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Registros recuperados: 226
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A Century of Synthetic Fertilizer: 1909-2009 Organic Eprints
Paull, John.
This year marks a centenary of the synthetic fertilizer industry. German chemists, Fritz Haber and Carl Bosch, in 1909 demonstrated their industrial process for the manufacture of ammonia. The achievement won them accolades including Nobel Prizes. The output of their Haber-Bosch process can be used for either peace or war, agriculture or munitions, and the rapid adoption by Germany of this industrial process is credited with prolonging WW1. Most of the synthetic nitrogenous fertilizer of the past century, and right up to the present, has been manufactured using the Haber-Bosch process. The use of synthetic fertilizers has led to significant negative environmental outcomes. Rudolf Steiner was an early voice against chemical agriculture. Steiner's...
Tipo: Journal paper Palavras-chave: Environmental aspects; History of organics; Switzerland; Farming Systems; Farm nutrient management; Germany; Europe.
Ano: 2009 URL: http://orgprints.org/15797/1/15797.pdf
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A Forest Management Map of European Forests Ecology and Society
Hengeveld, Geerten M.; ALTERRA - Wageningen UR; Geerten.Hengeveld@wur.nl; Nabuurs, Gert-Jan; European Forest Institute; gert-jan.nabuurs@efi.int; Didion, Markus; ALTERRA - Wageningen UR; Markus.didion@wur.nl; van den Wyngaert, Isabel; ALTERRA - Wageningen UR; isabel.vandenwyngaert@wur.nl; Clerkx, A.P.P.M. (Sandra); ALTERRA - Wageningen UR; Sandra.Clerkx@wur.nl; Schelhaas, Mart-Jan; ALTERRA - Wageningen UR; martjan.schelhaas@wur.nl.
Forest management to a large extent determines the possible services that the forest can provide. Different objectives in forest management determine the rotation length and valuation of different stages in forest succession. We present a method of mapping potential forest management at 1-km resolution to inform policy, land use modeling, and forest resource projections. The presented method calculates the suitability of a location to different forest management alternatives based on biotic, abiotic, socioeconomic, and political factors. A sensitivity analysis of the resulting map to the data sources used was performed. This showed that the results are very sensitive to some data sources. The potential use of the map and the sensitivity to the availability...
Tipo: Peer-Reviewed Reports Palavras-chave: Europe; Forest management approach; Land use mapping.
Ano: 2012
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A revision of Choleva agilis (Illiger, 1798) and related species (Coleoptera: Staphylinoidea: Cholevidae) Naturalis
Schilthuizen, M..
The Choleva agilis-group is revised. The three species are redescribed and their zoogeography is discussed. The phylogeny of the three species is hypothesized. Choleva jailensis Jeannel, 1923 and C. agilis clermonti van der Wiel, 1931 are new synonyms of C. agilis (Illiger, 1798). C. lederiana var. brevicollis Krogerus, 1926, is a new synonym of C. lederiana Reitter, 1901. The cavernicolous taxon gracilenta Szymczakowski, 1957, formerly regarded as a subspecies of C. lederiana, is transferred to C. septentrionis Jeannel, 1923.
Tipo: Article / Letter to the editor Palavras-chave: Cholevidae; Choleva; Key; Phylogeny; Zoogeography; Variability; Europe; 42.75.
Ano: 1990 URL: http://www.repository.naturalis.nl/record/318021
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A row cropping system with cover crops for balancing weed and soil fertility management in organic cereal production Organic Eprints
Phan, Hong TT; Thorup-Kristensen, Kristian.
This manuscript shows the result from testing the new row cropping system for its ability to produce a balanced combination of inter-row hoeing and undersown cover crop in order to obtain a sufficient N supply and an effective weed control as well as to identify optimal sowing time for high biomass production and cover crop species suited for late undersowing. The new system produced a sufficient N supply and an acceptable weed control effect, leading to an improvement in the subsequent crop yield. Yield in this system is potentially improved further because some managements are suggested to increase its weed control effect, especially for the perennial creeping thistle cirsium arvense.
Tipo: Journal paper Palavras-chave: Nutrient turnover; Research communication and quality; Biodiversity and ecosystem services; Farm nutrient management; Europe.
