|
|
|
| Registros recuperados: 683 | |
|
|
| Xi, Yunguan. |
| The runoff N, P from organic and conventional rice-wheat rotation field in terms of equal N input was studied through field plot test in Tai lake region. The results showed that in the rice-wheat rotation field in Tai lake region the runoff TN from organic and conventional field was 56.15kg/hm2 and 77.90kg/hm2 respectively, 27.9% less from organic field; for the runoff N coefficient, in organic field, rice season it’s 7.19% and wheat season 9.12%, in conventional field, rice season it’s 9.74% and wheat season 16.75%; the runoff TP from organic and conventional field was 2.38 kg/hm2 and 1.03 kg/hm2, respectively, 131.06 % more from organic field; for the runoff P coefficient, in organic field, rice season it’s 0.84 % and wheat season 0.14%, in conventional... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions. |
| Ano: 2014 |
URL: http://orgprints.org/23637/1/23637-final-xi-China-1402010_MM.pdf |
| |
|
|
| Helin, Janne; Laukkanen, Marita; Koikkalainen, Kauko. |
| Designing efficient agri-environmental policies for agricultural nutrient load reductions calls for information on the costs of emission reduction measures. This study develops an empirical framework for estimating abatement costs for nutrient loading from agricultural land. Nitrogen abatement costs and the phosphorus load reductions associated with nitrogen abatement are derived for crop farming in southern Finland. The model is used to evaluate the effect of the Common Agricultural Policy reform currently underway on nutrient abatement costs. Results indicate that an efficiency designed policy aimed at a 50 % reducton in agricultural nitrogen load would cost 25 to 28 million euro, or 1995 to 2197 euro per farm. |
| Tipo: Report |
Palavras-chave: Air and water emissions. |
| Ano: 2006 |
URL: http://orgprints.org/11137/1/DPapers.pdf |
| |
|
|
| Knudsen, Marie Trydeman; Dorca-preda, Teodora; Djomo, Sylvestre Njakou; Kristensen, Troels; Ambye-Jensen, Morten; Møller, Henrik B.; Dupont, Y.L.; Cong, W-F; Eriksen, Jørgen. |
| Including grass leys in organic arable rotations has potentially several benefits such as suppression of certain weeds, increased biodiversity (i.e. pollinators), increased soil carbon sequestration and productivity among others. The biomass from the grass mixtures can be refined into protein feed concentrate for monogastrics that can partly replace imported soybean, while the fibre fraction can be used as ruminant feed or for biogas. The grass mixtures can also be used directly for biogas. Increasing diversity of the mixtures will potentially also increase the yield stability and the benefits for biodiversity (pollinators), while the number of cuts per year will also have an effect. Thus, the use of multispecies mixtures in organic arable rotation for... |
| Tipo: Journal paper |
Palavras-chave: Air and water emissions; Biodiversity and ecosystem services. |
| Ano: 2020 |
URL: http://orgprints.org/35188/1/Knudsen%20et%20al.%20%28manuscript%29%20Environmental%20LCA%20of%20organic%20grass%20protein.doc |
| |
|
| |
|
|
| Niggli, U.; Schmid, O.; Stolze, M.; Sanders, J.; Schader, C.; Fließbach, A.; Mäder, P.; Klocke, P.; Wyss, G.; Balmer, O.; Pfiffner, L.; Wyss, E.. |
| Zusammenfassuung: In diesem Bericht werden die wissenschaftlichen Ergebnisse nationaler und internationaler Studien zu den gesellschaftlichen Leistungen des Biolandbaus zusammengefasst. Als Referenzen werden dabei sowohl die konventionelle wie auch die integrierte Landwirtschaft herangezogen. Es ist den Autoren bewusst, dass alle Landwirtschaftsmethoden in der Schweiz und im Ausland eine grosse Streubreite aufweisen, da der Einfluss der regionalen sozioökonomischen Rahmenbedingungen, der Standortfaktoren, der Betriebsleiter und der unterschiedlichen staatlichen und privaten Regulierungen gross ist. Trotzdem ergeben sich für die verschiedenen Landwirtschaftsmethoden klare Unterschiede, die bei den agrarpolitischen Massnahmen berücksichtigt werden... |
| Tipo: Report |
