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Intercropping with gramineous plants in nutrient solutions as a tool to optimiz...

Saavedra, Teresa; Pestana, Maribela; Costa, João; Gonçalves, Paula; Fangueiro, David; Silva, José Paulo da; Correia, Pedro José

This study aimed to evaluate the impact of intercropping Brassica oleracea. with three perennial grasses (Poa pratensis L., Lolium perenne L., and Festuca rubra L.) under varying levels of iron (Fe) availability (Fe0, Fe1 and Fe5) in nutrient solutions. The research focused on biomass accumulation, photosynthetic efficiency, root development, nutrient uptake, and oxidative stress response. In the absence of Fe,...


Partial replacement of mineral fertilisers with animal manures in an apple orch...

Esteves, Catarina; Costa, Eva; Mata, Miguel; Mota, Mariana; Ribeiro, Henrique; Fangueiro, David

Partial replacement of mineral fertilisers (MF) with animal manures is a good alternative to reduce MF use and increase both nutrient cycling in agriculture and soil organic matter. However, the adoption of this practice must not lead to increased environmental impacts. In this two-year study conducted in an apple orchard, MF were partially replaced with various animal manures, including cattle slurry (CS), aci...


Optimizing slurry management

Fangueiro, David; Elmahdi, Jihane; Nyang'au, Jared; Chrysanthopoulos, Stamatis; De Vries, Jerke; Sørensen, Peter


When the solution becomes the problem: a review on antimicrobial resistance in ...

Pires, Ana José; Pereira, Gonçalo; Fangueiro, David; Bexiga, Ricardo; Oliveira, Manuela

Antibiotics' action, once a ‘magic bullet’, is now hindered by widespread microbial resistance, creating a global antimicrobial resistance (AMR) crisis. A primary driver of AMR is the selective pressure from antimicrobial use. Between 2000 and 2015, antibiotic consumption increased by 65%, reaching 34.8 billion tons, 73% of which was used in animals. In the dairy cattle sector, antibiotics are crucial for treat...


Exploring social indicators in smallholder food systems: modeling children’s ed...

Thom, Amy E.; Bélières, Jean-François; Conradie, Beatrice; Salgado, Paulo; Vigne, Mathieu; Fangueiro, David

Promoting smallholders’ sustainable development in Africa means addressing agronomic and economic factors but also highly relevant social influences shaping farmers’ production and affecting household well-being. Holistic, integrated analyses can help to meet this need, informing more effective policies and interventions for smallholder farming systems. The authors apply a transdisciplinary, quantitative approa...


When the solution becomes the problem: a review on antimicrobial resistance in ...

Pires, Ana José; Pereira, Gonçalo; Fangueiro, David; Bexiga, Ricardo; Oliveira, Manuela

Antibiotics' action, once a ‘magic bullet’, is now hindered by widespread microbial resistance, creating a global antimicrobial resistance (AMR) crisis. A primary driver of AMR is the selective pressure from antimicrobial use. Between 2000 and 2015, antibiotic consumption increased by 65%, reaching 34.8 billion tons, 73% of which was used in animals. In the dairy cattle sector, antibiotics are crucial for treat...


Agro-industrial by-products as alternative additives for the agronomic valoriza...

Chrysanthopoulos, Stamatis; Coutinho, João; Silva, Ana Carla; Brito, Luisa; Fangueiro, David

The use of animal slurry in modern agricultural systems is receiving considerable attention, mainly due to the latest increase in chemical fertilizer prices. However, the use of raw animal slurry to fertilize horticultural crops can, on the one hand, lead to significant ammonia emissions and, on the other hand, be an important source of zoonotic pathogens. Therefore, proper treatment is required. The present st...


Biochar supplementation affects the microbiome of recycled manure solids for co...

Guerreiro, Joana F.; Pires, Ana J.; Nunes, Mónica; Esteves, Ana; Chambel, Lélia; Pascoal, Pedro; Pereira, Marcelo; Fangueiro, David; Tavares, Luís

The widespread use of Recycled Manure Solids (RMS) as cow bedding material is not without risks, since cattle manure may act as a vehicle for pathogenic and antimicrobial resistant bacteria dissemination. Thus, our aim was to evaluate RMS-supplemented with a pine biochar produced in Portugal as a new cow bedding material, since the use of biochar has been shown to have the potential to mitigate the impact of re...


Efeitos da utilização de chorume de suíno bruto ou tratado na substituição da a...

Alvarenga, Paula; Araújo, Miguel; Prado, Joana; Ribeiro, Henrique; Fangueiro, David

A 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...

Date: 2023   |   Origin: Revista de Ciências Agrárias

Impacto sobre el calentamiento global en la aplicación de compost de “alperujo”...

Fernández-Rodríguez, Damián; Peña, David; Rato, Jose Manuel; Martín, Carmen; Sánchez, Jaime; Vicente, Luis; Albarrán, Ángel; Fangueiro, David

El cultivo tradicional de arroz (laboreo e inundación) es una de las fuentes antropogénicas más importantes en la emisión de gases de efecto invernadero (GEI), especialmente CH4 y N2O. Por tanto, es necesario desarrollar nuevas técnicas de manejo que puedan mitigar esta problemática. El objetivo del presente trabajo fue evaluar el efecto de los diferentes manejos en condiciones aeróbicas; laboreo (L) y su homól...

Date: 2023   |   Origin: Revista de Ciências Agrárias

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