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| Brito, L Miguel; Reis, Mário; Mourão, Isabel; Coutinho, João. |
| The physical and chemical characteristics of composts of invasive Acacia longifolia and Acacia melanoxylon shrubs were evaluated to identify compost limitations as a substrate component. The bulk density was <0.4 g cm-3 and the total pore space was >85% of the total volume. Air capacity, the easily available water and buffering capacity were also within acceptable recommended values for horticultural substrates. With increased composting time the physical characteristics of the composts improved, but the same was not true for chemical characteristics. It is recommended to use these acacia composts in mixtures with peat which increases the content of organic matter and the C/N ratio, and decreases the pH and the electrical conductivity, of the final... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring; Nutrient turnover; Biodiversity and ecosystem services. |
| Ano: 2014 |
URL: http://orgprints.org/23032/1/23032%20Brito_MM.pdf |
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| Mourão, Isabel; Monteiro, Ana Teresa; Gonçalves, Maria Custódia; Rodrigues, Raul; Brito, L Miguel. |
| The social and therapeutic horticultural programmes within health facilities, social services or vocational training, aim to contribute to the clients or trainees wellbeing and improvement of their physical, mental and emotional conditions. Integrated in the wider concept of social agriculture, these programmes are developing rapidly all over the world, as in Portugal. In this context the present study aimed to provide an insight on the benefits of organic horticulture professional training within young people with mental disorders. The Training Course in Organic Farming and Gardening (TCOFG) started in 1991, in the Professional Training Centre of the Association of Parents and Friends of Children with Disabilities, in Barcelos, Portugal. The target... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Social aspects; Policy environments and social economy. |
| Ano: 2014 |
URL: http://orgprints.org/24004/1/24004-IMourao_MM.pdf |
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| Brito, L Miguel; Sampaio, Áurea; Pinto, Rui; Mourão, Isabel; Coutinho, João. |
| The influence of organic and phosphate fertilization, and root mycorrhization, in organic lettuce production, was assessed with factorial treatment combinations of: soil type (SOP – soil from organic and SCP – soil from conventional production) and organic fertilizer (0, 2 and 4 t ha-1) in the first trial; mycorrhizal inoculation (mycorrhized and non-mycorrhized plants) and Gafsa phosphate (0, 100 and 200 kg P2O5 ha-1) in the second. Lettuce yield decreased in the SCP with the application of increasing rates of organic fertilizer due to the very high electrical conductivity (50.1 dS m-1) and lack of maturation of this fertilizer. However, the harmful effects of the organic fertilizer were minimized in the SOP. The application of increasing rates of Gafsa... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring; Nutrient turnover; Vegetables; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/23031/1/23031%20Brito_MM.pdf |
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| Mourão, Isabel; Teixeira, Joana; Brito, L Miguel; Ferreira, Maria Elvira; Moura, Maria Luisa. |
| This study aimed to evaluate the effects on tomato yield and quality of three pruning systems (2, 3 and 4 stems) of grafted plants (cv. Vinicio and Multifort) used to prevent the incidence of soil diseases. It was also investigated if the two stems from nodes of the cotyledon leaves improved crop performance compared to the two stems from the first true leaves nodes. The experiment was conducted in the spring/summer season, under greenhouse conditions at NW Portugal, with a randomized block design with 3 blocks and the four pruning crop treatments. Total yield was significantly increased for the double-stem tomato crop, without significant differences between both stem nodes position (26.5 kg m-2), compared to plants with 3 and 4 stems (19.5 kg m-2). The... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Vegetables; Greenhouses and coverings. |
| Ano: 2014 |
URL: http://orgprints.org/24059/1/24059-IMourao_MM.pdf |
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