Intake of nutrients (polyunsaturated fatty acids, tocols, and carotenes) and storage efficiency in different slow-growing chickens genotypes reared in extensive systems (PPILOW project)
An extensive rearing system (ERS) for poultry requires an outdoor run, which enhances the foraging activity of chickens. Slow-growing (SG) strains are more adapted to ERS than fast-growing (FG); and generally, have higher levels of bioactive compounds in their meat. The aim of this paper was to assess the storage efficiency of n-3 and n-6 […]
“Quali nutrienti riciclati per l'agricoltura biologica? E perché?” – 18 settembre online
Il convegno online, dalle 14.00 alle 17.00, è organizzato da IFOAM OE e ESPP. Vi partecipano i rappresentanti delle organizzazioni di agricoltura biologica di tutta Europa. La struvite e i fosfati precipitati riciclati sono stati aggiunti all’elenco degli input autorizzati come fertilizzanti nell’agricoltura biologica certificata dell’Ue. Alcuni altri nutrienti riciclati sono già autorizzati a determinate […]
Ecological approach to soil fertility and health in the Tropics – Practices that improve the soil and meet crops needs
This factsheet introduces soil fertility and health, explains how the holistic organic farming approach improves soil fertility, provides some practices which contribute to improving soil health and help meet the nutrient requirement of crops, animals and humans. The information is based on long-term experiments and on-farm research conducted in the scope of three projects across […]
Nutrient interactions and salinity effects on plant uptake of phosphorus from waste-based fertilisers
Many organically managed farms in Europe have low levels of soil phosphorus (P). Arable farms that rely strongly on biological nitrogen fixation (BNF) have been shown to have rather low outputs and a tendency to deplete soil P and potassium (K) compared with arable farms that have a lower reliance on BNF and higher external […]
Riboflavin for laying hens fed organic winter diets: effects of different supplementation rates on health, performance and egg quality
For reasons of aspired naturalness and cost reduction, vitamin additions should be kept low in organic livestock systems. To define safe lower threshold levels of riboflavin supplementation in organic poultry feeding, 135 hybrid layers were allocated to three dietary treatments supplemented with either 4.5 (R4.5), 3.0 (R3.0) or 1.5 mg (R1.5) GMO-free riboflavin added per […]
Nutrient interactions and salinity effects on plant uptake of phosphorus from waste-based fertilisers
RELACS – Improving inputs for organic farming – Many organically managed farms in Europe have low levels of soil phosphorus (P). Arable farms that rely strongly on biological nitrogen fixation (BNF) have been shown to have rather low outputs and a tendency to deplete soil P and potassium (K) compared with arable farms that have […]
Organic Farm Knowledge: Winter field peas as green manure before maize
On arable farms without livestock, nitrogen insufficiency can occur when cultivating nutrient demanding crops like maize. This can lead to yield losses and weed infestation. Use a green manure of winter field peas before growing crops that have a high nitrogen demand in the rotation. Ploughing in winter field peas in spring can provide more […]
Riciclo dei nutrienti, rifiuti organici, carbone d'ossa, fosfogesso: il parere dell’EGTOP
EGTOP sottolinea che il riciclo dei rifiuti organici è importante per la sostenibilità della filiera agroalimentare e che “l’economia circolare dovrebbe essere ampiamente adottata nella produzione biologica”, ma sottolinea le preoccupazioni per i possibili contaminanti. Il rapporto di EGTOP sui fertilizzanti raccomanda l’approvazione della struvite e dei sali di fosfato recuperati in agricoltura biologica e […]
Anaerobic digestates as a nutrient source for organic farming
There is a need to find new and sustainable nutrient sources for organic farming. Urban (food) waste can be a highly valuable source with low environmental impact and high recycling efficiency. This source can be used to compensate for the negative nutrient balances in organic farming. However, it must be treated to become hygienic, biologically […]
Meta-analysis of nutrient budgets in organic farms across Europe
A scientific publication for the project “Relacs – Improving inputs for organic farming”. Nutrient supply to organic farms is a highly discussed topic in Europe, due to the restricted availability of external fertilizer resources and the use of contentious inputs. To optimize the flow of nutrients throughout the organic farming system, it is firstly necessary […]
