Results 21 to 30 of about 16,259 (283)

Quel avenir pour les recherches en productions et santé animales ?

open access: yesINRAE Productions Animales, 2008
La dimension planétaire des problématiques de recherche (développement durable, changement climatique, gestion de la biodiversité, qualité de l’eau, qualité et sécurité de l’alimentation, maladies émergentes, bioénergies), la nécessité d’accroître ...
P. HERPIN, B. CHARLEY
doaj   +1 more source

Future management of arable perennials - an introduction to the project AC/DC-weeds

open access: yesJulius-Kühn-Archiv, 2020
Creeping perennial weeds have strong negative impacts on arable production. The common control practices are intensive inversion tillage and chemical herbicides. However, these traditional methods negatively affect non-target species and the environment.
Zhang, Han   +8 more
doaj   +1 more source

Landscape agronomy: a new field for addressing agricultural landscape dynamics [PDF]

open access: yesLandscape Ecology, 2012
Landscape dynamics increasingly challenge agronomists to explain how and why agricultural landscapes are designed and managed by farmers. Nevertheless, agronomy is rarely included in the wide range of disciplines involved in landscape research. In this paper, we describe how landscape agronomy can help explain the relationship between farming systems ...
Benoît, Marc   +8 more
openaire   +4 more sources

A Genotypic Comparison Reveals That the Improvement in Nitrogen Remobilization Efficiency in Oilseed Rape Leaves Is Related to Specific Patterns of Senescence-Associated Protease Activities and Phytohormones

open access: yesFrontiers in Plant Science, 2019
Oilseed rape (Brassica napus L.) is an oleoproteaginous crop characterized by low N use efficiency (NUE) that is mainly related to a weak Nitrogen Remobilization Efficiency (NRE) during the sequential leaf senescence of the vegetative stages.
Marine Poret   +10 more
doaj   +1 more source

Agriculture, Agronomy, and Political Economy: Some Missing Links [PDF]

open access: yesHistory of Political Economy, 2002
The founding years of political economy coincided with the birth and the goldenage of modernagronomy. Inthe century that separated Jethro Tull from Justus Liebig and Jean-Baptiste Boussingault—after whom agronomy became applied chemistry—political economy underwent fundamental changes, for this was also the period that separated ...
openaire   +2 more sources

Comparison of seed yielding performance of deltamethrin unprotected and protected plants of five cowpea cultivars at Foumbot, Cameroon [PDF]

open access: yesTropicultura, 1991
Losses in seed yields due to damage by seed insect pests were studied on unsprayed and sprayed cowpea plants at Foumbot, located in the western highland savanna zone of Cameroon, in 1988 and 1989. Major pests recorded in the study site were Melanagromyza
Parh, LA.
doaj  

Predicting soil water and mineral nitrogen contents with the STICS model for estimating nitrate leaching under agricultural fields [PDF]

open access: yes, 2012
The performance of the STICS soil-crop model for the dynamic prediction of soil water content (SWC) and soil mineral nitrogen (SMN) in the root zone (120 cm) of seven agricultural fields was evaluated using field measurements in a coarse-grained alluvial
Justes, Eric   +2 more
core   +2 more sources

BLACK POLYPROPYLENE MULCH TEXTILE IN ORGANIC AGRICULTURE [PDF]

open access: yes, 2010
Black polyethylene mulch is used for weed control in a range of crops under the organic system. The use of black polypropylene mulch is usually restricted to perennial crops.
Dvorak, Petr   +5 more
core  

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

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