Enumeration of denitrifying microbial populations in turf
Denitrifer populations of a silt and silt loam soil under a Kentucky bluegrass turf were enumerated using the most probable number (MPN) procedure. The influence of soil texture, soil depth, soil moisture, and additions of nitrate fertilizer on denitrifier populations were determined.
Saturated soil conditions increased denitrifier populations 87-fold in the silt soil and 121-fold in the silt loam soil. Denitrifier populations did not differ significantly between soil depths and additions of fertilizer nitrate did not influence populations.
Key wordsDenitrification Nitrogen Poa pratensis Soil moisture
Unable to display preview. Download preview PDF.
- 1.Alexander M 1982In Agronomy 9, A L Pageet al. (eds.) 815–820. Am. Soc. Agr. Madison, WI.Google Scholar
- 2.Cho C M 1982 Soil Sci. Soc. Am. J. 46, 756–762.Google Scholar
- 3.Fillery I R P 1983In Gaseous Loss of Nitrogen from Plant-Soil Systems 9, 33–64. Eds. J R Freney and J R Simpson. Martinus Nijhoff/Dr. W. Junk Publishers. The Hague, Netherlands.Google Scholar
- 4.Focht D D 1978In Nitrogen in the Environment Eds. D R Nielsen and J G MacDonald2, 433–480. Academic Press, NY.Google Scholar
- 5.Rolston D Eet al. 1982. Soil Sci. Soc. Am. J 46, 289–296.Google Scholar
- 6.Ryden J C and Lund L J 1980 Soil Sci. Soc. Am. J. 44, 505–511.Google Scholar
- 8.Tiedje J M 1982In Agronomy 9, Eds. A L Pageet al. 1011–1024. Am. Soc. Agron., Madison, WI.Google Scholar
- 9.Volz M G 1977 Soil Sci. Soc. Am. J. 41, 549–551.Google Scholar