Full TGIF Record # 31009
Item 1 of 1
Publication Type:
i
Refereed
Author(s):De Klein, C. A. M.; Van Logtestijn, R. S. P.
Author Affiliation:Department of Plant Ecology and Evolutionary Biology, Utrecht University, The Netherlands
Title:Denitrification in the top soil of managed grasslands in The Netherlands in relation to soil type and fertilizer level
Source:Plant and Soil. Vol. 163, No. 1, June 1994, p. 33-44.
# of Pages:12
Publishing Information:Dordrecht, Netherland: Martinus Nijhoff Publishers
Related Web URL:http://link.springer.com/article/10.1007/BF00033938
    Last checked: 10/14/2015
    Notes: Abstract only
Keywords:TIC Keywords: Acetylene inhibition technique; Denitrification; Nitrogen fertilizers; Peat; Loam soils; Sand; Seasonal variation; Soil water
Abstract/Contents:"During the growing season of 1989 and 1990 denitrification measurements were carried out in grazed perennial rye-grass swards on sand, loam and peat soils, each receiving two rates of nitrogen fertilizer. Denitrification was measured monthly, using a coring system with acetylene inhibition. Denitrification rates were highly variable throughout the season but tended to increase with increasing soil water content. High denitrification rates (0.1 kg N ha-1 day-1) were observed in spring and autumn, and were associated with rainfall or grazing in combination with a high soil water content. Estimated seasonal denitrification losses ranged between 1 and 21% of the fertilizer input, and showed no significant effect of fertilizer application rate. In 1990, denitrification losses were significantly higer on the loam soil. However, this difference was rather a result of different timing of sampling after rainfall or grazing, than of soil type differences. In the growing season of 1991, field experiments were carried out in the same sites, to measure denitrification losses during the first 8 to 10 days after fertilizer application. Fertilizer application significantly increased denitrification rates. Loses following one fertilizer application ranged from 6 to 9% of the fertilizer input, but only a wet soil."
Language:English
References:29
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
De Klein, C. A. M., and R. S. P. Van Logtestijn. 1994. Denitrification in the top soil of managed grasslands in The Netherlands in relation to soil type and fertilizer level. Plant Soil. 163(1):p. 33-44.
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