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A mathematical model to estimate the volume of grey water of pesticide mixtures. Author(s): PARAIBA, L. C.; PAZIANOTTO, R. A. A.; LUIZ, A. J. B.; MAIA, A. de H. N.; JONSSON, C. M. The usual method to calculate grey water footprint does not take into account the volume of water required to dilute concentrations of pesticide mixtures in freshwater and it also depends on maximum c... ... Repository: BDPA Publication year: 2014
Truncated beta nonlinear regression models for soil-water characteristic curves estimation. Author(s): PARAÍBA, C. C. M.; DINIZ, C. A. R.; MAIA, A. de H. N.; RODRIGUES, L. N. We propose an alternative approach for estimating soil-water characteristic curves based on truncated beta nonlinear regression models. Thus, assuming that the response variable follows a truncated be... ... Repository: BDPA Publication year: 2013
Pedotransfer functions to estimate water retention parameters of soils in notheastern Brazil. Author(s): BARROS, A. H. C.; LIER, Q. de J. van; MAIA, A. de H. N.; SCARPARE, F. V. Pedotransfer functions (PTF) were developed to estimate the parameters (a, n, qr and qs) of the van Genuchten model (1980) to describe soil water retention curves. The data came from various sources,... ... Repository: BDPA Publication year: 2013
Leaf water potential of coffee estimated by landsat-8 images. Author(s): MACIEL, D. A.; SILVA, V. A.; ALVES, H. M. R.; VOLPATO, M. M. L.; BARBOSA, J. P. R. A. de; SOUZA, V. C. O.; SANTOS, M. O.; SILVEIRA, H. R. DE O.; DANTAS, M. F.; FREITAS, A. F. de; SANTOS, J. O. DOS Traditionally, water conditions of coffee areas are monitored by measuring the leaf water potential throughout a pressure pump. However, there is a demand for the development of technologies that can... ... Repository: BDPA Publication year: 2020
Estimating MCC system dryness index using the vineyard water indicator. Author(s): CONCEIÇÃO, M. A. F.; SOUZA, R. T. de; TONIETTO, J. The Geoviticulture Multicriteria Climatic Classification System (MCC System) has been employed in different regions of the world for grapevine zoning studies. The Dryness Index (DI) is one of the thre... ... Repository: BDPA Publication year: 2016
Pedotransfer functions to estimate water retention parameters of soils in northeastern Brazil. Author(s): BARROS, A. H. C.; JONG VAN LIER, Q. de; MAIA, A. de H. N.; SCARPARE, F. V. Abstract: Pedotransfer functions (PTF) were developed to estimate the parameters of the van Genuchten model (1980) to describe soil water retention curves. The data came from various sources, mainly f... ... Repository: BDPA Publication year: 2013
A mathematical model to estimate the volume of grey water of pesticide mixtures. Author(s): PARAIBA, L. C.; PAZIANOTTO, R. A. A.; LUIZ, A. J. B.; MAIA, A. de H. N.; JONSSON, C. M. Repository: BDPA Publication year: 2012
Estimation of climatological water deficit in an experimental watershed in the brazilian cerrado. Author(s): GOTARDO, J. T.; RODRIGUES, L. N.; GOMES, B. M. ABSTRACT: This study aimed to estimate the probability of climatological water deficit in an experimental watershed in the Cerrado biome, located in the central plateau of Brazil. For that, it was use... ... Repository: BDPA Publication year: 2016
Ground penetrating radar non-invasively positions an underground dam and estimates its water reservoir shape and volume. Author(s): VASQUES, G. de M.; RODRIGUES, H. M.; HUBER, E.; TAVARES, S. R. de L.; MARQUES, F. A.; SILVA, M. S. L. da The objectives are to use ground penetrating radar (GPR) to: (a) find a suitable length and location for a future underground dam; and (b) model the shape and estimate the volume of its water reservoi... ... Repository: BDPA Publication year: 2022
Comparison of water consumption estimates for tropical and winter forages by FDR probes and weighing lysimeters. Author(s): SANCHES, A. C.; SOUZA, D. P. de; JESUS, F. L. F. de; MENDONÇA, F. C.; GOMES, E. P.; PEZZOPANE, J. R. M. Soil moisture determination is essential for a good use of available water resources. In this regard, the use of frequency domain reflectometry (FDR) probes has as advantages mobility and practicality... ... Repository: BDPA Publication year: 2019

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