Ano: 2019 URL: http://orgprints.org/35191/1/Manuscript-rowcrop%20system.pdf
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A standardized description of European Sminthuridae (Collembola, Symphypleona), 2: review of four species of the genera Allacma and Spatulosminthurus Naturalis
Nayrolles, Pierre.
According to our standard of the appendicular chaetotaxy, the following species are redescribed: Allacma fusca (Linné, 1758), Allacma gallica (Carl, 1899), Spatulosminthurus lesnei (Carl, 1899), and Spatulosminthurus betschi Nayrolles, 1990.
Tipo: Article / Letter to the editor Palavras-chave: Collembola; Symphypleona; Allacma; Spatulosminthurus; Taxonomy; Chaetotaxy; Europe.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/503953
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A taxonomic revision of the Pleistocene Hystrix (Hystricidae, Rodentia) from Eurasia with notes on the evolution of the family Naturalis
Weers, D.J. van.
Measurements of many hundreds of the high-crowned cheek teeth of Hystrix specimens from the Euro-Asiatic Pleistocene in the collections of European and Asiatic institutions have been compared with extant species for a revision of the genus. A review is given about the extant genera and species of the family. The number of recognisable Euro-Asiatic species in the fossil record is reduced from eight to five. The European H. (A.) vinogradovi Argyropulo, 1941 is here considered to be a synonym of H. (A.) brachyura Linnaeus, 1758, and the three Asiatic species H. (H.) crassidens Lydekker, 1886, H. (H.) gigantea Van Weers, 1985 and H. (H.) magna Pei, 1987 are synonymized with H. (H.) refossa Gervais, 1852. Most of the Chinese fossil specimens are properly...
Tipo: Article / Letter to the editor Palavras-chave: Porcupines; Asia; Evolution; Europe; Paleogeography; Pleistocene; 42.84.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/209654
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Analisis Malmquist y DEA intertermporal de las agriculturas de la Union Europea AgEcon
Aldaz, Natalia; Millan, Joaquin A..
En este trabajo se realiza un análisis comparado de dos métodos no paramétricos de medida de productividad total de los factores con datos de panel basados en programación: índices de Malmquist y un modelo DEA intertemporal que permite acotar las medidas de eficiencia y progreso técnico, suponiendo cambio técnico no regresivo. La aplicación se realiza sobre las agriculturas de los países de la Unión Europea, encontrándose algunas diferencias importantes entre ambos enfoques. Los resultados sugieren menor crecimiento de productividad agraria y, sobre todo, una ordenación distinta de países en relación con dichos crecimientos que los encontrados en otros trabajos. Palabras clave: Productividad, DEA, Agricultura, Europa, Datos de panel. SUMMARY This paper...
Tipo: Journal Article Palavras-chave: Productivity; DEA; Agriculture; Europe; Panel data; Agricultural and Food Policy; D24; O47; Q10.
Ano: 2003 URL: http://purl.umn.edu/28796
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Aquaculture, protection de l'environnement et signes de qualite ArchiMer
Lorvellec, L.
This paper deals with the interaction between freshwater fish farming and the environmental protection including quality assessment in regard to French and European legislation.
Tipo: Text Palavras-chave: Europe; France; Legislation; Quality control; Environmental protection; Aquaculture.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/1993/acte-1324.pdf
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Assessing the European Union emissions trading directive AgEcon
Convery, Frank J.; Redmond, Luke; Dunne, Louise; Ryan, Lisa B..
The Emissions Trading scheme now (January 2003) in prospect in the European Union is likely to be the first trans-national greenhouse gas emissions trading scheme in the world. With the participation of the European Economic Area [EEA] countries and with the forthcoming EU enlargement, 30 countries could be involved in this scheme by 2012. Under European Union law, the European Commission is responsible for making proposals, which are then decided upon by the Council of Ministers - on a 'qualified majority' basis in this case - representing the 15 Member State governments, and the European Parliament. In the case of this Directive, the Commission prepared its initial proposals, which have then been scrutinised by the European Parliament and the Council...
Tipo: Journal Article Palavras-chave: Emissions trade; Directive; Europe; International Relations/Trade; F18; N54; Q56.
Ano: 2003 URL: http://purl.umn.edu/28794
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Atlas of Organics: Four maps of the world of organic agriculture Organic Eprints
Paull, John; Hennig, Benjamin.
