Banca de QUALIFICAÇÃO: WELDES DE SOUSA MENEZES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : WELDES DE SOUSA MENEZES
DATE: 21/08/2024
TIME: 16:00
LOCAL: Auditório Petrini Girardelli - UFPA Campus Altamira
TITLE:

BORATE FERTILIZATION, GROWTH AND PRODUCTION OF COCOA TREE IN AMAZON NITOSOL

KEY WORDS:

Cocoa farming, Production systems, Fertilization, Boron, Amazon

PAGES: 38
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SUMMARY:

The cocoa tree (Theobroma cacao L.), native to the tropical regions of Central and South America, developed in shaded areas, where trees are interspersed, in soil rich in organic matter, providing ideal growth conditions. The cocoa tree has adapted to development over the centuries, with improved cultivation techniques, selection of varieties resistant to diseases and pests, and the expansion of plantations into new areas and new production systems. However, nutrient deficiency can be a significant challenge in this process, where deficiencies in any of the essential nutrients inhibit the cocoa tree from expressing its productive potential, furthermore, the necessary quantities that the plant requires is not yet fully evident. Chemical analysis of soil and leaves is an efficient technique that helps identify nutrient deficiencies and develop an appropriate fertilization plan to correct nutritional deficiencies as needed by the cocoa tree. Given this context, the research is evaluating the vegetative development and productivity of the cocoa tree under different doses of boron applied via soil. The experiment will be conducted in a cocoa crop of the CCN51 variety, with four years of planting, in the municipality of Medicilândia-Pará. The planting experiment will be installed in an arrangement, with 4 randomized blocks (BIC), with 6 treatments and 4 replications, with three plants per replication, making a total of 72 plants evaluated. Fruit harvesting in the field and data collection will be carried out every 21 days. The data obtained from the harvests and soil and leaf analyzes are being tabulated for submission of statistical analysis, followed by each harvest comparing the doses using the Kruskal-Wallis test, when significant for a value < 0.05, the Dunn. All statistical analyzes were performed in R language.

COMMITTEE MEMBERS:
Externo à Instituição - ITALO MARLONE GOMES SAMPAIO - SEDAP
Presidente - 1228204 - MARIO LOPES DA SILVA JUNIOR
Externa à Instituição - SANDRA ANDREA SANTOS DA SILVA - UFPA
Externo à Instituição - YAN NUNES DIAS - ITV