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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
Water disappearance and manure production at growing-finishing commercial pig farms in Brazil a simplified model approach. Author(s): TAVARES, J. M. R.; LOPES, J. da C.; BELLI FILHO, P.; COLDEBELLA, A.; OLIVEIRA, P. A. V. de Abstract: The aim of this study was to fit water disappearance and manure production curves at growing?finishing commercial pig farms and compare the curve that best describes the evolution of paramet... ... Repository: BDPA Publication year: 2023
Modeling of waste outputs in the aquatic environment from a commercial cage farm under neotropical climate conditions. Author(s): BUENO, G.; BERNAL, F.; ROUBACH, R.; SKIPPER-HORTON, J. S.; SAMPAIO, F.; FIALHO, N.; BUREAU, D. Abstract: The present study used a bioenergetics modeling approach to estimate the solid and dissolved waste outputs of a Nile tilapia Oreochromis niloticus net-cage farm. H... ... Repository: BDPA Publication year: 2023
Modeling biomass flows at the farm level: a discussion support tool for farmers. Author(s): ANDRIEU, N.; NOGUEIRA, D. M. Many simulation models that are used to assess the impact of mixed farming systems have a high level of complexity that is not suitable for teaching farmers about the impacts of their practices. Repository: BDPA Publication year: 2010
A spatially distributed hydroeconomic model to assess the effects of drought on land use, farm profits, and agricultural employment. Author(s): MANETA, M. P.; TORRES, M. O.; WALLENDER, W. W.; VOSTI, S.; HOWITT, R.; RODRIGUES, L. N.; BASSOI, L. H.; PANDAY. S. In this paper a high-resolution linked hydroeconomic model is demonstrated for drought conditions in a Brazilian river basin. The economic model of agriculture includes 13 decision variables that can... ... Repository: BDPA Publication year: 2009
Ex-post clustering of brazilian beef cattle farms using soms and cross-evaluation Dea models. Author(s): MELLO, J. C. C. B. S. de; GOMES, E. G.; MEZA, L. A.; BIONDI NETO, L.; ABREU, U. G. P. de; CARVALHO, T. B. de; ZEN, S. de Repository: BDPA Publication year: 2012
Performance of the Manure-DNDC model in estimating soil organic carbon stocks of (sub)tropical soils under different pedoclimatic zones and farming systems. Author(s): ALHO, C. F. B. V.; FREITAS, A. C. R. de; SANTOS, F. C. dos; SILVEIRA, M. C. T. da; SANTI, A.; NASCIMENTO, A. F. do; ALVES, B. J. R.; MADARI, B. E. Repository: BDPA Publication year: 2023
Validação do sub-modelo de simulação de crescimento de forrageiras do IFSM (Integrated Farm System Model), com dados de Cynodon spp. Author(s): ASSIS, A. G. de; CORSON, M.; PACIULLO, D. S. C.; LOPES, F. C. F.; ROTZ, C. A. Um sub-modelo representando o crescimento e o acúmulo de matéria seca em um modelo de simulação de fazenda desenvolvido para as condições de clima temperado está sendo estendido para forrageiras tropi... ... Repository: BDPA Publication year: 2006
The use of linear programming to evaluate the impact of credit for investments in small goat farms. Author(s): MEDEIROS, H. R. de; GUIMARÃES, V. P.; HOLANDA JUNIOR, E. V. Abstract: The PRONAF is a governmental program that subsidies the credit for investment to smallholder farming and improves the social development in Brazil. This research was carried out to evaluate... ... Repository: BDPA Publication year: 2009
Simulation of scenario for dairy production family farming in Minas Gerais State. Author(s): LEITE, J. L. B.; RESENDE, H. Repository: BDPA Publication year: 2007

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