Banca de DEFESA: WÍLLIAM SOUZA NEIMOG

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : WÍLLIAM SOUZA NEIMOG
DATE: 31/03/2025
TIME: 09:00
LOCAL: Sala do PGCA
TITLE:

Organic fertilizers: alternative formulations with cocoa shells and agro-industrial residues

KEY WORDS:

Composting. Agro-industrial waste. Sustainability

PAGES: 50
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:

The research stems from the need to find efficient solutions for managing agro-industrial waste, especially in the state of Rondonia, where crops such as cocoa, cassava, cupuacu, sugarcane, and Brazil nuts generate large amounts of waste. Cocoa husks, for example, can represent up to 80% of the total weight of the fruit, posing a significant environmental liability when discarded improperly. Composting emerges as an effective strategy to transform this waste into organic fertilizers, promoting agricultural sustainability, reducing dependency on chemical fertilizers, and creating business opportunities.

This research aimed to work on alternative formulations of organic products by training Agronomy students and evaluating the chemical properties to ensure compliance with the standards of Normative Instruction No. 61/2020. The study was conducted at the Federal Institute of Rondonia (IFRO), Ji-Parana campus. Waste from cocoa husks, cassava, cupuacu, Brazil nuts, and sugarcane bagasse was used as a carbon source, combined with elephant grass (Pennisetum purpureum) as a nitrogen source, following a C/N ratio of 2:1. Finally, more than 30 students were trained to produce organic compost using plant waste. The best-performing compost was the one formulated with cocoa husks + sugarcane bagasse + elephant grass.

COMMITTEE MEMBERS:
Presidente - 1212049 - SYLVIANE BECK RIBEIRO
Interna - 3309400 - EMMANOELLA COSTA GUARANA ARAUJO
Externa ao Programa - 659.670.382-72 - ANDREZA PEREIRA MENDONÇA
Externa à Instituição - MARIA ELESSANDRA RODRIGUES ARAUJO