Banca de QUALIFICAÇÃO: LUCIANO SANTOS DE SOUZA NEVES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : LUCIANO SANTOS DE SOUZA NEVES
DATE: 23/05/2025
TIME: 14:00
LOCAL: programa de pós graduação em fitotecnia
TITLE:

LETTUCE SEEDLING PRODUCTION IN GREENPONICS WITH GLIRICIDIA (Gliricidia sepium) AND BATATAIS GRASS (Paspalum notatum).

KEY WORDS:

Sustainability; Alternative Substrates; Seedling Production; Organic Agriculture

 

PAGES: 35
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Produção de Mudas
SUMMARY:

The increasing concern with sustainability in agricultural production, facing population growth and the demand for food, as well as the significant search for fertilization sources, has made the investigation of innovative systems in agriculture increasingly important. This dissertation explores Greenponics, an innovative technique that uses non-composted plant biomass as a substrate and nutrient source for plant cultivation in order to reduce the use of conventional fertilizers. The experiment will be conducted in a protected environment in the area of the Water and Soil Research Group in Agricultural Systems. The work will be arranged in a factorial design (2 x 5 x 2 + 2) in a completely randomized design, with three factors: types of biomasses, doses of these biomasses to compose the substrates, and with and without gypsum on the cover. Additionally, there will be two additional treatments with soil. The biomasses will be of Batatais Grass (Paspalum notatum) and Gliricidia (Fliricidia sepium). The biomass doses in the mixture with soil will be: T1 (Control) (100% Soil), T2 (Control 2) (100% Soil), T3 (100% Paspalum), T4 (20% Soil + 80% Paspalum), T5 (40% Soil + 60% Paspalum), T6 (60% Soil + 40% Paspalum), T7 (80% Soil + 20% Paspalum), T8 (100% Gliricidia), T9 (20% Soil + 80% Gliricidia), T10 (40% Soil + 60% Gliricidia), T11 (60% Soil + 40% Gliricidia), and T12 (80% Soil + 20% Gliricidia). All treatments will be covered with a soil layer, but some will receive a cover with gypsum for the addition of Ca (Calcium). There will also be another control with commercial substrate that will be compared, in a separate analysis from the factorial, with the other treatments using Dunnett's test. The study proposes the agronomic and physiological evaluation of the seedlings, with the analysis of the Nitrate Reductase enzyme activity and Chlorophyll a Fluorescence. The agronomic variables will be: emergence speed index, dry and fresh weights of roots and shoots, height, number of leaves, and soil clod cohesion.

COMMITTEE MEMBERS:
Presidente - 2181674 - LEONARDO OLIVEIRA MEDICI
Interna - 2145575 - ANELISE DIAS
Interno - ***.371.857-** - JOSÉ GUILHERME MARINHO GUERRA - EMBRAPA