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| Registros recuperados: 4.506 | |
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| Nalubwama, Sylvia; Kabi, Fred; Vaarst, Mette; Kiggundu, Muhammad; Smolders, Gidi. |
| A study was conducted in 2013 to assess opportunities and challenges of integrating dairy cattle into organic pineapple production in Uganda. Thirty organic pineapple farmers were interviewed using a semistructured questionnaire. The main dairy cattle management systems were tethering (73%) and zero grazing (27%). Average landholding was 1.74 ± 1.06 and 3.75 ± 2.70 ha for zero grazing and tethering systems, respectively. All farms were diversified with various livestock such as cattle, goats, sheep, pigs, and chickens and crops including pineapples, maize, coffee, bananas, beans, sweet potatoes, and cassava. The level of integration of dairy cattle into pineapple production depended on the distance of crop fields from the livestock enterprises. More farms... |
| Tipo: Journal paper |
Palavras-chave: Dairy cattle; Africa. |
| Ano: 14 |
URL: http://orgprints.org/32998/1/Nalubwama_et_al-2018-Organic_Agriculture%20%281%29.pdf |
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| Znaor, Darko; Vollenbroek, Johan; Csikos, Imre. |
| More than a half of the territory of Central and Eastern Europe (CEE) is used for agricultural activities and agriculture represents an important economic activity of the region. But at the same time, agriculture in CEE is also a serious source of environmental degradations/pollution among which loss of biodiversity, soil and water ones seem to be most obvious. Moreover, regarding the pollution of water resources, particularly the surface water in CEE, it has been shown by several studies that agriculture represents major, much more serious source of pollution than any other sector (e.g. industry, transport, population, etc.). Among these studies, the results from the recent Danube Environmental Integrated Study, done within the framework of the UNDP... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Air and water emissions; Policy environments and social economy; Environmental aspects. |
| Ano: 1966 |
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| Baker, Brian P.; Smith, Douglas B.. |
| A survey of organic farmers in New York State identified problems in need of university research. Weed management was the most frequently mentioned problem by far, identified as significant by two-thirds of the organic farmers. Only a few other problems were listed as significant, including insufficient time for farm work, lack of markets, low prices, and lack of appropriate tools. These were cited by more than a third of the farmers. Drought, insect management, and a lack of a dependable supply of labor were cited by about one-third of the respondents. The survey also examined organic farmers' information sources. They do not use conventional sources of agricultural information, such as the extension service and conventional agricultural media, as much as... |
| Tipo: Journal paper |
Palavras-chave: Surveys and statistics; Research methodology and philosophy; Knowledge management. |
| Ano: 1987 |
URL: http://orgprints.org/22949/1/22949.pdf |
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| Hall, DD; Baker, BP; Franco, J; Jolly, DA. |
| Over the past 50 years, the rapid transformation of agricultural technology has provided the benefits of lower prices and a smaller share of income spent on food. Developing and applying synthetic chemicals was instrumental in lowering costs of production and in increasing yields. Conventional agriculture today relies on substantial use of synthetic chemicals as key inputs. This leads to increasing concern over negative externalities, including risks to both human health and the environment. In response to these concerns, organic food has emerged as a rapidly expanding industry. This paper examines the role of organic agriculture and other low-input farming methods more sustainable within the context of policies designed to reduce negative externalities... |
| Tipo: Journal paper |
Palavras-chave: Markets and trade; Policy environments and social economy. |
| Ano: 1989 |
URL: http://orgprints.org/24350/1/Hall%2CBaker%2CFranco%26Jolly-1989.pdf |
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| Mäder, P.; Pfiffner, L.; Niggli, U.; Balzer, U.; Balzer, F.; Plochberger, A.; Velimirov, A.; Besson, J.-M.. |
| In a long-term field trial in Therwil, Switzerland, the bio-dynamic, bio-organic and conventional farming systems were compared (DOC trial). The present paper focuses on long-term yield development and on product quality of beetroot. Due to the favourable climate and soil, beetroot yields were generally high. The yield of beetroot in both biological systems was about 75 % that of the conventional system, but the input of nitrogen and potassium was about 60 % lower. |
| Tipo: Journal paper |
Palavras-chave: Production systems; Farming Systems; Soil. |
| Ano: 1993 |
URL: http://orgprints.org/26786/1/M%C3%A4der_et_al_1993_AH.pdf |
