During the 1st Iberian meeting on Agro-ecological research that took place on 22-23 November 2018 at the University Of Évora (Portugal), the results have been presented. The aim was to establish basis for sustainable agriculture. Towards a zero inorganic waste production in greenhouses horticulture sector, south of spain have challenges for sustainable bioeconomy farming systems.

Agrifood waste is a major economic, social and environmental concern, and strategies towards its reduction are being developed both at global and European levels. In the last ten years, bioeconomy strategies and policy-related bioeconomy initiatives have been developed all over the world. Some of them are currently in the process of translation into specific actions. In January 2016 Spain launched its own strategy aiming at boosting a bioeconomy based on the sustainable and efficient production and use of biological resources. In such framework the present work, after analysing the main economic and production structure of horticultural greenhouses of Almería (Andalusia, South of Spain), aims to provide an overview of the main challenges and criticalities in this sector. After that, we analysed data and statistics on amount/volume and type of inorganic waste produced, elaborating an inventory of components and materials used in the processing and actual procedure of use and disposal (waste flows analysis). Framed within the REINWASTE project, we finally designed the most innovative "zero waste” solutions to favour the adoption of new approach for implementing a bioeconomy strategies in greenhouses horticulture sector of Almería (Spain).