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Title: | Potencialidade de uso de zeólitas na atenuação do déficit hídrico em Latossolo do cerrado |
Other Titles: | Potential use of zeolites in attenuation water deficit in cerrado latosol |
Keywords: | Clinoptilolita Conteúdo de água disponível Solos tropicais Latossolo - Déficit hídrico Cerrado - Déficit hídrico Zeólitas Clinoptilolite Available water content Tropical soils Latosol - Water deficit Cerrado - Water deficit Zeolites |
Issue Date: | 2014 |
Publisher: | Universidade Estadual de Londrina |
Citation: | BARBOSA, S. M. et al. Potencialidade de uso de zeólitas na atenuação do déficit hídrico em Latossolo do cerrado. Semina: Ciências Agrárias, Londrina, v. 35, n. 4, p. 2357-2368, 2014. Suplemento. |
Abstract: | The improvements of hydro-physical conditions of the Cerrado Biome soils are extremely important in the view point of agricultural limitations in seasons of poor rainfall distribution and drought period. Against this background, we emphasize the potential use zeolites as soil conditioners, because they are minerals that have large interconnected voids that give them a high degree of hydration with ease to retain and release water. This study aimed to characterize the water retention in dystroferric Red Latosol, as well as the mineral zeolite, beyond their mixtures in order to investigate about ability of this mineral increasing the water availability range of Latosol for plants. The completely randomized experiment consisted of treatments based on mixtures of zeolite:Latosol in the proportion 2,5: 97,5%; 5:95%; 10:90% and 20:80%, respectively. In order to determination of water retention curve was established the water content in the following potential matric: -1, -2, -4, -6, -10 kPa suction units and -33, -100 kPa in chambers Richards and -500 the -1500 kPa in thermocouple psychrometer WP4-T in soil samples. Was fitted the van Genuchten model by nonlinear regression procedures of software SWRC, to experimental data. The addition of zeolite promoted changes in pore intermediates distribution of Latosol, enhancing water release for plants. |
URI: | http://repositorio.ufla.br/jspui/handle/1/13192 |
Appears in Collections: | DCS - Artigos publicados em periódicos |
Files in This Item:
File | Description | Size | Format | |
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ARTIGO_Potencialidade de uso de zeólitas na atenuação do déficit hídrico em Latossolo do cerrado.pdf | 1,07 MB | Adobe PDF | View/Open |
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