43 documents found, page 1 of 5
Estudo do efeito da interação entre duas espécies de Pseudomonas e Glomus irani...
Alvarenga, Paula; Esquível, Glória; Ribeiro, Henrique; Pereira, Madalena; Fleurot, Eloïse; Braguês, Margarida; Nogales, AmaiaO eucalipto (Eucalyptus globulus Labill.) ocupa uma extensa área da exploração florestal em Portugal, sendo utilizado, principalmente, na indústria da produção de pasta e papel. De entre os desafios que a sua exploração enfrenta, contam-se os da necessidade de reduzir o uso de fertilizantes minerais, sem perda de produtividade, e preservando a fertilidade e a biodiversidade do solo. Sendo conhecidos os benefíci...
Evaluation of rice straw and eucalyptus leaves mulching for weed management in ...
Losana, Umberto; Araújo, Solange; Ribeiro, Henrique; Aguiar, Francisca ConstançaVineyards are characteristic of Mediterranean Europe, holding a large and diverse number of plants that frequently need to be controlled due to the competition with the vines. The main objective of this study was to evaluate the weed-controlling potential of two organic mulches (0,25 cm rice straw, RS, 0,15 cm eucalyptus leaves, EL), for which chemical analysis was carried out. The experimental trial took place...
Analysis of Petiole Sap Nutrients Using Rapid and Standard Methods and Its Rela...
Mota, Mariana; Martins, M.; Sprey, Layanne; Maurício, Anabela; Rosa, Cristina; Faria, João; Martins, Miguel; Sousa, Miguel L. de; Santos, RicardoCurrently, fertilization decisions in apple orchards are based on soil and leaf analyses while the leaf material is sampled after the growing season, usually in June–July (90–110 days after full bloom). This approach is inefficient, as the information becomes available later than the growing season and is therefore only useful in supporting fertilization decisions for the next year, not the current one. To esta...
Efeitos da utilização de chorume de suíno bruto ou tratado na substituição da a...
Alvarenga, Paula; Araújo, Miguel; Prado, Joana; Ribeiro, Henrique; Fangueiro, DavidA valorização agrícola de efluentes pecuários é considerada prioritária nas estratégias preconizadas na legislação (Portaria nº 79/2022). Porém, é importante evidenciar os méritos dessa estratégia em termos agrícolas, i.e., que a fertilização com materiais orgânicos pode ser feita sem perdas de produtividade e sem riscos para o solo, mas, também, criando soluções para reduzir os impactos ambientais (perdas de n...
Evaluation of the fertilizer potential of Chlorella vulgaris and Scenedesmus ob...
Alvarenga, Paula; Martins, Marta; Ribeiro, Henrique; Mota, Mariana; Guerra, Inês; Cardoso, Helena; Silva, Joana LaranjeiraProducing microalgae with agricultural drainage water (ADW) allows recycling water and nutrients, with the production of a biofertilizer, avoiding receiving waters' contamination. Chlorella vulgaris and Scenedesmus obliquus were cultivated using ADW and standard media supplementation and presented higher productivities, relatively to the control industrial growth medium (using freshwater). Selected strains were...
Development of new preventive strategies for pine pitch canker caused by Fusari...
Fernandes, Luís; Paiva, Diana; Roxo, Ivo; Fernandes, Ana Rita; Ribeiro, Dina; Ribeiro, Henrique; Portugal, AntónioFusarium circinatum is one of the many threats to forests and Pinus nurseries all over the world, being classified as a quarantine organism by several organizations and governing bodies, such as the European and Mediterranean Plant Protection Organization (EPPO) and the European Union (EU), with associated phytosanitary measures in place to prevent its spread through the various means of dispersal. One such mea...
Evaluation of the fertilizer potential of Chlorella vulgaris and Scenedesmus ob...
Alvarenga, Paula; Martins, M.; Ribeiro, Henrique; Mota, M.; Guerra, I.; Cardoso, H.; Silva, J. L.Producing microalgae with agricultural drainage water (ADW) allows recycling water and nutrients, with the produc- tion of a biofertilizer, avoiding receiving waters' contamination. Chlorella vulgaris and Scenedesmus obliquus were culti- vated using ADW and standard media supplementation and presented higher productivities, relatively to the control industrial growth medium (using freshwater). Selected strains ...
Nutrient potential leachability in a sandy soil amended with manure-based ferti...
Prado, Joana; Alvarenga, Paula; Ribeiro, Henrique; Fangueiro, DavidThe application of manure-based fertilisers (MBFs) is considered an important practice for achieving agricultural sustainability. However, the potential losses of nutrients to the environment need to be thoroughly evaluated. This study aimed to assess nutrients’ potential leachability from a sandy soil, fertilised with MBFs produced by mixing manure from one single animal species with N- or P-mineral fertiliser...
Assessment of the agronomic value of manure-based fertilizers
Prado, Joana; Fangueiro, David; Alvarenga, Paula; Ribeiro, HenriqueProducing manure-based fertilizers (MBFs) with specific nutrient ratios is a solution to overpassing the imbalance of nitrogen and phosphorus in manures, and a way to recycle manure’s nutrients, promoting sustainable agricultural practices. Several MBFs with different tailored N:P ratios (0.5:1, 1:1 and 2:1) were produced to determine their agronomic value in a pot experiment with oat (0.5:1 ratio: cattle manur...
Using participatory mapping to Foster Community-Based disaster risk reduction i...
Partidário, Maria; Saad, Guilherme; Monteiro, Margarida B.; Dias, Joana; Martins, Rute; Ramos, Isabel Loupa; Ribeiro, Henrique; Teixeira, MiguelLocal knowledge and communities’ active role in disaster risk areas are recognized in the literature as key conditions to better understand risks, enhance adaptive capacities and foster local resilience. A participatory action research project in forest fire-prone areas in Monchique, Portugal, is aligned with the literature and adopts participatory mapping as a method that can bring evidence to the importance o...