Palavras-chave: Environmental aspects; Biodiversity and ecosystem services; Air and water emissions. |
| Ano: 2009 |
URL: http://orgprints.org/15397/2/niggli%2Detal%2D2009%2Dgesllschaftl%2Dleistungen.pdf |
| |
|
| |
|
|
| The FoodPrint09 conference, on novel strategies for climate mitigation, sustainability and healthy eating in public foodscapes, held in Copenhagen in the end of November 2009 underlined the need to take climate impact of public food into consideration when developing strategies for sustainable consumption and healthy eating in public food systems. Traditional food choice strategies address the responsibility of the individual. The iPOPY research project takes a different approach - a collective one. iPOPY research focus on how professional decision makers, public planners and politicians can impact climate through the strategies chosen in large scale food environments and how organic food supply can be integrated. The conference focused on settings... |
| Tipo: Proceedings |
Palavras-chave: Environmental aspects; Food systems; Markets and trade; Air and water emissions. |
| Ano: 2010 |
URL: http://orgprints.org/16798/1/FoodPrint'09_Proceedings_2nd_ed_FINAL.pdf |
| |
|
|
| Kelm, Dr. Michael; Loges, Dr. Ralf; Taube, Prof. Dr. Friedhelm. |
| Nutrient management is a key factor for both economic viability and environmental performance of farming systems. On 32 representative conventional and organic farms in Northern Germany, nutrient management was analyzed in the interdisciplinary monitoring project “COMPASS”. Organic farms had significantly lower nitrogen (N) surpluses compared with conventional farms. The majority of organic farms had very low or even negative N surpluses, indicating insufficient N supply in the cropping system. Nitrogen leaching, however, was too high in many cases on both conventional and organic farms. Strategies for a more targeted nutrient supply in organic farming need to be developed and implemented. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions. |
| Ano: 2008 |
URL: http://orgprints.org/11679/1/11679.pdf |
| |
|
|
| Eriksen, J.; Askegaard, M.; Søegaard, K.. |
| Increasing size of organic dairy farms makes grazing of all cropped land inexpedient due to long distance to the milking facilities. We investigated nutrient dynamics and feed production in two dairy crop rotations with differences in proportion of grazing and cutting. One six year crop rotation represents close to the farm buildings (barley undersown with grass-clover - 4 years of grass-clover - spring barley/catch crop) and another represents further away (barley undersown with grass-clover, 2 years of grass-clover -barley/catch crop - maize/catch crop - lupin/catch crop). In each of the crop rotations was made five treatments concerning grazing/cutting strategy and manure application. Results shows that herbage production was high in year 1-4 of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Farm nutrient management; Air and water emissions. |
| Ano: 2009 |
URL: http://orgprints.org/16291/1/16291.pdf |
| |
|
|
| Szerencsits, Manfred; Heß, Jürgen. |
| Obwohl in zahlreichen Untersuchungen nachgewiesen wurde, dass der Ökologische Landbau in der Regel geringere Grundwasserbelastungen verursacht als die konventionelle Landwirtschaft (z.B. STOLZE et. al 2000),gibt es nur wenige Projekte, in denen es gelang, die Vorzüge des Ökolandbaus für den Wasserschutz nutzbar zu machen. In Niedersachsen hingegen wurde der Ökolandbau landesweit in den Trinkwasserschutz integriert, da im Rahmen von Pilotprojekten positive Erfahrungen gesammelt wurden. Er wird durch die Proland-Richtlinie gemäß VO (EG) 1257/1999 gezielt gefördert. Einerseits werden für die ökologische Bewirtschaftung von Flächen in Wassergewinnungsgebieten Ausgleichszahlungen bereitgestellt. Andererseits werden Projekte gefördert, die den ökologisch... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions. |
| Ano: 2003 |
URL: http://orgprints.org/1079/1/szerencsits%2D2003%2Dumstellungsfoerderung%2Dwasserschutzgebiet.pdf |
