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  1. No Access

    Article

    Nitrification and denitrification as sources of atmospheric nitrous oxide – role of oxidizable carbon and applied nitrogen

    Laboratory incubation experiments were conducted to study the influence of easily oxidizable C (glucose) and mineral N (NH4 + and NO3 –) on N2O emission, evolution of CO2 and consumption of O2. A flush of N2O wa...

    F. Azam, C. Müller, A. Weiske, G. Benckiser, J. Ottow in Biology and Fertility of Soils (2002)

  2. No Access

    Article

    Influence of the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) in comparison to dicyandiamide (DCD) on nitrous oxide emissions, carbon dioxide fluxes and methane oxidation during 3 years of repeated application in field experiments

    In a 3-year field experiment, the effect of the nitrification inhibitor (NI) 3,4-dimethylpyrazole phosphate (DMPP) on the release of N2O, CO2, and on CH4 oxidation, was examined in comparison to that of dicyandi...

    A. Weiske, G. Benckiser, T. Herbert, J. Ottow in Biology and Fertility of Soils (2001)

  3. No Access

    Article

    Release, movement and recovery of 3,4-dimethylpyrazole phosphate (DMPP), ammonium, and nitrate from stabilized nitrogen fertilizer granules in a silty clay soil under laboratory conditions

    In model experiments under laboratory conditions the release of 3,4-dimethylpyrazole phosphate (DMPP; ENTEC), NH4 +-N, and NO3 –-N from the ENTEC-fertilizer granules placed on a silty clay soil was studied. The ...

    F. Azam, G. Benckiser, C. Müller, J. Ottow in Biology and Fertility of Soils (2001)

  4. No Access

    Chapter

    The new nitrification inhibitor DMPP — effects on gaseous emissions (N2O, CO2, CH4) from soil under field conditions

    From an ecological viewpoint using a nitrification inhibitor (NI) with ammonium based fertilizers may be one potential management strategy to lower the fluxes of trace gases thus mitigating their undesirable e...

    A. Weiske, G. Benckiser, J. C. G. Ottow in Plant Nutrition (2001)

  5. No Access

    Article

    Emissions of nitrous oxide from a constructed wetland using a groundfilter and macrophytes in waste-water purification of a dairy farm

     In less populated rural areas constructed wetlands with a groundfilter made out of the local soil mixed with peat and planted with common reed (Phragmites australis) are increasingly used to purify waste water. ...

    A. Fey, G. Benckiser, J. C. G. Ottow in Biology and Fertility of Soils (1999)

  6. No Access

    Article

    Incomplete Denitrification (NO and N2O) from Nitrate by Streptomyces violaceoruber and S. nitrosporeus Revealed by Acetylene Inhibition and 15N Gas Chromatography-Quadrupole Mass Spectrometry Analyses

    A. Albrecht, J. C. G. Ottow, G. Benckiser, I. Sich, R. Russow in Naturwissenschaften (1997)

  7. No Access

    Article

    N2O emissions from different crop** systems and from aerated, nitrifying and denitrifying tanks of a municipal waste water treatment plant

    Nitrous oxide emissions, nitrate, water-soluble carbon and biological O2 demand (BOD5) were quantified in different crop** systems fertilized with varying amounts of nitrogen (clayey loam, October 1991 to May 1...

    G. Benckiser, R. Eilts, A. Linn, H. -J. Lorch, E. Sümer… in Biology and Fertility of Soils (1996)

  8. No Access

    Chapter

    Lachgas (N2O)-Freisetzung aus Belebungsbecken von Kläranlagen in Abhängigkeit von den Abwassereigenschaften

    Den kommunalen Kläranlagen Deutschlands werden jährlich Stickstoffmengen in der Größenordnung von ca. 0,4 bis 0,5 Tg (Tg = Teragramm; 1 Tg = 1012g) zugeführt. Mit dem gereinigten Abwasser verlassen ca. 0,24 Tg N ...

    E. Sümer, G. Benckiser, J. C. G. Ottow in Ökologie der Abwasserorganismen (1996)

  9. No Access

    Article

    Influence of environmental conditions on the amount of N2O released from activated sludge in a domestic waste water treatment plant

    Waste water purification is characterized by intensive mineralization and nitrification processes. Because of the high O2 demand, temporarily anaerobic conditions may be produced, and denitrification by nitrifyin...

