Banca de DEFESA: EDUARDO DA COSTA GUIMARÃES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : EDUARDO DA COSTA GUIMARÃES
DATE: 06/09/2022
TIME: 13:30
LOCAL: meet.google.com/icf-qtgb-ftk
TITLE:

Management of weeds for lettuce cultivation in an organic production system

KEY WORDS:

Weed science; weed control; organic agriculture

PAGES: 29
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SPECIALTY: Manejo e Conservação do Solo
SUMMARY:

The dissertation aims to evaluate the effect of several mulching materials on weed suppression. A field experiment will be installed in a small-scale farm which produces organic vegetables, at the city of Petrópolis, Rio de Janeiro state, from November of 2020 to April of 2021. The experimental design will be randomized block design, with 6 treatments and 5 replications. The treatments will be: Mulching with straw of Pennisetum purpureum (T1), Mulching with black polyethylene (T2), Mulching of black polypropylene (T3), Solarization with transparent plastic film (T4), Succession green manuring with sunnhemp (Crotalaria juncea) (T5) and Fallow with weeds as control treatment (T6). This experiment will have two different phases: (a) Soil cover with different treatments; (b) Monitoring of weeds infestation after soil cover period. During the second phase, soil will be cultivated with crisp lettuce. Evaluations will be related to the density, frequency and abundance of weeds observed weekly, and lettuce production, related to weight, number of leaves and diameter of aerial part.

BANKING MEMBERS:
Presidente - ***.232.757-** - JOSÉ ANTONIO AZEVEDO ESPINDOLA - EMBRAPA
Interno - ***.371.857-** - JOSÉ GUILHERME MARINHO GUERRA - EMBRAPA
Externa à Instituição - MARIANE CARVALHO VIDAL