Journal article

Publication year: 1994

Pages: 327-333

Journal: Biology and Fertility of Soils

Volume number: 18

Issue number: 4

ISSN: 0178-2762

Publisher: Springer

Abstract: 
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 (1989-1990). During this period, four different plots (each with four replicates) were fertilized six times with 150 kg N ha-1 in the form of cattle - pig slurry or NH4NO3. Soil samples (0-20 cm) were analysed at regular intervals for NH4+ and NO3- concentrations. The soil water content was determined gravimetrically. During the first year (1989) total denitrification losses from unfertilized, mineral-fertilized, and animal slurry-amended plots (with or without dicyandiamide) were estimated as 0.2, 3.1, 0.7, and 0.6 kg N ha-1, respectively. During the second year (1990) the denitrification losses were 0.4, 1.3, 0.7, and 0.7 kg N ha-1, respectively. There was a clear relationship between the NO3- concentration or soil water content and the denitrification rate. The results are site-und experiment-specific and cannot be generalized so far.

Harvard Citation style: SCHWARZ, J., KAPP, M., BENCKISER, G. and OTTOW, J. (1994) EVALUATION OF DENITRIFICATION LOSSES BY THE ACETYLENE INHIBITION TECHNIQUE IN A PERMANENT RYEGRASS FIELD (LOLIUM-PERENNE L) FERTILIZED WITH ANIMAL SLURRY OR AMMONIUM-NITRATE, Biology and Fertility of Soils, 18(4), pp. 327-333

APA Citation style: SCHWARZ, J., KAPP, M., BENCKISER, G., & OTTOW, J. (1994). EVALUATION OF DENITRIFICATION LOSSES BY THE ACETYLENE INHIBITION TECHNIQUE IN A PERMANENT RYEGRASS FIELD (LOLIUM-PERENNE L) FERTILIZED WITH ANIMAL SLURRY OR AMMONIUM-NITRATE. Biology and Fertility of Soils. 18(4), 327-333.