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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

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

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

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

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

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

Author(s): TEIXEIRA, D. D. B.; MARQUES JUNIOR, J.; SIQUEIRA, D. S.; VASCONCELOS, V.; CARVALHO JUNIOR, O. A.; MARTINS, E. de S.; PEREIRA, G. T.

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

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

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

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

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