Data/hora: 25/09/2024 19:54:00

Biblioteca(s): 	Embrapa Solos.	
Data corrente: 	05/09/2022	
Data da última atualização: 	06/09/2022	
Autoria: 	ALVES, A. C.; SOUZA, E. R. de; MELO, H. F. de; PINTO, J. G. O; REGO JUNIOR, F. E. de A.; SOUZA JÚNIOR, V. S. de; MARQUES, F. A.; SANTOS, M. A. do; SCHAFFER, B.; GHEYI, H. R.	
Afiliação: 	AGLAIR CARDOSO ALVES, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; EDIVAN RODRIGUES DE SOUZA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; HIDELBLANDI FARIAS DE MELO, UNIVERSIDADE FEDERAL DE VIÇOSA; JOSÉ GEORGE OLIVEIRA PINTO, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; FRANCISCO ERNESTO DE ANDRADE REGO JUNIOR, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; FLAVIO ADRIANO MARQUES, CNPS; MONALIZA ALVES DO SANTOS, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; BRUCE SCHAFFER, UNIVERSITY OF FLORIDA; HANS RAJ GHEYI, UNIVERSIDADE FEDERAL DE CAMPINA GRANDE.	
Título: 	Comparison of solution extraction methods for estimating electrical conductivity in soils with contrasting mineralogical assemblages and textures.	
Ano de publicação: 	2022	
Fonte/Imprenta: 	Catena, v. 218, 106581, Nov. 2022.	
DOI: 	https://doi.org/10.1016/j.catena.2022.106581	
Idioma: 	Inglês	
Conteúdo: 	Characterization of the soil solution is of fundamental importance for monitoring plant nutrient availability, environmental contamination, and evaluation of salt-affected soils. Due to the diversity of methodologies adopted in various parts of the world, comparison of the most common extraction methods in different types of soils is warranted. This study compared the efficiency of five soil solution extraction methods for five soils with different mineralogical assemblages and textures with the most commonly used saturated paste extract method. The extraction methods compared were: centrifugation, porous extractor capsules, and soil-water extracts (soil:water ratio of 1:2, 1:5, or 1:10). The soil types evaluated were: Regosol, Luvisol, Gleysol, Nitisol and Ferrosol in the soil surface and subsurface horizons. Linear regression equations were developed that allowed accurate estimation of electrical conductivity of the saturated paste extract (ECse). Ten equations were developed for the porous capsule method, eight were developed for the centrifugation method (with the exception of the Regosol with 900 g k-1 of total sand, which was not suitable for this method due to the high sand content), and 30 equations were developed for the soil-water extract method (at each of the soil:water ratios tested). The diversity of equations developed for soils with different mineralogical assemblages and textures should assist growers and extension workers who need to know the soil electrical conductivity for making soil management decisions.	
Palavras-Chave: 	Cápsula porosa; Centrifugation method; Métodos de extração; Porous capsules; Saturated paste extract; Soil-water extracts.	
Thesagro: 	Centrifugação; Condutividade Eletrica; Extração; Relação Solo-Água; Solução do Solo.	
Categoria do assunto: 	P Recursos Naturais, Ciências Ambientais e da Terra	
Registro original: 	Embrapa Solos (CNPS)	
Exemplares: 	CNPS - (21142-1) - UPC - AP - DD -  -  -  - DIS