application of nitrogen and potassium silicate was also inserted. The crop was grown in a greenhouse and the doses were applied as sidedressing using drip micro-irrigation system. Total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.03.00-8 Lactuca sativa L. protected cultivation micro drip irrigation silicon. Fitotecnia; Fertirrigação Lactuca sativa L.; Protected cultivation; Micro drip irrigation; Silicon.. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32897 |
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| Silva,Roberto C. da; Cordeiro Júnior,José J. F.; Pandorfi,Héliton; Vigoderis,Ricardo B.; Guiselini,Cristiane. |
| ABSTRACT Computational simulations of mass and energy flow help in implementing alternative cooling systems in protected environments. The aim of this study was to model and simulate the interaction between external and internal environments of a protected environment by means of computational fluid dynamics (CFD) techniques and validate micrometeorological variables for subsequent comparison between natural and indirect ventilation by ground heat exchangers. At the first phase, the micrometeorological variables global solar radiation (Qg), air temperature (Tair), and air relative humidity (RH) were monitored. The second phase consisted of the numerical modeling of finite volumes, with validation through recorded data, as well as simulation and comparison... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Numerical simulation; Micrometeorology; Protected cultivation; Finite elements. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300414 |
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| Costa,Edilson; Martins,Roberta F.; Faria,Tatiane A. C.; Jorge,Marçal H. A.; Leal,Paulo A. M.. |
| The seedling production stage is the key to achieve uniformity in tree breeding stage. This study evaluated "bocaiúva" (Acrocomia aculeata) seedling formation, with pre-germinated seeds in different substrates and protected environments, in the University of Mato Grosso do Sul State, Aquidauana, MS. As substrates, we used 100% cattle manure (M), 100% cassava branches (CB), 100% vermiculite (V), 50% cattle manure + 50% cassava branches, 50 % cattle manure + 50% vermiculite, 50% cassava branches + 50% vermiculite and ⅓ cattle manure + ⅓ cassava branches + ⅓ vermiculite. These substrates were tested in a greenhouse covered with 150 µm low density polyethylene (LDPE) film under thermo-reflective screen with 50% shading under film; black screen with 50% shading... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bocaiúva; Cattle manure; Cassava branches; Vermiculite; Protected cultivation. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000300002 |
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| Oliveira,Letícia C. de; Costa,Edilson; Cortelassi,Julissandra A. da S.; Rodrigues,Edson T.. |
| This study with beetroot seedlings, cultivar Top Tall Early Wonder, was carried out at the State University of Mato Grosso do Sul (UEMS/Aquidauana), from October to November 2008. Three environments of cultivation were used: greenhouse; nursery with monofilament screen of 50 % of shading; and nursery with aluminized thermal reflective screen of 50% of shading. In these environments, three polystyrene trays of 72, 128 and 200 cells, filled with four substrates, were tested: soil; Plantmax®; coconut fiber and vermiculite. There were no replication environments and then each one was considered an experiment alone. For each environment, it was adopted a completely randomized design in factorial scheme 3x4 (three trays x four substrates), with four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beta vulgaris; Protected cultivation; Propagation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000300001 |
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| Cavalcanti,Sávio D. L.; Pandorfi,Héliton; Guiselini,Cristiane; Menezes,Dimas; Neto,Luiz A. de A.. |
| ABSTRACT This research was carried out in Recife, PE, Brazil, and aimed to assess the variation of the surface temperature of trays and substrate in the production of lettuce seedlings and its influence on the final product. Trays consisted of expanded polystyrene, conventional polyvinyl chloride, polyvinyl chloride painted white, and polyvinyl chloride painted gray. Two cultivars (Solaris and Vanda) were used to register crop biometric variables from seedling stage to the final product (46 days). Tray and substrate temperatures were recorded by means of an infrared thermal imager. The experimental design was a completely randomized design in a 4 × 2 factorial scheme with three replications. The conventional polyvinyl chloride tray presented the highest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ambience; Protected cultivation; Lactuca sativa L.; Seedlings. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000100041 |
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| Costa,Edilson; Leal,Paulo A. M.; Benett,Cleiton G. S.; Benett,Katiane S. S.; Salamene,Luiz C. P.. |
| The seedlings production is an essential part for vegetables production. Thus, this study aimed to evaluate the environment, the substrates and the containers in the development of tomato seedlings, cv. Santa crus Kada Gigante, in Aquidauana -MS, Brazil region, from October to November, 2008. Polystyrene trays with 72; 128 and 200 cells, filled with four substrates (soil; Plantmax®; coconut fiber and vermiculite) were tested in three protected environments (greenhouse; screened with Sombrite® and screened with Aluminet®). The experimental design was completely randomized, factorial scheme 3x4 (three trays x four substrates), with four replications, being analyzed individual variance analysis and joint analysis for the environments. The environment with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Protected cultivation; Propagation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000500002 |
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| Binotti,Eliana D. C.; Binotti,Flávio F. da S.; Lucheti,Bruna Z.; Costa,Edilson; Pinto,Adriana H.. |
| ABSTRACT Paricá (Schizolobium amazonicum) can be used for rehabilitation of degraded lands, timber manufacturing markets. However, for its planting, high-quality seedlings should be used. Thus, this study aimed to evaluate the effect of different types of paclobutrazol (PBZ) application and two shading levels on high-quality seedling production. As there was no replication of cultivation environments, we considered each one of them as an experiment. For each environment (35 and 50% shading screen), a completely randomized design was adopted, testing combinations of two types of PBZ application (direct seed immersion in 0.005% PBZ solution; substrate hydration with 0.005% PBZ solution; and 50% seed hydration and 50% substrate hydration; plus, a control),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Protected cultivation; Plant environment; High-quality seedlings; Plant growth reducer; Schizolobium amazonicum. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000500586 |
