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| Oliveira,Francisco A; Duarte,Sergio N; Medeiros,José F; Lima,Carlos JGS; Oliveira,Mychelle KT; Silva,Ricardo CP. |
| ABSTRACT Fertigation can be managed using fixed fertilizer doses or by assessing the ionic concentration of soil solution throughout the growing period. This work studied how different fertigation management systems affected sweet pepper yield and quality. The experiment was carried out in greenhouse, in pots. Fertigation was managed according to the crop uptake rate (M1) or by monitoring either the electrical conductivity (M2) or the N and K concentration (M3) in the soil solution. Fertigation management was combined with six N and K doses (0, 50, 100, 150, 200 and 300% of the recommended dose for sweet pepper in the region), in complete blocks at random, with four replications, and treatments in 3x6 factorial. Dry matter accumulation, yield and fruit... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; Ionic concentration; Porous cup extractors; Nitrogen; Potassium; Electrical conductivity.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000200235 |
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| Sampaio,Italo MG; Silva Júnior,Mário L; Bittencourt,Ricardo FPM; Santos,Gabriel AM dos; Nunes,Fiama KM; Costa,Vivian CN. |
| ABSTRACT In the last years, jambu has become popular and greatly appreciated, due to its remarkable taste. Thus, hydroponically cultivated jambu is promising, since it achieves better yield and production quality. The aim of this study was to evaluate the effect of ionic concentration in nutrient solution on growth, productivity and gas exchange of jambu. The experimental design was completely randomized, with five treatments and four replicates. The treatments consisted of variations of ionic concentration using the nutrient solution proposed by Hoagland & Arnon (25, 50, 75, 100 and 125%). The length of the main stem, stem diameter, number of inflorescence, leaf area, fresh and dry biomass (shoot, root and inflorescence), photosynthesis, stomatal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acmella oleracea; Ionic concentration; Fresh and dry mass. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362021000100065 |
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| Nunes Júnior,Edivan S.; Medeiros,José F. de; Oliveira,Francisco de A. de; Lima,Luan A.; Bezerra,Francisco M. S.; Alves,Rita de C.. |
| ABSTRACT The objective of the study was to evaluate the effect of different managements of fertigation and NK doses on the production of bell pepper fruit in a protected environment. The experimental design was randomized blocks in 3 x 5 factorial. The treatments were formed by the combination of three managements of fertigation (M1 - Based on the rate of absorption; M2 - Monitoring the electrical conductivity of the soil solution; M3 - Monitoring concentrations of N and K ions in the soil solution), with five doses of NK (0, 50, 100, 150 and 200% of the recommended dose) and four replicates. Six samples were collected and the following variables were evaluated: number, length and diameter of fruit, pulp thickness and fruit production. Except for diameter,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum L.; Soil solution; Salinity; Ionic concentration. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000300186 |
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