The adoption by farmers of Good Agrarian Practices (GAP), that favouring the environment and assure food quality and safety, is being a frequent fact. Considering the plastic covered horticulture, these kind of practices can be of different nature: use of organic fertiliser, made of crops rotations, use of recyclable plastic as greenhouse cover, good management of organic residuals (use of containers), recycling of plastic containers, etc. This paper, wich try to analyse the adoption of GAP by protected vegetable growers, is based on a survey carried out to 114 farmers in the southeast coastline of Spain, asking for the level of adoption of a set of GAP. From the information gathered on the suvey, an aggregated index of adoption has been performed, and the relationship between this index and some structural and managerial characteristics of the greenhouses, and some sociocultural variables of the growers (age, study, agrarian formation, etc) has been analysed, trying to identify factors related to adoption of GAP, which could probably help to design strategies for the increase of the level of GAP adoption in the system.