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A nonpaprametric approach to evaluate the impact of contextual variables on the agricultural research efficiency in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G. In this paper we measure technical efficiency for each of Embrapa (Brazilian Agricultural Research Corporation) research centers. We model DEA efficiency as a function of contextual variables: revenue... ... Repository: BDPA Publication year: 2011
Genetic divergence in conilon coffee revealed by RAPD markers. Author(s): FERRAO, M. A. G.; FONSECA, A. F. A. da; FERRÃO, R. G.; BARBOSA, W. M.; SOUZA, E. M. R. This study aimed to evaluate the genetic variability of 49 Coffea canephora clones of the breeding program of the Capixaba Institute of Research, Technical Assistance and Rural Extension (Incaper) bas... ... Repository: BDPA Publication year: 2009
Repeatability of morpho-agronomic characters of Theobroma grandiflorum fruits. Author(s): ALCOFARADO, A. T. W.; PEDROZO, C. A.; MAYER, M. M.; LIMA, H. E. de Repository: BDPA Publication year: 2019
Costs of ecological restoration in Brazil. Author(s): BENINI, R. de M.; LENTI, F. E. B.; TYMUS, J. R. C.; SILVA, A. P. M. da; ISERNHAGEN, I. Aiming to subsidize actions and policies for the development of large-scale restoration in Brazil, the Institute for Applied EconomicResearch and The Nature Conservancy, started an important study to... ... Repository: BDPA Publication year: 2017
Exploring cause and effect relationships of soil fertility on corn yield variability. Author(s): COELHO, A. M.; DORAM, J. W.; SCHEPERS, J. S. In an experimenl conducted 10 asses lhe potencial causes of corn yield variabilily, the variation of phosphorus (P) and manganese (Mn), accounted for 79% of the variability in grain yield. Based on yi... ... Repository: BDPA Publication year: 2007
Spatial variability of soil fertility in an integrated crop livestock forest system. Author(s): BERNARDI, A. C. de C.; PEZZOPANE, J. R. M.; ESTEVES, S. N.; PEDROSO, A. de F.; ALVES, T. C.; OLIVEIRA, P. P. A. Repository: BDPA Publication year: 2015
A parametric approach for evaluating the technical efficiency of the brazilian agricultural sector. Author(s): SOUZA, G. da S. e; GOMES, E. G.; GAZZOLA, R.; WANDER, A. E.; SOUZA, R. da S. In this study we assessed the technical efficiency of the 27 Brazilian states in the years 1995/96 and 2006. The ata on land and labor were otained from the agricultural census of the two considered p... ... Repository: BDPA Publication year: 2009
Using stochastic frontier approach to assess technical efficiency in Brazilian agriculture. Author(s): SOUZA, G. da S. e; WANDER, A. E.; GOMES, E. G.; GAZZOLA, R. Repository: BDPA Publication year: 2009
Variability of Myrciaria dubia genotypes (Myrtaceae) in native populations of Roraima state. Author(s): SOUZA, C. G.; PAIVA-RODRIGUES, R. M. S.; BARDALES-LOZANO, R. M.; CHAGAS, E. A.; GRANJA, F. Camu-camu, Myrciaria dubia (Myrtaceae) is a native species of the Amazon Rainforest that has been attracting attention worldwide and arousing great interest in the food and pharmacological industries... ... Repository: BDPA Publication year: 2020
Repetibility of the yield traits of Brazil nut cultivated in Roraima. Author(s): PEDROZO, C. A.; ALCOFORADO, A. T. W.; MAYER, M. M.; SANTOS, R. F. dos; PESSONI, L. A. The objective of this study was to estimate the spatial repeatability coefficients of Bertholletia excelsa fruits and nuts using different statistical methods, as well as to define the minimum number... ... Repository: BDPA Publication year: 2021

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