Socialização de informações sobre leguminosas tropicais utilizadas para a adubação verde a partir de um aplicativo para dispositivo móvel

Abstract

Considered as a importante multifunctional practice for soil management, green manuring can aggregate strategic contributions in soil conservation aspect, for both conventional and organic farming systems, or in agroecological transition. Considering that there is a set of knowledge dispersed in different formats of information, it makes opportune the analysis and systematization of research results, also the search for vehicles of dissemination in a fast, concise and accessible way. In this context, this work consisted to collect, analyze and systematize based on a bibliographical research based on scientific bases, information on 25 species of tropical legumes used in green manure, in order to integrate an application aimed at mobile devices.. Thus, it is sought to provide a technological innovation that facilitates and reduces the necessary time for consultations about this practice by subsidizing decision-making. The application was developed together with the UFRRJ's Tutorial-Information Systems Education Program (PET-SI) to find an adequate language to the predefined user profiles, considering farmers, students and professionals of Agricultural Sciences. Among the main results we can highlight the accessibility to different user profiles of legume species for green manure, with emphasis on attributes related to botanical, agronomic and adaptation to edaphoclimatic conditions. Photographic images were also available with details of the root system, the root nodules, and the aerial part of leaves, flowers, pods and seeds. Knowledge gaps have been identified, mainly for the species Canavalia gladiata. In addition, the information available on the shrub species Crotalaria grahamiana, Crotalaria micans, Flemingia macrophylla, Tephrosia vogelli and Tephrosia sinapou, cultivated under Brazilian edaphoclimatic conditions, which points to the need for future research Works, seeing that these shrub species are of great potential for use in different arrangements of productive farming systems. Simultaneously, a questionnaire was applied to potential users within the profile of Agricultural Sciences professionals, containing the complete description of two legume species. It can be reported that 97% of the interviewees already knew the green manuring techniques, and 53% emphasized that the lack of access to this informations are the main limiting factor to the dissemination of this technique. Regarding application features, 80% had no difficulty installing it on "smartphone"; 54% emphasized the quality of the technical content; and 97 % evaluated the application as useful both for those who want to start or those who already use this technique. Considering the proposed objective, it became possible to build an application called Tropical Legumes for Green Fertilization, and make it compatible with mobile devices.