Search Results - "Schmidhalter, Urs"

Digital Counts of Maize Plants by Unmanned Aerial Vehicles (UAVs) by Gnädinger, Friederike, Schmidhalter, Urs

“…Precision phenotyping, especially the use of image analysis, allows researchers to gain information on plant properties and plant health. Aerial image…”
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The Application of EM38: Determination of Soil Parameters, Selection of Soil Sampling Points and Use in Agriculture and Archaeology by Heil, Kurt, Schmidhalter, Urs

“…Fast and accurate assessment of within-field variation is essential for detecting field-wide heterogeneity and contributing to improvements in the management…”
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An Evaluation of Different NIR-Spectral Pre-Treatments to Derive the Soil Parameters C and N of a Humus-Clay-Rich Soil by Heil, Kurt, Schmidhalter, Urs

“…Near-infrared reflectance spectroscopy (NIRS) was successfully used in this study to measure soil properties, mainly C and N, requiring spectral…”
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Theory and Guidelines for the Application of the Geophysical Sensor EM38 by Heil, Kurt, Schmidhalter, Urs

“…Characterization of spatial soil variability is key for a better understanding of soils. To arrive at such information geophysical techniques have been used in…”
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Sensitivity of Vegetation Indices for Estimating Vegetative N Status in Winter Wheat by Prey, Lukas, Schmidhalter, Urs

“…Precise sensor-based non-destructive estimation of crop nitrogen (N) status is essential for low-cost, objective optimization of N fertilization, as well as…”
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Urease inhibitors: opportunities for meeting EU national obligations to reduce ammonia emission ceilings by 2030 in EU countries by Hu, Yuncai, Schmidhalter, Urs

“…Abstract Anthropogenic NH 3 emissions, primarily from agriculture, have led to significant damage to human health and ecosystems. In the European Union (EU),…”
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Comparison of active and passive spectral sensors in discriminating biomass parameters and nitrogen status in wheat cultivars by Erdle, Klaus, Mistele, Bodo, Schmidhalter, Urs

“…• Evaluation of multiple sensors’ predictive performance and capability in discriminating effects of four N rates on crop health of seven wheat cultivars grown…”
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Temporal and Spectral Optimization of Vegetation Indices for Estimating Grain Nitrogen Uptake and Late-Seasonal Nitrogen Traits in Wheat by Prey, Lukas, Schmidhalter, Urs

“…Grain nitrogen (N) uptake (GNup) in winter wheat ( L.) is influenced by multiple components at the plant organ level and by pre- and post-flowering N uptake…”
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Evaluating RGB Imaging and Multispectral Active and Hyperspectral Passive Sensing for Assessing Early Plant Vigor in Winter Wheat by Prey, Lukas, von Bloh, Malte, Schmidhalter, Urs

“…Plant vigor is an important trait of field crops at early growth stages, influencing weed suppression, nutrient and water use efficiency and plant growth…”
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High-Throughput Field Phenotyping Traits of Grain Yield Formation and Nitrogen Use Efficiency: Optimizing the Selection of Vegetation Indices and Growth Stages by Prey, Lukas, Hu, Yuncai, Schmidhalter, Urs

“…High-throughput, non-invasive phenotyping is promising for evaluating crop nitrogen (N) use efficiency (NUE) and grain yield (GY) formation under field…”
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Daytime and seasonal reflectance of maize grown in varying compass directions by Buchhart, Claudia, Schmidhalter, Urs

“…High temporal and spatial resolution is required to meet the challenges of changing plant characteristics over time. Solar radiation and reflectance of…”
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High-Throughput Phenotyping of Wheat and Barley Plants Grown in Single or Few Rows in Small Plots Using Active and Passive Spectral Proximal Sensing by Barmeier, Gero, Schmidhalter, Urs

“…In the early stages of plant breeding, breeders evaluate a large number of varieties. Due to limited availability of seeds and space, plot sizes may range from…”
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High-Throughput Field Phenotyping of Leaves, Leaf Sheaths, Culms and Ears of Spring Barley Cultivars at Anthesis and Dough Ripeness by Barmeier, Gero, Schmidhalter, Urs

“…To optimize plant architecture (e.g., photosynthetic active leaf area, leaf-stem ratio), plant physiologists and plant breeders rely on destructively and…”
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Carbon isotope discrimination as a key physiological trait to phenotype drought/heat resistance of future climate-resilient German winter wheat compared with relative leaf water content and canopy temperature by Kunz, Karolin, Hu, Yuncai, Schmidhalter, Urs

“…Climate change is expected to influence crop growth through frequent drought and heat extremes, and thus, drought and heat tolerance are of increasing…”
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Annual consumption and types of synthetic nitrogen fertilizers: Ammonia emission indicators for mitigation strategies in the European Union by Hu, Yuncai, Schmidhalter, Urs

“…Anthropogenic ammonia (NH3) emissions are primarily derived from agricultural activities. NH3 emissions from synthetic nitrogen (N) fertilizers are associated…”
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Data fusion of spectral, thermal and canopy height parameters for improved yield prediction of drought stressed spring barley by Rischbeck, Pablo, Elsayed, Salah, Mistele, Bodo, Barmeier, Gero, Heil, Kurt, Schmidhalter, Urs

“…•Data fusion of spectral, thermal and distance information can improve statistical yield prediction.•Distance sensors can add substantial information to spring…”
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High-Throughput Estimation of Crop Traits: A Review of Ground and Aerial Phenotyping Platforms by Jin, Xiuliang, Zarco-Tejada, Pablo J., Schmidhalter, Urs, Reynolds, Matthew P., Hawkesford, Malcolm J., Varshney, Rajeev K., Yang, Tao, Nie, Chengwei, Li, Zhenhai, Ming, Bo, Xiao, Yonggui, Xie, Yongdun, Li, Shaokun

“…Crop yields need to be improved in a sustainable manner to meet the expected worldwide increase in population over the coming decades as well as the effects of…”
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Advancing High-Throughput Phenotyping of Wheat in Early Selection Cycles by Hu, Yuncai, Knapp, Samuel, Schmidhalter, Urs

“…Enhancing plant breeding to ensure global food security requires new technologies. For wheat phenotyping, only limited seeds and resources are available in…”
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Passive Reflectance Sensing and Digital Image Analysis Allows for Assessing the Biomass and Nitrogen Status of Wheat in Early and Late Tillering Stages by Elsayed, Salah, Barmeier, Gero, Schmidhalter, Urs

“…Proximal remote sensing systems depending on spectral reflectance measurements and image analysis can acquire timely information to make real-time management…”
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Quantification of mycorrhizal water uptake via high-resolution on-line water content sensors by Ruth, Bernhard, Khalvati, Mohamedali, Schmidhalter, Urs

“…The benefits of mycorrhizas for host plants are well known for a large number of species. However, experimental evaluations of the hyphal contribution to the…”
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