|
|
|
| Registros recuperados: 14 | |
|
| |
|
|
| Friedel, Jürgen K.; Kasper, Martina; Schmid, Harald; Hülsbergen, Kurt-Jürgen; Freyer, Bernhard. |
| On organic farms, phosphorus (P) balances are often negative because no or little P is imported into the farms. Negative P balances may deteriorate P availability over time. We calculated P balances of the main farm production types in organic farming for the main Austrian production areas. Using data from various data bases and expert knowledge, we applied the sustainability assessment tool REPRO for calculations. The P balances were balanced to slightly deficient for organic forage dairy farms, cash crop farms and permanent crop farms, and slightly to highly surplus on organic refinement, pig producing farms. Deficient P balances, mainly on organic cash crop farms, call for P input especially on farms where available P fractions in the soil are very low... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring Recycling; Balancing and resource management Nutrient turnover Air and water emissions. |
| Ano: 2014 |
URL: http://orgprints.org/23853/1/23853_Friedel_MM.pdf |
| |
|
|
| Möller, Kurt. |
| The document is the summary of IMPROVE-P results Background Organic farming systems rely on the effi cient use and recycling of available resources. Currently, some mineral nutrients like phosphorus are used only once to produce food. Subsequently, they are lost due to poor recycling of organic wastes back to farmland. Simultaneously, P balances calculated for organic farming indicate that often more P is removed with the products than applied as fertilizer. Consequently, this leads to decreasing amounts of plant available soil P. There is an urgent need to improve the recycling of P from urban areas and the food industry, back to cropland. |
| Tipo: Other |
Palavras-chave: Composting and manuring Recycling; Balancing and resource management Nutrient turnover. |
| Ano: 2016 |
URL: http://orgprints.org/30921/1/moeller-2016-Improve-P%20leaflet.pdf |
| |
|
|
| Tittarelli, Fabio; Rea, E.; Verrastro, V.; Pascual, J.A.; Canali, S.; Ceglie, F.G.; Trinchera, A.; Rivera, C.M.. |
| A bovine manure compost (BMC) and a green compost (GC) were evaluated as components of substrates in partial substitution of peat for organic melon seedlings production. Treatments, differentiated on the basis of the volume percentage of the two analysed composts, were compared to the control (a mixture of peat, coconut fibre and perlite). In order to respect the guidelines of organic production, all the treatments were fertilised, at the beginning of the trial, with guano. Compost-based substrates were analysed for physical, physicochemical and chemical parameters (bulk density, porosity, pH, EC, nutrients content etc.). Even though significant differences were observed, recorded values were in the range of acceptability for growing media. In terms of... |
| Tipo: Journal paper |
Palavras-chave: Composting and manuring Recycling; Balancing and resource management Greenhouses and coverings. |
| Ano: 2009 |
URL: http://orgprints.org/19048/1/Tittarelli_et_al._2009.pdf |
| |
|
| |
|
| |
|
|
| Tittarelli, Fabio; Rea, E.; Verrastro, V.; Pascual, J.A.; Canali, S.; Ceglie, F.G.; Trinchera, A.; Rivera, C.M.. |
| A bovine manure compost (BMC) and a green compost (GC) were evaluated as components of substrates in partial substitution of peat for organic melon seedlings production. Treatments, differentiated on the basis of the volume percentage of the two analysed composts, were compared to the control (a mixture of peat, coconut fibre and perlite). In order to respect the guidelines of organic production, all the treatments were fertilised, at the beginning of the trial, with guano. Compost-based substrates were analysed for physical, physicochemical and chemical parameters (bulk density, porosity, pH, EC, nutrients content etc.). Even though significant differences were observed, recorded values were in the range of acceptability for growing media. In terms of... |
| Tipo: Journal paper |
Palavras-chave: Composting and manuring Recycling; Balancing and resource management Greenhouses and coverings. |
| Ano: 2009 |
|
| |
|
|
| Das hier beschriebene Verbundvorhaben umfasst folgende Teilprojekte: FKZ 12NA109, FKZ 12NA125. Alle in Organic Eprints archivierten Projektbeschreibungen und Veröffentlichungen zu diesem Verbundvorhaben finden Sie unter folgendem Link: http://orgprints.org/id/saved_search/1573. Entwicklung und Testung von Kultursubstraten für den Erwerbsgartenbau, die aus den Hauptkomponenten Torfmoos-Frischmasse (Sphagnum spec.) und Kompost (Gewinnung aus Feuchtflächen-Landschaftspflege) bestehen; Analyse der physikalischen/chemischen/biologischen Eigenschaften der Komponenten und der Substratmischungen und Vergleich mit konventionellen Torf-Kultursubstraten mit anschließender Bewertung der Ergebnisse (besonders im Hinblick auf die Vorgaben der Gütekriterien für... |
| Tipo: Project description |
Palavras-chave: Composting and manuring Recycling; Balancing and resource management Biodiversity and ecosystem services Crop health; Quality; Protection Ornamentals; Flower bulbs and tree nurseries. |
| Ano: 2024 |
|
| |
|
| |
|
| |
|
|
| Starz, Walter; Ehrmann, S.; Rohrer, Hannes; Pfister, Rupert. |
| Slurry is known as a source of ammonia (NH3), methane (CH4) and nitrous oxide (N2O) emissions. NH3 emissions depend on the pH value of the slurry and previous studies show that emissions could be reduced by lowering the pH. In order to estimate the influence of stirring on the pH and the NH3 emission potential of cattle slurry, three treatments (A not stirred, B stirred for 1 x 60 min and C stirred for 6 x 10 min per day) were compared. The results show that no positive effects of stirring cattle slurry, neither in economic nor in ecological terms, can be expected. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring Recycling; Balancing and resource management. |
| Ano: 2017 |
URL: http://orgprints.org/31573/1/Einfluss%20des%20R%C3%BChrens%20von%20Rinderg%C3%BClle%20auf%20den%20pH-Wert.pdf |
| |
|
| |
|
| |
|
|
| Løes, Anne-Kristin; Cooper, Julia; Gascoyne, Kate. |
| The loss of phosphorus in exported products is a concern for all organic producers. The team of CORE Organic Project "Improve-P" assess attitudes to alternative phosphorus fertilisers among organic stakeholders. This paper reports on results collected via a questionnaire at the National Soil Symposium in Solihull, UK November 2014. 58 respondents showed a large interest in recycled P fertilisers, e.g. derived from human urine. One respondent who summed up the workshop in this way: Ultimately for sustainability we have to replace P, lost off farm but balance between purity and recycling is a difficult one. We need to focus on making best use of P reserves in soil, for example deep-rooting green manures, efficient composting, P scavenging plants, that is,... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Composting and manuring Recycling; Balancing and resource management. |
| Ano: 2015 |
URL: http://orgprints.org/29379/1/12_0F119_PHOSPHORUS_FEATURE_final.pdf |
| |
| Registros recuperados: 14 | |
|
|
|
