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| Silva Neto,Eduardo Carvalho da; Santos,Jaqueline Jesus Santana dos; Pereira,Marcos Gervasio; Maranhão,Deyvid Diego Carvalho; Barros,Fabiana da Costa; Anjos,Lúcia Helena Cunha dos. |
| ABSTRACT: Records of changes in the phytosociological structure of vegetation can be observed more clearly in soils that have more significant accumulation of organic matter, like those occurring in high-mountain environments. The aim of this study was to characterize soils formed in high-mountain environments in the Itatiaia National Park (INP), state of Rio de Janeiro, southeastern Brazil, and to discuss the potential of preserved phytoliths as markers of vegetative history and environmental factors. Four profiles were selected, which were morphologically described and evaluated for their physical and chemical properties. For phytolith analysis and high-resolution determination of the stable carbon isotopes, samples were collected at 0.10 m intervals.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil memory; Pedogenesis; Histosols; Folist soils; Organic matter. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100312 |
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| Santos,Jaqueline Jesus Santana dos; Pêgo,Rogério Gomes; Couto,Beatriz Rodrigues Monteiro; Bueno,Mateus Marques; Carvalho,Daniel Fonseca de. |
| ABSTRACT Water management and meteorological conditions during the cropping phase play an essential role in maintaining the commercial quality of cut flowers. This study evaluates water requirement, sensitivity to water deficit, and commercial quality of gladiolus ‘Amsterdam’ produced with automated irrigation in different growing periods. The experimental design was in randomized blocks with five replicates and consisted of the growing period factors (winter/spring 2018 and autumn/winter 2019) and the irrigation level factors (45% - L1, 60% - L2, 80% - L3, and 100% - L4 of crop water requirement). An automatic irrigation controller was used for irrigation management. At the harvest point, we evaluated the stems for the diameter, number of flowers, spike... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gladiolus x grandiflorus Hort.; Irrigation water management; Degree-days; Protected cultivation.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100242 |
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