Santos, José Manuel de LimaDuarte, Maria Filomena RamosMalheiro, Maria da Piedade Rocheta Rangel de Meneses2014-11-042014-11-042014Malheiro, M.P.R.R.M. - Estudo preliminar dos benefícios económicos e ambientais da expansão da produção e área de feijão (Phaseolus vulgaris L.) e grão-de-bico (Cicer arietinum L.) em Portugal. Lisboa: ISA, 2014, 54 p.http://hdl.handle.net/10400.5/7400Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaThrough this work it was meant to analyse grain legumes evolution, confirming their role in agriculture. Its study is associated to fundamental issues related with sustainable agriculture concerns, combined with environmental issues and also the role of this sector on Portuguese economy. Grain legumes have always been associated to human consumption and animal nutrition, besides its particularity of N2 -fixation, being considered good cultural precedents. The main goal was to stimulate both economic and environmental benefits of beans and grain legumes productions and area expansion. For this analysis, and in order to achieve the main goal some research data, which could explain both bean (Phaseolus vulgaris L.) and chickpea (Cicer arietinum L.) sectors evolution in portugues market, were collected; in addition, experimental tests in where these same legumes were included were selected. So the objective was fulfilled and, on a national scope, was predicted how much can be saved on fertilizer, which can be expressed by 22 euros per hectare, and, on an environmental scope, about 9,6 kg of leached Nitrogen/ ha can be reduced. In the same way the net return of both products can be expressed by 88 million euros through the increase of productionporgrain legumesPhaseolus vulgarisCicer arietinumN2 fixationenvironmenteconomymaster thesis201847116