| |
|
| |
|
|
| Koller, Martin. |
| Erkenntnisse aus 6 Versuchen ❯ Winterfuttererbse hat sich als Gründüngungspfl anze am besten bewährt, weil damit späte Aussaaten möglich sind ❯ Im Durchschnitt wiesen die Erbsen 156 kg Stickstoff pro ha in der Grünmasse auf ❯ Ohne zusätzliche N-Düngung erzielte der Silomais einen Ertrag von durchschnittlich 177 dt TS/ha ❯ In Ackerbaufruchtfolgen passt die Erbsen-Gründüngung gut, wenn nach Getreide eine Unkrautkur durchgeführt werden soll ❯ In Gemüsebaufruchtfolgen passen die Erbsen nach Lagerkulturen und vor Folgekulturen, die Ende Mai gepflanzt oder gesät werden ❯ Saatzeitpunkt: Anfangs Oktober (Überwinterung im 2-4 Blattstadium), Saaten bis in den Dezember möglich (Keimung Februar/März) ❯ Einarbeitung: Flaches Pflügen oder Scheibenegge... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farm economics; Soil tillage; Air and water emissions. |
| Ano: 2011 |
URL: http://orgprints.org/18865/1/koller-2011-poster-schlatthof-fr.pdf |
| |
|
|
| Taube, Friedhelm; Wachendorf, M.; Loges, R.. |
| Zusammenfassung: Aus aggregierter Sicht der pflanzenbaulichen Leistung wie des abiotischen Ressourcenschutzes ist festzuhalten: 1) der Futterbau auf den sandigen Standorten der Geest ist bei reduzierter N-Intensität durch geringe Grenzertragsverluste, aber hohe Reduktionen der Nitratauswaschungen geprägt; im Marktfruchtbau des östlichen Hügellandes herrschen inverse Beziehungen vor. 2) Ein Flächenbilanzsaldo von +20 bis +40 kg/ha/Jahr (plus "unvermeidbare gasförmige Verluste") ist als Grenzbereich der guten fachlichen Praxis auf den Futterbaubetrieben der Geest nur durch erhebliche Reduktionen der Bewirtschaftungsintensität zu erreichen. Auf den Marktfruchtbetrieben des östlichen Hügellandes besteht dagegen eine schwache Beziehung zwischen dem... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Air and water emissions. |
| Ano: 2001 |
URL: http://orgprints.org/2367/1/handbuch%2Dkein%2DDokument.pdf |
| |
|
|
| Znaor, Darko. |
| Organic farming is a rapidly growing sector both in Croatia and elsewhere. However, there is some concern as to what a widespread adoption of organic farming would bring to society as a whole. The costs and benefits of this development and the associated trade-offs are largely unknown and have hardly been explored. There is a vast body of evidence showing that organic farming in most cases environmentally outperforms non-organic systems. However, organic farming is associated with lower yields and its further expansion might lead to job losses in some other sectors and potentially jeopardise the overall economic strength of a country. This research presents an attempt to assess the environmental and economic consequences of the large-scale adoption of... |
| Tipo: Thesis |
Palavras-chave: Farm economics; Air and water emissions; Policy environments and social economy; Environmental aspects. |
| Ano: 2008 |
|
| |
|
| |
|
| |
|
| |
|
|
| Kasper, Martina; Freyer, Bernhard; Schmid, Harald; Hülsbergen, Kurt-Jürgen; Amon, Barbara; Friedel, Jürgen K.. |
| About 8.8 % (UBA 2010) of the total greenhouse gas (GHG) emissions in Austria are caused by agricultural practices. Besides the release of climate relevant gases, C-sequestration occurs depending on the natural conditions and farming system. The focus of the project was to describe the GHG-emissions and sinks of the most relevant farming types, both organic and conventional, within the main production areas in Austria. Results of an intensively cultivated region in the North-West are presented. Based on the input data, six model-farms were created with the programme REPRO, whereby forage production, cash crops and refinement systems were considered. All systems had a positive humus balance and sequestered carbon in the soil, especially forage... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Air and water emissions. |
| Ano: 2013 |
URL: http://orgprints.org/21469/1/21469_kasper.pdf |
| |
|
| |
| Registros recuperados: 683 | |
|
|
|
