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| Registros recuperados: 59 | |
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| Fried, Padruot M.; Zihlmann, Urs; Strasser, Fredi; Tschachtli, Ruedi; Ammann, Helmut; Dubois, David. |
| Long-term trials are necessary not only to judge agronomic and ecological indicators when studying organic farming, but also to analyze and describe economic parameters. From 1997-2002, an organic arable farming system (Bio) was compared with two Integrated farming systems (IP intensive and IP extensive) on 6 plots in a 6-year crop rotation at Burgrain near Lucerne, Switzerland. The 6 plots were subdivided into 3 subplots of 0.65 ha each. In the organic system, the input of fertilizer and pesticides was substantially reduced, which resulted in a yield reduction of 19% over all 4 arable crops and of 14% if the temporary lays are included. Nevertheless, the organic system showed an excellent net profit, mainly due to the higher prices paid to the farmers for... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Specific methods. |
| Ano: 2005 |
URL: http://orgprints.org/4352/4/Fried_etal_4p_revised%2Ded.doc |
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| Hoa, Thi Do; Whitney, Cory W.; Luedeling, Eike. |
| The mountainous northwest of Vietnam is home for the majority of the country’s ethnic minorities. Poverty and food insecurity are common in the region, increasing population and land scarcity have induced the expansion of agricultural areas and consequent decline of land productivity due to soil erosion and land degradation. Local farmers have begun to practice agroforestry through the introduction of high value trees into traditional cropping systems with various combinations of timber, fruit, nut forage trees and annual crops. However, because of inherent production risks and many remaining uncertainties, assessing the long-term performance of agroforestry has remained challenging. We simulated prospective system benefits of agroforestry options by... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Farming Systems; Specific methods. |
| Ano: 2018 |
URL: http://orgprints.org/34099/1/Do%20et%20al%202018.pdf |
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| Lagerberg, Charlotte. |
| Detta utbildningsmaterial om emergianalys vänder sig till universitets- och högskolestuderande samt övriga intresserade av analysverktyget emergianalys. Materialet består av en animerad textdel, som översiktligt beskriver metodiken och teorin bakom verktyget, samt en serie exempel och övningsmallar. Exempel och övningsmallar är avsedda att stimulera till egen akademisk lek med verktyget emergianalys. Utbildningsmaterialet gör inte anspråk på att vara heltäckande utan används med fördel i samband med en kurs eller gruppdiskussioner kring resursanvändning och miljöpåverkan ur ett systemperspektiv. Eftersom metodiken kring emergianalys utvecklas mycket snabbt, rekommenderar jag läsaren att komplettera med den senaste vetenskapliga litteraturen inom... |
| Tipo: Web product |
Palavras-chave: Research methodology and philosophy; Specific methods. |
| Ano: 2000 |
URL: http://orgprints.org/2845/1/emergi.pdf |
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| Costantini, E.A.C.; Priori, S.; Landi, S.; Lagomarsino, A.; Castaldini, M.; Giffard, B.; Fulchin, E.; Tardaguila, J.; Schroers, H.J.; Martensson, A.; Tangolar, S.; Akca, E.. |
| The purpose of this guideline is to describe the methods used during ReSolVe project for soil functionality assessment, so they can be implemented in similar studies. A brief introduction first underlines what are the main functions of soil and why maintaining an optimal soil functionality is particularly of major interest in viticulture. Then the different protocols selected for ReSolVe project and this guideline are presented according to the following classification: - Part I: assessment of soil physical and chemical features; - Part II: assessment of soil biological features (ecosystem service provision and providers); - Part III: assessment of rhizosphere biological features; - Part IV: assessment of grapevine quantitative and qualitative... |
| Tipo: Report |
Palavras-chave: Soil quality; Soil biology; Specific methods; Nutrient turnover; Soil; Technology transfer; Biodiversity and ecosystem services; Research methodology and philosophy; Viticulture. |
| Ano: 2018 |
URL: http://orgprints.org/33864/1/2018.09.19%20Protocols_for_soil_functionality_assessment_in_vineyards.pdf |
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| Busscher, Nicolaas; Kahl, Johannes; Mergardt, Gaby; Andersen, Jens-Otto; Huber, Machteld; Meier-Ploeger, Angelika. |