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| Mäder, P.; Vierheilig, H.; Alt, M.; Wiemken, A.. |
| Various container systems have been described in which soil regions available to hyphae only are separated from the mycorrhizal root region by 30–60 μm mesh screens to study nutrient exchange between plants and fungi in the mycorrhizal symbiosis. The screens designed up to now prevent penetration by roots but allow easy passage of fungal hyphae as well as diffusion or mass flow of water and nutrient solutions. We tested hydrophobic microporous polytetrafluorethylene (PTFE) membranes (GORE-TEXR) with 5 to 15 μm diameter pores in an attempt to obtain a better seal between compartments and to prevent uncontrolled nutrient transport by diffusion or mass flow. We found that these membranes completely prevented diffusion or mass flow of ions between two soil... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 1993 |
URL: http://orgprints.org/26785/1/Maeder_et_al_1993_PS.pdf |
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| van Elsen, Thomas; Scheller, Ute. |
| Die regionale Gliederung der Feldflur unterscheidet sich je nach Nutzungsgeschichte der Agrarlandschaft erheblich. Die Bedeutung einer stark gegliederten Feldflur für artenreiche Ackerwildkraut-Gesekkschaften wird anhand floristischer und vegetationskundlicher Untersuchungen in zwei benachbarten Gebieten beiderseits der hessisch-thüringischen Grenze dargestellt. Teile des nordhessischen Werra-Meißner-Kreises sind noch heute durch eine infolge Realteilungs-Erbrechts zersplitterte Feldflur und das Vorherrschen von Nebenerwerbs-Landwirtschaft geprägt, während im thüringischen Obereichsfeld die großflächige Bewirtschaftung durch LPG-Nachfolgeorganisationen dominiert. Die erfolgte Ausräumung der Agrarlandschaft und der damit verbundene Verlust an... |
| Tipo: Journal paper |
Palavras-chave: Weed management; Biodiversity and ecosystem services. |
| Ano: 1994 |
URL: http://orgprints.org/4801/1/vE_Scheller_1994.pdf |
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| Hagel, I.. |
| Einleitung: Biologisch-dynamisch angebaute Möhren (Markenzeichen demeter) werden teilweise zur Saftherstellung verwendet. Einige Verarbeiter garantieren im Möhrensaft bestimmte Mindest- und Höchstwerte für die Mineralstoffe Kalium (K) und Natrium (Na). Wie berichtet wurde, erfüllten einige Partien der angemeldeten Möhren diese Voraussetzung nicht in gewünschtem Maße. In diesen Fällen ist das Qualitätsziel des Verarbeiters und somit auch der Verkauf der Möhren an diesen gefährdet. Aus diesem Grund wurde im Jahre 1993/94 ein Projekt durchgeführt um einen besseren Überblick über die Mineralstoffgehalte von Möhren aus biologisch-dynamischem Anbau zu bekommen. 41 Möhrenproben und 36 Bodenproben der Ernte 1993 wurden untersucht. Zusätzlich wurde ein... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Nutrient turnover Vegetables. |
| Ano: 1995 |
URL: http://orgprints.org/2119/1/2119%2Dhagel%2Di%2D1995%2Dk%2Dn%2Dmoehren.pdf |
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| Hagel, I.. |
| Einleitung: Alle Substanzen der Möhre werden nur durch das ihnen übergeordnete Prinzip des Lebens so gestaltet und bewahrt, dass sie eben als das erscheinen, was wir dann als knackige Möhre mit bestimmtem Geruch und Farbe wahrnehmen können. Ist diese innere Kraft der Möhre innewohnende Kraft aber unzureichend, so entgleiten die Stoffe dem Gesamtverband, und die Möhre verfault. In diesem Moment werden die Mineralstoffe tatsächlich wieder zu dem, was sie ohne die Eingliederung in das Leben sind, nämlich tote Substanzen. Der Mensch, der eine Möhre - oder eine andere Frucht - verzehrt, braucht aber nicht nur die toten Mineralstoffe, sonst könnte er auch prächtig gedeihen mit diesen in Tablettenform. Das tut er nicht. Er braucht zusätzlich die Möglichkeit,... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Vegetables. |
| Ano: 1995 |
URL: http://orgprints.org/2120/1/2120%2Dhagel%2Di%2D1995%2Dlager%2Dmoehren.pdf |
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| Haas, Guido; Geier, Uwe; Schulz, Dirk; Köpke, Ulrich. |
| Der Agrarsektor (Landwirtschaft, Garten- und Weinbau) der Bundesrepublik Deutschland (alt) verbrauchte im Jahre 1990/91 Energie in Höhe von ca. 413,82 PJ, entsprechend einem Anteil von näherungsweise 3,6% des nationalen Gesamtenergie-Einsatzes. Die daraus abgeleitete Kohlendioxid-Emission lag bei insgesamt ca. 27,658 Mio t CO2 und damit näherungsweise bei einem Anteil von insgesamt 3,9% der nationalen Emission. Flächenbezogen verursachte der Agrarsektor eine Kohlendioxid-Emission in Höhe von 2,344 t CO2 je Hektar. Die von der Bundesregierung Deutschlands angestrebte CO2-Minderung von mittelfristig 25 - 30% kann auch innerhalb des Agrarsektors umgesetzt werden. Durch Optimierung der Produktion und den Einsatz von regenerativen Energien wird dieses Ziel... |
| Tipo: Journal paper |
Palavras-chave: Air and water emissions. |
| Ano: 1995 |
URL: http://orgprints.org/13930/1/BuLdw_KlimaD95.pdf |
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| Haas, Guido; Geier, Uwe; Schulz, Dirk; Köpke, Ulrich. |