This paper presents four maps of the world of organic agriculture. Density equalising maps (cartograms) have previously been published of the world of organic agriculture based on the reported hectares of certified organically managed agriculture land. The four maps in the present atlas of organic agriculture are visual presentations of current global organics data: (a) certified organic agriculture hectares; (b) certified organic wildculture hectares; (c) total certified organic production hectares (organic agriculture plus wildculture plus forestry plus aquaculture); (d) certified organic producers. Australia dominates in the world map of the organic agriculture hectares, Europe is strongly represented, and Africa is weakly represented. Finland dominates...
Tipo: Journal paper Palavras-chave: "Organics" in general; Farming Systems; Africa; Asia; Australia; China; European Union; India; Latin America; North America; United Kingdom; United States; World; Knowledge management; Europe.
Ano: 2016 URL: http://orgprints.org/30187/1/PaullHennig2016.OAMaps.pdf
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Biolandbau in Europa – Aufwärtstrend ungebrochen Organic Eprints
Willer, Helga.
n der Europäischen Union folgt beim Biolandbau ein Rekordjahr nach dem anderen. Die jüngsten konsolidierten Zahlen zeigen: Bio legte auch 2016 weiter zu und die für einzelne Länder zum Druckzeitpunkt vorliegenden Zahlen für 2017 belegen, dass der positive Trend sich fortsetzt. Der Biomarkt wuchs 2016 zweistellig auf über 30 Milliarden Euro und die Biofl äche stieg auf zwölf Millionen Hektar an. Fast alle großen Märkte verzeichneten zweistellige Wachstumsraten. Österreich hat die 20 Prozentmarke bei der Fläche längst überschritten und in Dänemark liegt der Biomarktanteil bei über zehn Prozent. Der nachfolgende Beitrag gibt zunächst einen Überblick über die Flächen-, Betriebs- und Marktentwicklung in Europa, benennt sodann die wichtigsten Gründe...
Tipo: Book chapter Palavras-chave: Europe.
Ano: 2019 URL: http://orgprints.org/33356/1/willer-2019-bio-in-europa.pdf
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Biomarkt europaweit, Erfolgsfaktoren, Strategien Organic Eprints
Richter, Toralf.
Biomarkt in der Schweiz konsolidiert sich. Produktbezogenes Marketing, Attraktive Herstellermarken, Impulskäufe durch Optimierung Merchandising bieten trotzdem Wachstumschancen für Bio. Umsetzung vom Marketingstrategien und damit Markterfolg hängt in der Schweiz von der individuellen Vorliebe weniger Entscheider im Handel ab.
Tipo: Conference paper, poster, etc. Palavras-chave: Markets and trade; Europe.
Ano: 2005 URL: http://orgprints.org/4871/1/Richter%2D2005%2DBiomarkt%2Dpowerpoint.pdf
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Bitomoides gen. nov. (Hymenoptera: Braconidae: Opiinae) from Europe Naturalis
Achterberg, C. van.
Bitomoides gen. nov. (type species: Bitomus latus Papp, 1999) is described and illustrated. In addition Phaedrotoma recondes spec. nov. and Chelonus lukasi nom. nov. are validated.
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Braconidae; Opiinae; Bitomoides; Orientopius; Opius; Phaedrotoma; Microchelonus; Chelonus; Palaearctic; Europe; 42.75.
Ano: 2004 URL: http://www.repository.naturalis.nl/record/214447
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Book review [Insects and diseases damaging trees and shrubs of Europe] Naturalis
Nieukerken, E. van.
Tipo: Book review Palavras-chave: Europe; Insects; Trees.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/647979
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Building trust in agri-food chains: the mediating role of effective communication AgEcon
Fischer, Christian.
Using recent survey data (n = 1,430) on trust levels in agri-food supplier-buyer relationships in six different European countries, two commodity chains (meat and cereals) and two chain stages (farmer-processor and processor-retailer), main determinants of trust are identified and discussed. The structural equation modelling estimation results indicate that trust can be significantly improved by effective communication and by a positive collaboration experience. The existence of personal bonds does not seem to play a direct role in the retailer-processor relationship but is important when dealing with farmers. In both chain stages a positive collaboration experience as well the existence of personal bonds also indirectly enhance trust by promoting...
