24 documents found, page 1 of 3

Legado de informação de solos e novas tecnologias na antevisão de delimitação d...

O conceito de terroir em viticultura associa-se à variação de fatores ambientais que influenciam o comportamento da vinha e maturação das uvas. Em especial, o solo afeta a variação espacial de recursos (e.g. água e nutrientes). Os avanços tecnológicos, como a tecnologia computacional, permitem estudar em detalhe o ambiente, mormente a variabilidade espacial do solo e do relevo. Numa área para instalação de uma ...

Ateliês e tutoriais

Assessing the contribution of ECa and NDVI in the delineation of management zon...

Precision fertilization implies the need to identify the variability of soil fertility, which is costly and time-consuming. Remotely measured data can be a solution. Using this strategy, a study was conducted, in a vineyard, to delineate different management zones using two indicators: apparent soil electrical conductivity (ECa) and normalized difference vegetation index (NDVI). To understand the contribution o...

Foram meus alunos - os meus últimos alunos

Mechanical pruning and soil organic amending in two terroirs. Effects on wine c...

The knowledge about the interaction between mechanical pruning and soil organic amending is still scarce. This study aimed to examine the effects of the interaction between these two practices on wine quality. Syrah grapes from two trial fields in Portugal subjected to two different pruning systems (mechanical pruning; hand spur pruning) and five different organic amendment treatments (control, biochar, municip...

Mechanical pruning and soil organic amendments in vineyards of Syrah: effects o...

The interaction of mechanized pruning systems and soil organic amendment can affect vine vegetative and reproductive growth. However, since organic amendments supply several mineral elements, namely heavy metals, this study aimed to understand the effects of the interaction between these two practices on the mineral composition of wine. Two field trials were implemented in ‘Syrah’ vineyards in two Portuguese wi...

Mechanical pruning and soil organic amendments in vineyards of Syrah: effects o...

Aim: The interaction of mechanized pruning systems and soil organic amendment can increase vine productivity. However, since the increase in p roductivity may affect grape composition, this study aimed to understand the effects of the interaction between these two practices. Methods and materials: Two field trials were implemented in Shiraz vineyards in two different wine regions. Mechanical hedge pruning was c...

Ateliês e tutoriais: reflexões sobre o ensino da arte

Em 1994 concorri a um lugar de assistente estagiário na Faculdade de Belas-Artes da Universidade de Lisboa. A 4 de Janeiro do ano imediato assumi o cargo. Jubilei-me como professor associado no dia 2 de Novembro de 2020. É da reflexão ocorrida ao longo desses quase vinte e seis anos de lecionação que dou conta neste livro. Anos apaixonantes, de intensa dedicação ao ensino, que me mudaram como pessoa, como profe...

Mechanical pruning and soil fertilization with distinct organic amendments in v...

The effects of fully mechanized pruning systems on physiology, vigor and yield of grapevines have been studied for more than forty years and are an interesting way to reduce production costs. Organic amending of vineyard soil is a way to increase vine productivity. Thus, this study aims to understand the effects of the interaction between these two practices, on vine growth and productivity. Two trial fields we...

A (im)permanência do gesto