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| Costa,Edilson; Durante,Lucas Gustavo Y; Santos,Adriano dos; Ferreira,Cleber R. |
| The seedling quality affects the plant performance in the field and proper techniques can increase the productivity of vegetables. The objective of this study was to evaluate the production of eggplant seedlings, cultivar Embu, under protected environments, containers and substrates, and its development in the field at the State University of Mato Grosso do Sul, in Aquidauana, Brazil. For seedlings production, each environment was considered an experiment, which was carried out in a completely randomized design, in split-plot scheme (containers x substrates), with eight replications. Subsequently we realized joint analysis of the experiments to compare the environments. In the field, the design was in randomized blocks using four replications. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum melongena; Protected cultivation; Trays; Cattle manure; Cassava stems. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000100022 |
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| Castoldi,Renata; Gomes,Rafaelle F; Charlo,Hamilton CO; Melo,Danilo M; Braz,Leila T. |
| The objective of this work was to evaluate the performance of three Japanese group cucumber hybrids, which were cultivated in two cultivation systems. The experiment was designed in a split-plot randomized block design with two cultivation systems (coconut fiber and soil) for commercial Japanese cucumber hybrids ('Tsuyataro', 'Yoshinari' and 'Nankyoku'). After harvesting the cucumbers, we evaluated the number of marketable fruits per plant, the average fruit length, the mean fruit diameter, the bottom fruit diameter, the marketable production of fruits per plant and the marketable yield per hectare. There were significant interactions between the cultivation system and the hybrid, as indicated by the number of marketable fruits. The Nankyoku hybrid had the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis sativus; Protected cultivation; Substrate. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362014000100086 |
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| Cecílio Filho,Arthur Bernardes; Rezende,Bráulio Luciano A; Costa,Caciana C. |
| Lettuce and tomato are vegetables that can be grown in protected cultivation, under given conditions. Considering their expensive production systems, intercropping might be an excellent alternative to optimize costs. Four experiments were carried out at the São Paulo State University (UNESP), at Jaboticabal, Brazil, to study the economic viability of intercropping lettuce and tomato under protected cultivation. To set the intercropping, lettuce was transplanted 0, 10, 20, and 30 days after transplanting (DAT) tomato and vice-versa, in two seasons, namely April to September 2003 and January to June 2004, when monocultures of both vegetables were also carried out. At the first planting season, operational profits (OP) in intercropping (lettuce transplanted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Lycopersicon esculentum; Intercropping; Protected cultivation; Economic feasibility; Profitability. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000300015 |
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| Valadares,Ricardo de N; Nóbrega,Danieli A; Lima,Lilian B de; Mendes,Adônis Q; Silva,Fabian S; Melo,Roberto de A; Menezes,Dimas. |
| ABSTRACT The aim of this study was to estimate the genetic divergence among eggplant genotypes for agronomic traits in order to gather information for the selection of genotypes in eggplant breeding programs for tolerance to high temperatures. Ten traits recommended by the International Board for Plant Genetic Resources were analyzed in 24 genotypes, arranged in a randomized complete block design with four replicates. Data were submitted to analysis of variance (P<0.01) and later to the UPGMA and Tocher grouping methods, using the generalized Mahalanobis distance (D2) as dissimilarity measure. Three and six groups of similarity were obtained, respectively, for the multivariate techniques used, UPGMA and Tocher, with concordance in the grouping of 87.50%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum melongena; Genetic variability; Protected cultivation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000300272 |
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| Souza,Luís Gustavo de S e; Ferreira,Regina Lúcia F; Araújo Neto,Sebastião Elviro de; Silva,Nilciléia M da; Uchôa,Thays L; Almeida,Waldiane A de. |
| ABSTRACT The objective of this work was to evaluate the quality of chicory seedlings in organic substrata and their influence on yield and commercial yield in a protected environment and under direct sunlight. Seedling and field production experiments were conducted in a randomized block design with four blocks. In the first experiment, seedlings were produced on substrata by alternating the conditioner: 1) dry coconut fiber + blend (soil, organic compost, charcoal); 2) carbonized rice husk + blend; 3) crushed ouricuri stem + blend; 4) decomposed kapok stem + blend and 5) commercial substratum. Sufficient seedlings were produced for the evaluations and transplantation. In the field phase, two experiments were evaluated, one in a protected environment and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eryngium foetidum; Organic agriculture; Alternative substratum; Protected cultivation; Organic residues. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200224 |
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| BRAGA, M. B.; SILVA, A. A. de S.; GUEDES, I. M. R.; FACHINI, J.; SILVA, J. da; LIMA, C. E. P.. |
| Em cultivos protegidos as variáveis essenciais para a determinação da demanda hídrica, como os coeficientes de cultura (Kc), ainda são bastantes escassas no Brasil e no mundo. O objetivo deste trabalho foi determinar o Kc de híbridos de melão grupo Cantalupensis, em função dos graus-dia (GD). O experimento foi conduzido em estufa plástica no campo experimental da Embrapa Hortaliças, Distrito Federal. Foram testados o cultivo de cinco híbridos de melão, com e sem o uso mulching para cobertura do solo. Para obter a evapotranspiração da cultura foram utilizados lisímetros de percolação. |
| Tipo: Folhetos |
Palavras-chave: Melão; Manejo de Água; Cobertura do Solo; Irrigação; Cucumis Melo; Melons; Protected cultivation; Irrigation management. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1146879 |
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| Registros recuperados: 24 | |
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