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The advent of organic farming models: analysis of the current situation and perspectives in Brazil. Author(s): ABREU, L. S. de; BELLON, S.; CORRALES, F. M. This text analyses the development of organic farming in Brazil. It shows the great variability of social models of organic production recognised by Brazilian Law: organic, agroecological, ecological... ... Repository: BDPA Publication year: 2005
Prediction statistical model for soil organic carbon mapping in crop areas using the Landsat/OLI sensor. Author(s): PADILHA, M. C. C.; VICENTE, L. E.; DEMATTÊ, J. A. M.; LOEBMANN, D. G. dos S. W.; URBINA SALAZAR, D.; KOGA-VICENTE, A.; ARAUJO, L. S. de; MANZATTO, C. V. Abstract: The quantification of soil organic carbon (SOC) is essential to agriculture and sustainable use of the land. However, there are difficulties to estimate it in large areas due to high cost of... ... Repository: BDPA Publication year: 2019
Validation of the CENTURY model to simulate the dynamics of soil organic matter under different production systems in the Cerrado region - Brazil. Author(s): FERNANDES, F. A.; FERNANDES, A. H. B. M. Repository: BDPA Publication year: 2012
Modelling and digital soil mapping of the organic carbon stock in the topsoil (0-10 cm) of Rio de Janeiro State, Brazil. Author(s): MENDONÇA-SANTOS, M. de L.; SANTOS, H. G. dos; COELHO, M. R. A soil database with 431 soil profiles of Rio de Janeiro State was used in the scope of a research project entitled "Quantifying the magnitude, spatial distribution and organic carbon in soils of Rio... ... Repository: BDPA Publication year: 2008
Building a Knowledge Management Model at Brazil's Embrapa (Brazilian Agricultural Research Corporation): Towards a Knowledge-Based View of Organizations. Author(s): ALVARENGA NETO, R. C. D. de; VIEIRA, J. L. G. This paper investigates and analyses the process of building a knowledge management (KM) model at Brazil‟s Embrapa (The Brazilian Agricultural Research Corporation). Embrapa is a world class kno... ... Repository: BDPA Publication year: 2012
Predicting soil organic carbon dynamics of integrated crop-livestock system in Brazil using the CQESTR model. Author(s): OLIVEIRA, J. M.; GOLLANY, H. T.; POLUMSKY, R. W.; MADARI, B. E.; LEITE, L. F. C.; MACHADO, P. L. O. A.; CARVALHO, M. T. M. Land degradation and reduction in productivity have resulted in losses of soil organic carbon (SOC) in agricultural areas in Brazil. Our objectives were to 1) evaluate the predictive performance of CQ... ... Repository: BDPA Publication year: 2022
Modeling of bentazone leaching in soils with low organic matter content. Author(s): PASZKO, T.; SPADOTTO, C. A. Abstract: The aim of this study was to estimate bentazone´s potential to leach to groundwater in the Arenosols developed from sand, Luvisols developed from loamy sand or sandy loam, and Luvisols or Ca... ... Repository: BDPA Publication year: 2022
Chemical functionalisation of actived charcoal - Reproducing the Terra Preta de Índios organic matter model. Author(s): LINHARES, C. R.; LEMKE, J.; AMARAL, N.; AUCCAISE, R.; NOVOTNY, E. H. erras Pretas de Índios are anthropogenic soils found in the Amazon which have high carbon content, high fertility and high resilience. These characteristics are due to the pyrogenic character of their... ... Repository: BDPA Publication year: 2010
Towards semantic knowledge maps applications: modelling the ontological nature of data and information governance in a R&D organization. Author(s): PIEROZZI JUNIOR, I.; BERTIN, P. R. B.; MACHADO, C. R. de L.; SILVA, A. R. da In organizational management, it is highly recommended that data and information be adequately prepared to match the knowledge needed to be used in decision-making processes. However, faced with the p... ... Repository: BDPA Publication year: 2018
Modeling organic carbon dynamics under no-tillage and plowed systems in tropical soils of Brazil using CQESTR. Author(s): LEITE, L. F. C.; DORAISWAMY, P. C.; CAUSARANO, H. J.; GOLLANY, H. T.; MILAK, S.; MENDONÇA, E. S. Repository: BDPA Publication year: 2009

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