Tipo: Conference Paper or Presentation Palavras-chave: Trust; Agri-food Chains; Europe; Agribusiness; Marketing; Q13; L14; L66.
Ano: 2009 URL: http://purl.umn.edu/50106
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Caenopachys hartigii (Ratzeburg) (Hymenoptera: Braconidae: Doryctinae) confirmed for Italy, with notes on the status of the genus Caenopachys Foerster Naturalis
Mancini, D.; Priore, R.; Battaglia, D.; Achterberg, C. van.
The Palaearctic species Caenopachys hartigii (Ratzeburg, 1848) has been collected in the National Park of Pollino (S Italy), which is the first exact confirmation for the Italian fauna. A brief nomenclatural history of the genus Caenopachys Foerster, 1862, is given, its status is discussed and it is elevated from synonymy. The type species is re-described and illustrated; a key to both West Palaearctic species is given, and some biological notes are added.
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Braconidae; Doryctinae; Caenopachys; Dendrosoter; C. hartigii; New combination; Italy; France; Bulgaria; Europe; Morocco; West Palaearctic; 42.75.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/216165
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Code of Practice for organic food processing Organic Eprints
PrOOrg has the objective to develop a flexible and practicable Code of Practice (CoP) for processors of organic foods, as well as labelling organizations aiming to provide the operators with strategies and tools for making decisions that can help them to take the best choice for careful processing methods and formulations with a limited use of additives, while addressing the organic principles, high food quality, low environmental impact and high degree of consumer acceptance.
Tipo: Project description Palavras-chave: Europe.
Ano: 2019
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Combination of undersown catch crops and row-hoeing for optimizing nitrogen supply and weed control in organic spring barley Organic Eprints
Phan, Hong TT; Thorup-Kristensen, Kristian.
This is an early result of a field experiment where we aimed to optimize a row cropping system for organic cereal production with the use of undersown cover crops in combination with inter-row hoeing.
Tipo: Conference paper, poster, etc. Palavras-chave: Nutrient turnover; Biodiversity and ecosystem services; Denmark; Farm nutrient management; Knowledge management; Europe; Regulation.
Ano: 2015 URL: http://orgprints.org/33096/1/FSD5%20conference%20paper-Hong.pdf
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Comparison of Neogene low-crowned Hystrix species (Mammalia, Porcupines, Rodentia) from Europe, West and Southeast Asia Naturalis
Weers, D.J. van.
The low-crowned Hystrix species known of the Neogene from Europe and Asia and some new finds from Shihuiba near Lufeng, South China, are compared on the basis of numerical data. The taxonomical allocation of the seven species recognised thus far is maintained. The occurrences of two coeval Eurasian late Turolian species is discussed. The material from Lufeng is described and allocated to Hystrix primigenia (Wagner, 1848), implicating an area of distribution of this species from S.E. Europe to S.E. Asia in the Turolian. In the northern Chinese Hystricidae the increase of the cheek tooth height is more advanced than in the the West Asiatic and European representatives. The difference in ecological environment of Hystrix gansuensis Wang & Qiu, 2002 (North...
Tipo: Article / Letter to the editor Palavras-chave: Hystrix; Neogene; Europe; Asia; Shihuiba; Lufeng; Gansu; China.
Ano: 2004 URL: http://www.repository.naturalis.nl/record/505143
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Conférence de l'EAS "Biotechnologies for quality". Barcelone, Espagne, 20-23 octobre 2004 - Rapport de mission ArchiMer
Lacroix, Denis.
Le congrès annuel de l'EAS (European Aquaculture Society) a rassemblé pendant 4 jours 531 chercheurs, producteurs et responsables institutionnels de 47 nationalités. Il a donné lieu à la présentation de 105 communications orales et de 274 posters. La thématique générale du congrès était construite sur le thème général suivant: Biotechnologies for quality. Il s'agissait de montrer que les biotechnologies, qui font parfois peur au consommateur comme au citoyen, constituent un outil privilégié de développement de l'aquaculture, y compris dans les aspects de développement durable. De fait, aujourd'hui, les attentes du grand public restent centrées autour des notions de qualité, sécurité, bien-être et santé animale. Le représentant de la Commission européenne a...
Tipo: Text Palavras-chave: Aquaculture; Biotechnologie; Qualité; Europe; Méditerranée.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00153/26450/24554.pdf
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