    E. Sümer, A. Weiske, G. Benckiser, J. C. G. Ottow in Experientia (1995)

  10. No Access

    Article

    Evaluation of denitrification losses by the acetylene inhibition technique in a permanent ryegrass field (Lolium perenne L.) fertilized with animal slurry or ammonium nitrate

    In a field experiment, the effect of animal slurry, (with and without the nitrification inhibitor dicyandiamide on total denitrification losses estimated by the C2H2 inhibition technique was measured over 2 years...

    L. Schwarz, M. Kapp, G. Benckiser, J. C. G. Ottow in Biology and Fertility of Soils (1994)

  11. No Access

    Article

    Environmental impact of fertilizing soils by using sewage and animal wastes

    The European Community is producing annually about 300 × 106 tons of sewage sludges as well as about 150, 950,160 and 200 tons of domestic, agricultural, industrial and other wastes (street litter, dead leaves et...

    G. Benckiser, T. Simarmata in Fertilizer research (1994)

  12. No Access

    Article

    Effect of an increasing carbon: nitrate-N ratio on the reliability of acetylene in blocking the N2O-reductase activity of denitrifying bacteria in soil

    In model experiments with a silty loam soil the effect of different C : NO inf3 sup- -N ratios on the reliability of C2H2 (1% v/v) in blocking N2O-reductase act...

    T. Simarmata, G. Benckiser, J. C. G. Ottow in Biology and Fertility of Soils (1993)

  13. No Access

    Article

    Effects of concentration, incubation temperature, and repeated applications on degradation kinetics of dicyandiamide (DCD) in model experiments with a silt loam soil

    The kinetics of dicyandiamide (DCD) decomposition were studied (at 80% water-holding capacity) in pretreated and non-pretreated soils, using model experiments. DCD was added in different concentrations (6.7, 1...

    S. S. Rajbanshi, G. Benckiser, J. C. G. Ottow in Biology and Fertility of Soils (1992)

  14. No Access

    Article

    Mineralization kinetics and utilization as an N source of dicyandiamide (DCD) in soil

    S. S. Rajbanshi, G. Benckiser, J. C. G. Ottow in Naturwissenschaften (1992)

  15. No Access

    Chapter

    Mikrobieller Nitratabbau in Unterböden eines Landwirtschaftlich Genutzten Trinkwassereinzugsgebietes

    Die Intensivierung der landwirtschaftlichen Produktion erhöht die Gefahr der NO3 −-Einwaschung in das Grundwasser (Obermann, 1990), Ein Teil der Wasserwerke verfügt noch über tolerierbare Nitratko...

    M. Lehn-Reiser, G. Benckiser, A. Pitzer, J. C. G. Ottow in Altlastensanierung ’90 (1990)

  16. No Access

    Chapter

    Microbial Nitrate Elimination in Subsoils of an Agriculturally Used Water Catchment Area

    Depending on soil type and crop** system the NO 3 − -impact on ground- and drinking water is increasing in areas of intensive agricultural production (Oberman...

    M. Lehn-Reiser, G. Benckiser, A. Pitzer, J. C. G. Ottow in Contaminated Soil ’90 (1990)

  17. No Access

    Article

    Effect of fertilization on exudation, dehydrogenase activity, iron-reducing populations and Fe++ formation in the rhizosphere of rice (Oryza sativa L.) in relation to iron toxicity

    To explain the mechanism of iron toxicity, greenhouse and growth chamber (14CO2 atmosphere) experiments were carried out. In pot experiments (with a typical iron-toxic soil and a fertile clay) we studied the effe...

    G. Benckiser, S. Santiago, H. U. Neue, I. Watanabe, J. C. G. Ottow in Plant and Soil (1984)

  18. No Access

    Article

    N2O-Freisetzung aus Nitrit (Denitrifikation) durch ubiquitare Pilze unter aeroben Bedingungen

    I. Burth, G. Benckiser, J. C. G. Ottow in Naturwissenschaften (1982)