Banca de DEFESA: EDUARDO LUCAS JORGE SERAPIÃO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : EDUARDO LUCAS JORGE SERAPIÃO
DATE: 31/03/2025
TIME: 09:00
LOCAL: meet.google.com/hfx-tbiv-dsq
TITLE:

DEVELOPMENT OF A MOBILE APPLICATION FOR CALCULATING FERTILIZATION AND LIMING PARAMETERS FOR AMAZONIAN ROBUST COFFEE

KEY WORDS:

Geographical Identification (GI) of Rondônia Forests. Rural Extension. Technical Courses. Technologies for Learning.

PAGES: 100
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:

The state of Rondonia is the largest coffee producer in the North region and is undergoing a modernization process in its coffee culture. The contributions of research by the Brazilian Agricultural Research Corporation (EMBRAPA) in the enhancement of Amazonian Robusta coffees have reflected in the evolution of the sensory quality of fine canephora coffees, associated with the technological advancement of crop management. To contribute to this modernization process, this study aimed to develop a mobile application to assist students, rural producers, and agrarian professionals in interpreting soil analyses and in making fertilization and liming recommendations for Amazonian Robusta coffee plantations. Data collection was carried out through a questionnaire administered to 33 students to understand their profiles, knowledge about soil management, and difficulties in assisting rural producers. Interviews were also conducted with 21 family farmers from the Geographical Identification (GI) region of Matas de Rondonia and with 10 agrarian professionals to gather socioeconomic profiles and access to technological resources for soil management in Robusta coffee plantations. The data were analyzed using descriptive statistics, chi-square tests, and Pearson correlation. The majority of the students reside in urban areas (82%), in the municipality of Cacoal (73%), and attended public schools (76%). Regarding soil management, 71.5% of the students reported difficulties in calculating fertilization and liming, and 57.6% indicated they would have trouble assisting a rural producer. All students were willing to use an application for fertilization and liming calculations. Interviews with 21 family coffee producers revealed that most are male, with an average age of 39 years, completed secondary education, and a family income between 1 and 5 minimum wages. All producers own their land, with coffee cultivation areas ranging from 0.63 ha to 11.25 ha. They all conduct soil analysis, fertilization, and liming with technical assistance. The producers prefer a simple application with accessible vocabulary that interprets soil analysis and indicates the quantities of inputs. Of the 10 agrarian professionals interviewed, including nine agronomists and one agronomy student, all provide technical assistance to coffee producers. Regarding the application, the professionals highlighted the need for simplicity, accuracy in interpretation based on local realities, and specific recommendations for each phenological stage of the crop. Based on the investigations, a mobile application was developed for analyzing fertilization and liming parameters specific to the cultivation of Amazonian Robusta coffees, following EMBRAPA's guidelines. The application was positively evaluated by 17 students, who found it practical and simple. Thus, the application will equip students, bringing them closer to local producers and facilitating the practical application of theoretical knowledge in coffee cultivation, assisting in implementing fertilization and liming recommendations.

COMMITTEE MEMBERS:
Interna - 1865817 - MARIA ROSANGELA SOARES
Externo ao Programa - 1658780 - EMANUEL FERNANDO MAIA DE SOUZA - UNIRExterno à Instituição - CLAYTON FERRAZ ANDRADE - IFRO
Externa à Instituição - LUZIA DA SILVA LOURENCO - UNESP