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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. Soil clay content is an important soil attribute and has been used to classification of phosphorus status in the soil in order to determinate the needing of phosphorus amounts to be applied to crops p... ... Repository: BDPA Publication year: 2011
Extraction and characterization of organic fractions isolated from a China Ball Clay quarried in Devon Sout West England. Author(s): NOVOTNY, E. H. 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): VICENTE, L. E. 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): NOGUEIRA, A. R. de 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.; OLIVEIRA, C. R. de Repository: BDPA Publication year: 2014
Chemical dispersants and pre-treatments to determine clay in soils with different mineralogy. Author(s): SILVEIRA, P. M. da 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
Mapping units based on spatial uncertainty of magnetic susceptibility and clay content. Author(s): MARTINS, E. de S. This study aimed to use spatial uncertainty of magnetic susceptibility (MS) and clay content to improve soil- mapping units. In an experimental area of 870 ha, a regular sampling grid containing 371 p... ... Repository: BDPA Publication year: 2018
Predicting soil clay content from NIR, gamma-ray and XRF curves. Author(s): VASQUES, G. de 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): BORTOLON, L. 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): GREGO, C. R. 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

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