| Gegenüber der anthropogenen CO2 Freisetzung, die im nichtlandwirtschaftlichen Be¬reich durch Nutzung fossiler Brennstoffe und bezogen auf die Weltlandwirtschaft durch Landnutzungsänderung verursacht werden, sind die Rückbindungsmöglichkeiten der Landwirtschaft gegenüber der globalen Freisetzung gering. Die pflanzliche Senke für CO2 ist umso größer, je höher der produzierte Gesamtertrag, je geringer der zur Synthese der Inhaltsstoffe dissimilierte CO2 Anteil und je höher die Dauer des Erhaltes der synthetisierten organischen Substanz als Erntegut und dem Boden zugeführte Erntereste ist. Berechnungen eines Vergleichs von Betrieben des Organischen und Konventionellen Landbaus ergaben eine etwa 1,3fach höhere CO2 Bindung im Sproß und Erntegut des... |
| Tipo: Journal paper |
Palavras-chave: Environmental aspects; Soil. |
| Ano: 1995 |
URL: http://orgprints.org/13931/1/BuLdw_KlimaSenke95.pdf |
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| Halberg, Niels; Kristensen, Erik Steen; Kristensen, Ib Sillebak. |
| Separate focus on crop fertilization or feeding practices inadequately describes nitrogen (N) loss from mixed dairy farms because of (1) interaction between animal and crop production and between the production system and the manager, and (2) uncertainties of herd N production and crop N utilization. Therefore a systems approach was used to study N turnover and N efficiency on 16 conventional and 14 organic private Danish farms with mixed animal (dairy) and crop production. There were significant differences in N surplus at the farm level (242 kg. N/ha. vs. 124 kg. N/ha. on conventional and organic dairy farms respectively) with a correlation between stocking rate and N surplus. N efficiency was calculated as the output of N in animal products divided by... |
| Tipo: Journal paper |
Palavras-chave: Farm nutrient management. |
| Ano: 1995 |
URL: http://orgprints.org/13010/1/13010.pdf |
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| Znaor, Darko; Bošnjaković, Branko. |
| Today, and especially in the years to come, agriculture, as well as all other human activities, will have to pay much more attention to their environmental impacts. In other words, it is expected that in the near future only technologies which care about environmental aspects will be promoted and accepted by policy makers, scientists, consumers, and society in general. This is not surprising since the environmental problems are among the most urgent ones our civilization will have to tackle and solve. This demand for more careful stewardship of environment is also acknowledged by philosophy of sustainable development - a widely recognized concept and necessity of future development. Although established at the very beginning of this century, ecological... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Farming Systems; Nutrient turnover; Social aspects; Air and water emissions; Soil; Biodiversity and ecosystem services; Food systems; Policy environments and social economy; Environmental aspects. |
| Ano: 1996 |
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| Ciprandi, Olivio; Neto, João Fert. |
| As perspectivas da pequena produção familiar na agricultura constitui um tema controvertido na sociologia e na economia rural. A modernização da agricultura alterou suas relações com o restante da economia. As mudanças na base técnica e as políticas agrícolas determinaram a necessidade de crescimento das escalas mínimas viáveis do ponto de vista técnico e econômico, promovendo um processo de seleção e exclusão entre os pequenos produtores rurais, sem no entanto implicar na eliminação da pequena produção familiar. |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Social aspects. |
| Ano: 1996 |
URL: http://orgprints.org/22655/1/Ciprandi_Perspectivas.pdf |
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| Baur, Bruno; Joschi , Jasmin; Schmid, Bernhard; Hänggi, Ambros; Borcard, Daniel; Stary, Josef; Pedroli-Christen, Ariane; Thommen, G. Heinrich; Luka, Henryk; Rusterholz, Hans-Peter; Oggier, Peter; Ledergerber, Stephan; Erhardt, Andreas. |
| Species richness and abundance of vascular plants and several groups of invertebrates (spiders, oribatid mites, diplopods, grasshoppers and bush crickets, ground beetles, butterflies and terrestrial gastropods) were recorded in three calcareous grasslands (Nenzlingen, Movelier and Vicques) in the northwestern Swiss Jura mountains. Species richness varied both between taxonomical groups and between sites (species richness ranges: 96-116 vascular plants, 60-66 spiders, 18 oribatid mites at each site, 1-7 diplopods, 10-16 grasshoppers and bush crickets, 19-21 ground beetles, 32-46 butterflies and 15-21 terrestrial gastropods). Species overlap (number of species that occured at all sites) was relatively large in terrestrial gastropods (59,1%), butterflies... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Biodiversity and ecosystem services. |
| Ano: 1996 |
URL: http://orgprints.org/20218/1/10_Baur_et_al_1996_Jura.pdf |
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| Registros recuperados: 4.506 | |
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