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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
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
Use of airborne radar images and machine learning algorithms to map soil clay, silt, and sand contents in remote areas under the Amazon rainforest. Author(s): FERREIRA, A. C. de S.; CEDDIA, M. B.; COSTA, E. M.; PINHEIRO, E. F. M.; NASCIMENTO, M. M. do; VASQUES, G. M. Soil texture has a great influence on the physical-hydric and chemical behavior of soils. In the Amazon regions, due to the presence of dense forest cover and limited access to roads, carrying out sur... ... Repository: BDPA Publication year: 2022
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
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
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
Soil organic matter over 4 growing seasons of aerobic rice on a clay and sandy soil amended with hardwood biochar in the brazilian savannah. Author(s): CARVALHO, M. T. de M.; MADARI, B. E.; LEAL, W. G. de O.; SOUZA, D. M. de; SOLER, M. A. da S.; MAIA, A. de H. N.; PETTER, F. A.; MEDEIROS, J. C. In the Brazilian savannah (Cerrado), soils are highly weathered, acidic, with low soil organic matter (SOM) levels, requiring additions of lime and fertiliser for agricultural use. In these soils, imp... ... Repository: BDPA Publication year: 2013
Critical levels and fertility classes of soils with high-activity clay in the Brazilian semi-arid region. Author(s): SOUZA, H. A. de; LIMA NETO, A. J. de; POMPEU, R. C. F. F.; GUEDES, F. L.; TONUCCI, R. G.; CAVALCANTE, A. C. R.; NATALE, W.; VALLADARES, G. S.; ESCOBAR, M. E. O.; RODRIGUES, H. C. de A.; ANDRADE, H. A. F. de; OLIVEIRA JUNIOR, J. O. L. de; SAGRILO, E. Soil fertility evaluation is important for adopting conservation management and adequate nutrient supply. The objective of this study was to identify critical levels and soil fertility classes using t... ... Repository: BDPA Publication year: 2024
Testing MACRO (version 5.1) for pesticide leaching in a dutch clay soil. Author(s): SCORZA JUNIOR, R. P.; JARVIS, N. J.; BOESTEN, J. J.; ZEE, S. E. van der; ROULIER, S. Repository: BDPA Publication year: 2007
Highly absorbent clay mineral soils can drastically reduce the efficiency of phosphate fertilizers. Author(s): FREIRE, G. A. P.; WADT, P. G. S.; DELARMELINDA, E. A.; NEVES, L. V. de M. W.; SOUZA JÚNIOR, V. S. de; BURITY, K. T. L. Repository: BDPA Publication year: 2024

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