Results 91 to 100 of about 117,009 (239)

Anholocyclic overwintering of Myzus persicae: Host plant selection as a driver for aphid performance and survival

open access: yesAnnals of Applied Biology, Volume 188, Issue 3, Page 732-744, May 2026.
The green peach aphid, Myzus persicae, is the main virus vector in sugar beet. We examine its performance on potential winter hosts as well as the host selection and overwintering success of anholicyclic aphids in order to improve forecasting models for virus outbreaks through targeted monitoring of suitable winter hosts. Abstract Virus yellows (VY) is
Mohamed Matared   +2 more
wiley   +1 more source

Demand of Research and Development in Organic Farming in Europe. Paper prepared for the FAO-Workshop "Research Methodologies in Organic Farming" at the Forschungsinstitut für biologischen Landbau (FiBL), October 1998 [PDF]

open access: yes, 1999
This paper gives an overview of the state of research and extension in the countries of the EU and EFTA and a more detailed view of the situation in the German language region, including information on the transfer of research results into agricultural ...
Willer, Helga, Zerger, Uli
core  

Inline pvT Analysis for Precise Volume Dosing in Injection Molding: Addressing Variability in Recyclate Melts

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 14, April 10, 2026.
Precise In‐line volumetric dosing despite varying material composition. ABSTRACT Precise volumetric dosing of polymer melts is essential for dimensional stability and mass consistency in injection‐molded samples, particularly when melt compressibility influences the effective volume delivered to the cavity. Conventional approaches rely on reference pvT
Matthias Bruchmüller, Florian Puch
wiley   +1 more source

Renaturierung kleiner Lössbäche – ein Beitrag der Ökologischen Landwirtschaft zum Naturschutz [PDF]

open access: yes, 2013
As a part of the interdisciplinary research project ”Integration of nature protection goals with organic farming: an the example from the Hessian ”state domain” [Staatsdomäne] area Frankenhausen”, different restoration measures have been carried out ...
Braukmann, Ulrich   +4 more
core  

Landwirtschaft und Landwirtschaftlicher Betrieb – Legaldefinitionen und Verkehrsanschauung

open access: yesDie Bodenkultur, 2018
Die Legaldefinitionen „Landwirtschaft“ und „landwirtschaftlicher Betrieb“ differieren zwischen dem Recht der Europäischen Union (EU-Recht) und nationalem Recht.
Leidwein Alois
doaj   +1 more source

Dry anaerobic digestion of organic residues on-farm - a feasibility study [PDF]

open access: yes, 2006
Objectives The feasibility study shall answer the following questions: Are there economical and ecological advantages of on-farm dry digestion biogas plants?
Lehto, Marja   +2 more
core  

Klimawandel und Perspektiven der Landwirtschaft in der Metropolregion Hamburg [PDF]

open access: yes, 2010
Die veränderten Klimabedingungen können der Landwirtschaft Chancen bieten, bergen aber auch Risiken. Dabei ist es zum einen stark regional bedingt, ob positive oder negative Auswirkungen überwiegen.
Döll, Sebastian, Schulze, Sven
core  

Der Einfluß ökologischer Produktionsverfahren auf die Betriebsstruktur: eine deskriptive Analyse basierend auf der EU Agrarstrukturerhebung 2000 [PDF]

open access: yes, 2003
Der ökologische Landbau ist durch Richtlinien klar definiert. Einschränkungen durch diese wirken sich auf die Betriebsorganisation aus. Basierend auf aggregierte Daten aus der Agrarstrukturerhebung 2000 wird die Betriebsstruktur von ökologischen und ...
Bichler, Barbara   +2 more
core  

Hybrid Varieties for Organic Cereals? Prospects and acceptance of hybrid breeding for organic production [PDF]

open access: yes, 2006
Hybrid breeding utilizes the advantages characterizing F1 plants in a targeted manner: Vigour, uniformity, and a combination of all dominant traits of the parental lines.
Arncken, Christine, Dierauer, Hansueli
core  

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