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| Registros recuperados: 15 | |
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| Charlo,Hamilton César de O; Oliveira,Sueyde F de; Vargas,Pablo F; Castoldi,Renata; Barbosa,José Carlos; Braz,Leila T. |
| The production of sweet peppers in greenhouse has been severely affected by soil pathogens. With this, producers are adopting new cultivation techniques, such as cultivation in substrates, but information about this type of cultivation are still scarce. The aim of the present work was to evaluate nutrient accumulation in sweet peppers cultivated in coconut fiber with fertirrigation in greenhouse. Initially, 160 plants (Eppo cultivar) were divided into four blocks, where two plants per block were analyzed every 21 days after transplanting. The sweet peppers were cultivated in plastic pots of 13 L, containing coconut fiber, and placed in double rows with spacing of 0.5 x 0.8 m between single rows and 1.10 m between double rows. The commercial production of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; Coconut fiber; Fertirrigation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000100021 |
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| Silvano,Caroline; Freitas,Paulo S. L.; Rezende,Roberto; Mioto,Liliane S.; Dallcort,Rivanildo. |
| ABSTRACT The gelatin industry wastewater has nutrients in its composition, allowing its use in agriculture as an alternative to disposal and recycling of this residue. However, high application rates can cause the accumulation of elements such as sodium in the soil, and generate negative impacts on the environment. This study aimed to evaluate the effects of the application of rates up to 600 m3ha-1 of gelatin industry wastewater in soil columns, on soil chemical attributes in five depths. The experiment was conducted in a greenhouse, in PVC tube columns (0.20 m diameter) filled with distroferric Red Nitosol soil, of very clayey texture. The treatments consisted of increasing rates of wastewater equivalent to 0, 150, 300, 450 and 600 m3 ha-1, with a single... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertirrigation; Leaching; Sodium; Soil fertility. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000400606 |
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| Coelho,Eugênio F.; Andrade Neto,Torquato M. de; Barros,Damiana L.. |
| The Fertigation is the combined application of water and nutrients to a crop. It can be adapted to all types of agricultural crops. The objective of this study was to evaluate the effect of urea concentration in irrigation water on electrical conductivity of the soil solution and saturation extract along the first cycle of banana cv. Terra Maranhão. The experiment followed a completely randomized design with six treatments and ten replications. Treatments regarded for using three urea concentrations (1.0; 2.5 and 4.0 g L-1) in irrigation water applied by two micro irrigation systems (microsprinkler and drip). Results showed that there was a linear elevation of electrical conductivity of saturation extract and soil solution with the increase on... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Urea; Salinity; Fertirrigation. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600007 |
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| Cabral,Juarez Rogério; Freitas,Paulo Sérgio Lourenço; Bertonha,Altair; Muniz,Antônio Saraiva. |
| This experiment was carried out in the Arenito soil of the Cidade Gaúcha county, Northwest Paraná in Brazil, in which 0, 150, 300, 450 and 600 m³ ha-1 of wastewater were applied onto soil and the crop yield and soil chemistry were investigated for lopsided oat (Avena strigosa Schreb.) plants. The crop yield from the control was 2818 kg ha-1 contrasting 3629 kg ha-1 when 300 m³ ha-1 of cassava wastewater were applied, and potassium, after haversting, was the only nutrient found in a higher concentration in the soil profile. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Effluents; Wastewaters; Irrigation; Fertirrigation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100003 |
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| Manzano,Juan; Palau,Carmen V.; Benito,M. de Azevedo; Guilherme,V. do Bomfim; Vasconcelos,Denise V.. |
| ABSTRACT To determine the influence of geometry on the hydrodynamic behavior of Venturi injectors, using computational fluid dynamics techniques, we studied, at the Universitat Politècnica de València, Valencia, Spain, the geometric parameters that exert the most influence on head losses: the relationship between throat diameter and nozzle (β), nozzle angle (α1) and diffuser angle (α2). In addition, three throat morphologies (B1: nozzle-throat and throat-diffuser with a sharp edge; B2: nozzle-diffuser with a zero-length, sharp-edge throat; B3: nozzle-throat and throat-diffuser with rounded edge). We analyzed their influence on the velocity distribution and differential pressure between inlet and throat (DP/γ), throat and outlet (Δhv/γ), and outlet and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemigation; Fertirrigation; DFC. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000300482 |
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| Charlo,Hamilton César de O; Oliveira,Sueyde F de; Castoldi,Renata; Vargas,Pablo F; Braz,Leila T; Barbosa,José Carlos. |
| Knowledge about the growth of crops allows the planning of rational cultivation methods which contribute to achieve greater potential of plant species, besides supplying information for the construction of descriptive mathematical models of growth. The growth curve of sweet pepper (Eppo hybrid), cultivated in coconut fiber in a greenhouse with fertirrigation, was determined. The experiment consisted initially of 160 plants divided into four blocks. Two plants were analyzed per block every 21 days after transplanting, ending at 189 days after transplant. The cultivation was carried out in plastics pots of 13 L containing coconut fiber, which were arranged in double rows, spaced 0.5 x 0.8 m between simple rows and 1.1 m between double rows. In each harvest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; Growth analysis; Fertirrigation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000300010 |
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| Vasconcellos,S. P; Cereda,M. P.; Cagnon,J. R.; Foglio,M.A.; Rodrigues,R.A.; Manfio,G. P.; Oliveira,V. M.. |
| This study aimed at isolating and characterizing of microorganisms able to use linamarin as sole carbon source. Thirty one microbial strains were isolated from manipueira, a liquid effluent of cassava processing factories. Among these strains, Bacillus licheniformis (isolate 2_2) and Rhodotorulla glutinis (isolate L1) were able to degrade 71% and 95% of added linamarin, respectively, within 7 days, showing high biodegradation activity and great potential for detoxification of cassava processing wastewaters. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus; Degradation; Manipueira; Fertirrigation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000400019 |
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| Silva Júnior,João J. da; Coelho,Eugênio F.; Sant'Ana,José A. do V.; Accioly,Adriana M. de A.. |
| The study aimed to evaluate chemical, microbiological and hydro-physical changes of a Dystrophic Yellow Latosol, receiver of different levels of manipueira (cassava wastewater) application, in the cultivation of 'Terra Maranhão' banana. The experimental design was a randomized block with three replications in a factorial scheme 3 x 4, in which it was considered three soil depths and four levels of manipueira. It was evaluated the weighted mean diameter of the aggregate, the percentage of aggregation at different periods, soil density, particle density, porosity and soil saturated hydraulic conductivity, in addition to pH of P (mg dm -3), K (mg dm-3), Ca (cmolc dm-3), Mg (cmolc dm-3), Ca+Mg (cmolc dm-3), Al (cmolc dm-3), Na (cmolc dm -3), H+Al (cmolc dm-3),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertirrigation; Water reuse; Musa spp. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400013 |
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| Registros recuperados: 15 | |
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