Banca de DEFESA: ABEL NERO DE AZEVEDO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ABEL NERO DE AZEVEDO
DATE: 26/08/2026
TIME: 13:00
LOCAL: Departamento de Engenharia UFRRJ
TITLE:

Agronomic Performance of Eggplant in Pots with Organic Substrate Under Fertigation with Wastewater from Dairy Cattle Farming

KEY WORDS:

Solanum melongena L. Protected cultivation. Water efficiency. Sustainability; water reuse; horticulture; sustainability

PAGES: 32
BIG AREA: Ciências Agrárias
AREA: Engenharia Agrícola
SUBÁREA: Engenharia de Água e Solo
SPECIALTY: Irrigação e Drenagem
SUMMARY:

Dairy farming generates large volumes of wastewater that, when improperly disposed of, may cause significant environmental impacts. The reuse of dairy cattle wastewater (DCW) for fertigation has emerged as a promising and sustainable alternative, promoting the efficient use of water and nutrients in agricultural production. This study aimed to evaluate the agronomic performance of Welsh onion (Allium fistulosum L.) and parsley (Petroselinum crispum [Mill.] Nyman) grown in pots under fertigation with different proportions of DCW. The experiment was conducted under protected conditions at the Agroecological Farm of Km 47, located in Seropédica, Rio de Janeiro, Brazil, over two experimental cycles for each crop. A completely randomized design was adopted, consisting of four treatments corresponding to the proportions of 300:0, 200:100, 100:200, and 0:300 mL of DCW and tap water, with ten replicates per treatment. Growth, development, and biomass production variables were evaluated. The data were subjected to the Shapiro–Wilk normality test, analysis of variance (ANOVA), or the Kruskal–Wallis test, according to the statistical assumptions, and treatment means were compared using the Scott–Knott or Dunn test at the 5% significance level. The results showed that the application of different proportions of DCW did not produce statistically significant differences for most of the variables evaluated in either crop or experimental cycle. However, a trend toward greater plant growth and biomass production was observed in treatments receiving higher proportions of wastewater, with no evidence of phytotoxic effects or reductions in agronomic performance. These findings indicate that treated dairy cattle wastewater can be used as an alternative source of water and nutrients for the cultivation of Welsh onion and parsley, contributing to wastewater reuse, reducing the demand for potable water, and promoting more sustainable agricultural production systems.

COMMITTEE MEMBERS:
Presidente - 2353141 - LEONARDO DUARTE BATISTA DA SILVA
Externo à Instituição - EVANDRO FRANCISCO FERREIRA DA SILVA SOUZA
Externo à Instituição - LEONARDO DA SILVA HAMACHER - UFF