| In der vorliegenden Arbeit wird der wissenschaftliche Ansatz, die Methode zu validieren beschrieben und der Einfluss der Kammerbedingungen auf die Kristallisation systematisch untersucht und statistisch ausgewertet. Die Klimakonditionen haben einen signifikanten Einfluss auf die Streuung der Werte, sowohl innerhalb eines Kammerdurchgangs, als auch im Vergleich zwischen zwei Kammerdurchgängen. Bei der Einstellung der Startfeuchte auf dem Ring variieren die Feuchtenwerte die dafür erreicht werden müssen von Kammer zu Kammer; weitere Untersuchungen werden zeigen, ob dies auf die unterschiedlichen Abstände beim Aufbau der Kammern (bis zu 2 Jahren Differenz) an den einzelnen Orten zurückzuführen ist (Adaption des Werkstoffes). Eine Vergleichbarkeit von... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Specific methods. |
| Ano: 2003 |
URL: http://orgprints.org/1027/1/busscher%2Det%2Dal%2D2003%2DCuCl2%2DKristallisation.pdf |
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| Entz, Martin; Hoeppner, J.W.; Tenuta, M.; Bamford, K.C.; Holliday, N.; Wilson, Leanne C.. |
| The Glenlea long-term rotation study, located near Winnipeg, is Canada’s oldest conventional vs organic crop comparison study. Since 1992, three farming systems (grain only; grain with green manure crops; combined grain-forage rotation) were evaluated under two management systems (organic and conventional). Organic system ranked higher than conventional systems in energy efficiency and biodiversity while conventional system ranked higher in yield, weed management and soil nutrient status. However, significant farming system by management interactions were observed for many variables. The basis for these interactions was enhanced performance of organic production in the combined grain-forage system compared with the grain only system. Organic crop... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Specific methods. |
| Ano: 2005 |
URL: http://orgprints.org/4338/4/Entz_etal_4p_revised%2Ded.doc |
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| Rasmussen, Ilse A.; Askegaard, Margrethe; Olesen, Jørgen E.. |
| In long-term organic crop rotation experiments for cereal production, stubble cultivation to control perennial weeds increased nitrogen leaching compared to catch crops grown after harvest. Stubble cultivation contributed to the control of Elymus repens on a sandy soil, but not to the control of Cirsium arvense on a loamy soil. Manure application had a tendency to decrease E. repens density in one rotation at the sandy soil. Grass-clover green manure decreased C. arvense in the succeeding crops. Despite high infestations of perennial weeds, yields were at the same level with as without stubble cultivation. The results point to an important dilemma in organic farming: should the farmer control perennial weeds in the stubble at the expense of losing nitrogen... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Specific methods. |
| Ano: 2005 |
URL: http://orgprints.org/4451/4/Rasmussen_etal_4p_revised%2Ded.doc |
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| Gambelli, Danilo; Vairo, Daniela; Zanoli, Raffaele. |
| The development of scenario analysis (SA) to assist decision makers and stakeholders has been growing over the last few years through mainly exploiting qualitative information provided by experts. In this study, we present SA based on the use of qualitative data for strategy planning. We discuss the potential of SA as a decision-support tool, and provide a structured approach for the interpretation of SA data, and an empirical validation of expert evaluations that can help to measure the consistency of the analysis. An application to a specific case study is provided, with reference to the European organic farming business. |
| Tipo: Journal paper |
Palavras-chave: Specific methods. |
| Ano: 2010 |
URL: http://orgprints.org/19379/1/SAforDSSfinal_corretto.pdf |
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| Bloksma, Joke; Huber, Machteld; Northolt, Martin; Zanen, Marleen; Jansonius, Pieterjans. |
| We found clear correlations between management measures, tree characteristics and fruit characteristics. This means that growers can regulate apple quality during the growing season. On the basis of the two apple experiments, we can distinguish respective sets of growth and differentiation parameters and evaluate them in the light of conventional fruit cultivation science. Our results have little new value for fruit growing in practice, however. The value of our research lies in the approach developed to draw up a quality concept and the way in which we can apply this concept to crops about which little knowledge exists regarding the relationship between management measures, crop characteristics and product quality characteristics. Our research also offers... |
