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Extraction and characterization of organic fractions isolated from a China Ball Clay quarried in Devon Sout West England. Author(s): MCINERNEV, R.; STUART, J.; NOVOTNY, E. H.; HAYES, M. H. B.; YOUNG, K. China Ball clay has been used for centuries in the tiling and pottery-ware industry. Because it is much finer than the other components in the casting slip the ball clay dominates the particle-particl... ... Repository: BDPA Publication year: 2008
Improvement of clay and sand quantification based on a novel approach with a focus on multispectral satellite images. Author(s): FONGARO, C. T.; DEMATTÊ, J. A. M.; RIZZO, R.; SAFANELLI, J. L.; MENDES, W. de S.; DOTTO, A. C.; VICENTE, L. E.; FRANCESCHINI, M. H. D.; USTIN, S. L. Abstract: Soil mapping demands large-scale surveys that are costly and time consuming. It is necessary to identify strategies with reduced costs to obtain detailed information for soil mapping. We aim... ... Repository: BDPA Publication year: 2018
Clay and refractory materials slurries in ductively coupled plasma optical emission spectrometry: effects of mechano chemical on emission intensities of analytes. Author(s): SANTOS, M. C.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. The developed work investigated the application of mechanochemical synthesis for promoting reactions in the samples and for synthesizing new compounds for increment of emission intensities of analytes... ... Repository: BDPA Publication year: 2005
The use of clay minerals to improve nitrogen fertilizer efficiency . Author(s): BERNARDI, A. C. de C.; POLIDORO, J. C.; MONTE, M. B. M.; PEREIRA, E. I.; OLIVEIRA, C. R. de Repository: BDPA Publication year: 2014
Adjustment of the expedite method for clay content determination in Rondônia soils. Author(s): SCHLINDWEIN, J. A.; MIOTTI, A. A.; FIORELI-PEREIRA, E. C.; PEQUENO, P. L. DE L.; BORTOLON, L.; MARCOLAN, A. L. O teor de argila é um importante atributo de solo e é utilizado na determinação de faixas de teores de fósforo para fins de recomendação de adubação. O objetivo deste trabalho foi ajustar o método de... ... Repository: BDPA Publication year: 2011
Chemical dispersants and pre-treatments to determine clay in soils with different mineralogy. Author(s): RODRIGUES, C.; OLIVEIRA, V. A. de; SILVEIRA, P. M. da; SANTOS, G. G. Knowledge of the soil physical properties, including the clay content, is of utmost importance for agriculture. The behavior of apparently similar soils can differ in intrinsic characteristics determi... ... Repository: BDPA Publication year: 2011
Predicting soil clay content from NIR, gamma-ray and XRF curves. Author(s): VASQUES, G. de M.; RODRIGUES, H. M.; TAVARES, S. R. de L.; COELHO, M. R. In this study, data from NIR, gamma ray and XRF curves, and three multivariate methods (partial least squares regression - PLS, random forest - RF, and support vector machine - SVM) were used to predi... ... Repository: BDPA Publication year: 2019
Substitution of clay content for P-Remaining as an index of the phosphorus buffering capacity for soils of Rio Grande do Sul. Author(s): ROGERI, D. A.; GIANELLO, C.; BORTOLON, L.; AMORIM, M. B. Mehlich-1 soil extract is currently used in Rio Grande do Sul (RS) and Santa Catarina (SC) States, in Brazil, to evaluate soil phosphorus available to plants and Mehlich-1 is sensitive to soil bufferi... ... Repository: BDPA Publication year: 2016
Spatial Relationships Between Soil Water Content and Hydraulic Conductivity in a Highly Structured Clay Soils. Author(s): VIEIRA, S. R.; GREGO, C. R.; TOPP, G. C.; REYNOLDS, W. D. The water, element essential for life, is present as a large reservoir in the soil. Soil water content varies in space as a consequence of the variability of other related properties and its study is... ... Repository: BDPA Publication year: 2014
Prediction of a low-risk concentration of diflubenzuron to aquatic organisms and evaluation of clay and gravel in reducing the toxicity. Author(s): JONSSON, C. M.; SILVA, M. S. G. M. e; MACEDO, V. S. de; DANTZGER, D. D.; VALLIM, J. H.; MARIGO, A. L. S.; AOYAMA, H. Resumo: Predição da concentração de baixo risco de diflubenzuron para organismos aquáticos e avaliação da argila e brita na redução da toxicidade. O diflubenzuron é um inseticida que além de ser usado... ... Repository: BDPA Publication year: 2015

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