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Veröffentlichungen der HSWT

Die chronologische Liste zeigt aktuelle Veröffentlichungen aus dem Forschungsbetrieb der Hochschule Weihenstephan-Triesdorf. Zuständig ist das Zentrum für Forschung und Wissenstransfer (ZFW).

8 Ergebnisse

  • Reinhold Gutser, Prof. Dr. Thomas Ebertseder, Anderson Weber, Martine Schraml, Prof. Dr. Urs Schmidhalter

    Nitrogen release from organic fertilizers after short- and long-term application to arable land (2005) Posterbeitrag zum XV International Plant Nutrition Congress, 14.-19. September 2005 in Beijing (China) .

  • Reinhold Gutser, Prof. Dr. Thomas Ebertseder, Anderson Weber, Martine Schraml, Prof. Dr. Urs Schmidhalter

    • Berechtigungen:  Peer Reviewed

    Short-term and residual availability of nitrogen after long-term application of organic fertilizers on arable land (2005) Journal of Plant Nutrition and Soil Science 168 (4), S. 439-446. DOI: 10.1002/jpln.200520510

  • Reinhold Gutser, Prof. Dr. Thomas Ebertseder

    Grundregeln der guten fachlichen Praxis für den Einsatz organischer Düngemittel (2005) Tagungsband "Nährstoffmanagement, Bodenfruchtbarkeit und nachhaltige Landwirtschaft" zur Tagung des Verbandes der Landwirtschaftskammern e.V. (VLK) und des Bundesarbeitskreises Düngung (BAD) in Frankfurt/Main 2005 , S. 43-59.

  • Prof. Dr. Thomas Ebertseder, Prof. Dr. Urs Schmidhalter, Reinhold Gutser, Prof. Dr. Ulrich Hege, Stefan Jungert

    Evaluation of mapping and on-line nitrogen fertilizer application strategies in multi-year and multi-location static field trials for increasing nitrogen use efficiency of cereals (2005) Precision Agriculture '05, Wageningen Academic Publishers , S. 327-335.

    Mapping and on-line (sensor) variable rate nitrogen fertiliser application strategies were tested in static field trials for three years and in several locations. We determined whether they can enhance nitrogen use efficiency of cereals as compared to optimal uniform nitrogen application while still maintaining yields. In general, high yields were found on field sites representing moderate infield variability. Despite highly contrasting weather conditions between years, similar responses were observed between lower and higher yield zones and the effects of the different strategies were found to be relatively consistent. The results indicate considerable potential to increase nitrogen use efficiency while simultaneously maintaining yields. The mapping approach, which considers the long-term yield potential, indicated substantial gains for the environment in areas of lower yield productivity and fertile colluvial deposit zones with average savings of 34 and 17 kg N ha-1,whereas the sensor approach led to a reduction in nitrogen application on sites with high yield productivity of about 8 kg N ha-1. A combination of the approaches could further increase the benefit for the environment and represent a new standard for the good code of agricultural practice in heterogeneous fields.

  • Prof. Dr. Thomas Ebertseder, Reinhold Gutser, Ludwig Nätscher

    Humusreproduktion organischer Düngerstoffe in Abhängigkeit von der Intensität der N-Düngung in Langzeitexperimenten (2004) Vortrag bei dem 116. VDLUFA-Kongress, 13.-17. September 2004 in Rostock .

  • Prof. Dr. Thomas Ebertseder, Reinhold Gutser, Prof. Dr. Ulrich Hege

    Steigerung der N-Effizienz durch teilflächenangepasste Düngestrategien (2004) Vortrag bei der Jahrestagung der Deutschen Gesellschaft für Pflanzenernährung, 01.-03. September 2004 in Göttingen .

  • Prof. Dr. Thomas Ebertseder, Reinhold Gutser, Prof. Dr. Ulrich Hege, Prof. Dr. Urs Schmidhalter

    Kann die N-Effizienz durch teilflächenspezifische Düngestrategien verbessert werden? (2004) Vortrag bei dem IKB-Workshop "Precision Farming" am 2.-3. Juni 2004 in Freising-Weihenstephan .

  • Prof. Dr. Thomas Ebertseder, Reinhold Gutser, Armin Kilian

    N2O losses from a long-term compost amended soil (2003) Seminar Proceedings: "Applying Compost – Benefits and Needs", Brussels, 22. - 23. November 2001 , S. 87-90.

    Nitrous oxide (N2O) is a trace gas of high ecological relevance because of its catalytic effect on ozone depletion in the stratosphere and its contribution to the global greenhouse effect. About 70 % of the annual global anthropogenic N2O emission derives from agriculture (animal and crop production) (Mosier, 2001). One of the most important sources for N2O is microbial transformation in soil (nitrification, denitrification). Essential factors affecting the formation of nitrous oxide in soil are the availability of oxygen (aeration, water logging), nitrogen (NH4 and NO3 from mineralization and fertilization), and carbon. Therefore usually higher N2O emissions are measured on soils after long-term application of organic fertilizers (Kilian et al., 1998; Mogge et al., 1999; Kaiser and Ruser, 2000). Due to differences in content and quality of organic matter (C/N ratio, degree of humification), compost application, compared with slurry, leads to a higher humus accumulation in soil.. In two field experiments described by Kilian et al. (1998) it was investigated, whether these differences in organic matter effect the N2O emission.

Betreuung der Publikationsseiten

Zentrum für Forschung und Wissenstransfer - Lageplan in Weihenstephan an der HSWT

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Hochschule Weihenstephan-Triesdorf
Zentrum für Forschung und Wissenstransfer
Gebäude H21
Am Staudengarten 9
85354 Freising

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