| Tipo: Report |
Palavras-chave: Composting and manuring; Fruit and berries; Specific methods. |
| Ano: 2004 |
URL: http://orgprints.org/2716/1/gvv04.pdf |
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| Vanhala, P.; Kurstjens, D.; Ascard, J.; Bertram, A.; Cloutier, D.C.; Mead, A.; Raffaelli, M.; Rasmussen, Jesper. |
| A prerequisite for good research is the use of appropriate methodology. In order to aggregate sound research methodology, this paper presents some tentative guidelines for physical weed control research in general, and flame weeding, weed harrowing and intra-row cultivation in particular. Issues include the adjustment and use of mechanical weeders and other equipment, the recording of impact factors that affect weeding performance, methods to assess effectiveness, the layout of treatment plots, and the conceptual models underlying the experimental designs (e.g. factorial comparison, dose response). First of all, the research aims need to be clearly defined, an appropriate experimental design produced and statistical methods chosen accordingly. Suggestions... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management; Specific methods. |
| Ano: 2004 |
URL: http://orgprints.org/2445/1/Guidelines.pdf |
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| Beste, Andrea. |
| In der vorliegenden Arbeit wird der Vorschlag gemacht, das Bodengefüge aufgrund seiner nach aktuellem Forschungsstand bekannten, vielfältigen Verknüpfung mit der Lebensraum-, Regelungs-, und Produktionsfunktion als geeigneten Indikator für die ökologische Funktionsfähigkeit des Bodens heranzuziehen. Mit der Erweiterten Spatendiagnose nach HAMPL/KUSSEL (ESD) wird eine aus der GÖRBING-Spatendiagnose entwickelte, einfache, wissenschaftlich besser auswertbare Version der Gefügezustandsbeurteilung mit dem Spaten vorgestellt, die den Empfehlungen der ISCO (Internationale Gesellschaft für Bodenschutz) in Bezug auf leichte Vermittelbarkeit und geringen technischen Aufwand sehr nahe kommt. Das Forschungsziel der Arbeit ist es, die Aussagekraft der in der ESD zur... |
| Tipo: Thesis |
Palavras-chave: Soil quality; Specific methods. |
| Ano: 2003 |
URL: http://orgprints.org/716/1/beste%2Da%2D2002%2Ddiss%2Dde.pdf |
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| Wittwer, Raphaël; Tombez, Grégoire; van der Heijden, Marcel. |
| Ein besseres Verständnis der Dynamik hinter der Freisetzung von pflanzenverfügbaren Nährstoffen aus Boden oder organischen Dünger und eine Verbesserung der Nährstoffverwertung von Ackerfrüchten sind zwei wichtige Herausforderungen, um die Produktivität im ökologischem Ackerbau zu erhöhen. Doch diese Prozesse sind stark sowohl von biotischen (z.B. Bodenmikroben) als auch abiotischen (z.B. Temperatur, Niederschlag, Bodenfeuchtigkeit, Bodenstruktur) Faktoren beeinflusst und erschweren effiziente Untersuchungen. Fernbilderkundung-Technologien (remote sensing) haben sich in den letzten Jahren stark weiterentwickelt und bieten heute neue Ansätze und Methoden, um der Ernährungsstatus von Pflanzen sowie die Dynamik des Pflanzenwachstums nicht destruktiv zu... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Surveys and statistics; Specific methods; Nutrient turnover; Crop husbandry. |
| Ano: 2015 |
URL: http://orgprints.org/27132/1/27132_wittwer.pdf |
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| Munkholm, Lars J.. |
| Soil fragmentation is a primary aim in most tillage operations in order to create a soil environment favourable for crop establishment and growth. Soils vary around the world from those exhibiting a self-mulching nature to those of a hardsetting nature. These extremes have been reported for Australian and other tropical and subtropical soils. In humid temperate climates, soil tillage is generally needed in order to produce a favourable environment for crop establishment and growth. The ease of preparing a favourable arable layer depends on complex interactions between climate, soil and the tillage implement. Especially soil water affects soil strength and fragmentation properties and thereby the ease of preparing a suitable arable layer. Soil management... |
| Tipo: Thesis |
Palavras-chave: Soil quality; Production systems; Soil tillage; Specific methods; Soil biology. |
| Ano: 2002 |
URL: http://orgprints.org/56/1/Lars_samle_syntese.pdf |
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| Registros recuperados: 59 | |
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