A5009604315- Astro and Planetary Science
- Soil Carbon and Nitrogen Dynamics
- Atmospheric Ozone and Climate
- Astrophysics and Star Formation Studies
- Planetary Science and Exploration
- Soil and Water Nutrient Dynamics
- Agriculture Sustainability and Environmental Impact
- Phosphorus and nutrient management
- Organic Food and Agriculture
- Crop Yield and Soil Fertility
- Agriculture, Plant Science, Crop Management
- Spacecraft and Cryogenic Technologies
- Wheat and Barley Genetics and Pathology
- Sustainable Agricultural Systems Analysis
- Atmospheric chemistry and aerosols
- Advanced Chemical Physics Studies
- Mechanical Engineering and Vibrations Research
- Vibration and Dynamic Analysis
- Mycorrhizal Fungi and Plant Interactions
- Agriculture and Biological Studies
- Legume Nitrogen Fixing Symbiosis
- Agronomic Practices and Intercropping Systems
- Atomic and Molecular Physics
- Isotope Analysis in Ecology
- Mycotoxins in Agriculture and Food
Ames Research Center
2019-2023
Bay Area Environmental Research Institute
2019-2021
National Aeronautics and Space Administration
2021
Centre National de la Recherche Scientifique
2004-2019
Institut Pierre-Simon Laplace
2019
Laboratoire atmosphères, milieux, observations spatiales
2016-2019
Université Paris-Saclay
2019
Université de Versailles Saint-Quentin-en-Yvelines
2019
Sorbonne Université
2019
Jet Propulsion Laboratory
2016-2018
An understanding of agroecosystems is key to determining effective farming systems. Here we report results from a 21-year study agronomic and ecological performance biodynamic, bioorganic, conventional systems in Central Europe. We found crop yields be 20% lower the organic systems, although input fertilizer energy was reduced by 34 53% pesticide 97%. Enhanced soil fertility higher biodiversity plots may render these less dependent on external inputs.
Abstract Consumers have become more aware of healthy and safe food produced with low environmental impact. Organic agriculture is particular interest in this respect, as manifested by 5.768 million hectares managed pursuant to Council Regulation (EEC) 2092/91 Europe. However, there can be a considerable risk that the avoidance chemical inputs organic farming will result poor quality. Here results study on quality wheat ( Triticum aestivum L.) grown 21 year agrosystem comparison between...
Extrasolar satellites are generally too small to be detected by nominal searches. By analogy the most active body in Solar System, Io, we describe how sodium (Na I) and potassium (K $\textit{gas}$ could a signature of geological activity venting from an otherwise hidden exo-Io. Analyzing $\sim$ dozen close-in gas giants hosting robust alkaline detections, show that Io-sized satellite can stable against orbital decay below planetary tidal $\mathcal{Q}_p \lesssim 10^{11}$. This energy is...
BACKGROUND: For organic farming, cultivars are required with high nutrient use efficiency under limited conditions. Arbuscular mycorrhizal fungi (AMF) known to contribute uptake low input We compared (NUE) of old and modern organically conventionally bred in conventional systems assessed AMF-root colonisation (AMF-RC) relation concentrations. RESULTS: Cultivars had a statistically significant effect on nitrogen (N) phosphorus (P) concentrations NUE parameters, whereas no genotype ×...
Abstract BACKGROUND: A challenge in wheat ( Triticum aestivum L.) breeding for organic farming is to provide high‐yielding cultivars with appropriate baking qualities under the limiting conditions of fertiliser input and without use pesticides. Cultivars are usually tested on conventional farms. However, field properties may differ owing spatial variations soils microclimate heterogeneity. In this study, old, organically bred conventionally were systems DOK long‐term system comparison trial....
Abstract The paleomagnetic investigations carried out in the 70's on Oligo-Miocene volcanics of Sardinia have demonstrated that island was turned by 35-30 degrees clockwise from 33 Ma up to 21-20.5 and rotated counterclockwise a few million years [De Jong et al., 1969, 1973; Bobier Coulon, 1970; Coulon 1974; Manzoni, 1974, 1975; Bellon 1977; Edel Lortscher, Edel, 1979, 1980]. Since then, end rotation fixed at 19 Montigny al. [1981] subject discussions several studies associating...
Physically separated soil organic matter (SOM) fractions may take different functions in N dynamics. We studied the effect of long‐term (OM) management and biological activity on incorporation added with mineral amendments into aggregate size density fractions. applied 15 N‐labeled sheep feces, urine, fertilizer to microplots installed plots conventional (CONMIN) bio‐organic (BIOORG) cropping systems. Soil sampled 112 d after amendment was macro‐, microaggregates, microstructures. Aggregates...
Abstract We catalog the global inventory of Europa's cycloids, arcuate fractures whose paths have been linked to diurnal tidal stress, and use locations orientations their cusps further test formation mechanism cycloids constrain rotation state. find that distribution is better explained by a precessing spin pole than longitude translation due nonsynchronous rotation, which consistent with studies strike‐slip faults linear fractures. also small obliquity can reproduce most cycloid at current...