Banca de DEFESA: LEONARDO LOPES DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : LEONARDO LOPES DA SILVA
DATA : 28/06/2018
HORA: 09:00
LOCAL: CFAAO
TÍTULO:

An Application on Tropical Legumes for Green Fertilization

PALAVRAS-CHAVES:

Soil cover plants, Organic Agriculture, Rural Extension, Information Systems.

 

PÁGINAS: 98
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Ciência do Solo
ESPECIALIDADE: Fertilidade do Solo e Adubação
RESUMO:

Considered a multifunctional practice of importance for the ecological management of the soil, the green manure can add contributions to the conventional agricultural production systems, as for the organic ones, or to those in the agroecological transition. Considering that there is a set of knowledge generated dispersed in different formats of dissemination of information, it is timely an analysis and systematization of research results and the search for vehicles of dissemination of these in a fast, concise and accessible. In this sense, the objective of this work consisted of systematizing, based on a bibliographical research based on scientific bases, information on 25 species of tropical legumes used for green manuring, in order to integrate an application focused on mobile devices. Thus, it is sought to provide a technological innovation that facilitates and reduces the time necessary for consultations regarding this practice by subsidizing decision-making. The application was developed by the UFRRJ's Tutorial-Information Systems Education Program (PET-SI) to serve a language close to predefined user profiles, considering students and professionals in Agrarian Sciences and farmers. Among the main results, it is possible to highlight the accessibility to different user profiles of legume species for green manure, with emphasis on the 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. Important knowledge gaps have been identified, mainly for canava gladiata. In addition, the information available on the shrub species Crotalaria grahamiana, Crotalaria micans, Flemingia macrophylla, Tephrosia vogelli and Tephrosia sinapou under Brazilian soil and climatic conditions is scarce, which points to the need to carry out future research work, that these shrub species are of great potential for use in different arrangements of productive farming systems. Simultaneously, a questionnaire was applied with potential users within the profile of professionals in Agricultural Sciences containing the complete description of two legume species. It can be reported that 97% of the interviewees already knew the technique of green manuring and 53% highlighted the access to information as the main obstacle to the dissemination of this practice. Regarding application features, 80% had no difficulty installing it on the "smartphone"; 54% emphasized the quality of the technical content; and 97% rated the application as useful for both beginners and those who already use green manure. Considering the proposed objective, it became possible to build and make available the application, compatible with mobile devices, Tropical Legumes for Green Fertilization.

MEMBROS DA BANCA:
Presidente - 785.371.857-87 - JOSÉ GUILHERME MARINHO GUERRA - EMBRAPA
Externo ao Programa - 980811 - ROBSON AMANCIO
Externo à Instituição - GUILHERME DE FREITAS EWALD STRAUCH - UFRRJ