Agriculture Reference
In-Depth Information
Steinberg, D.A., R.V. Pouyat, R.W. Parmelee, and P.M. Groffman. 1997. Earthworm abundance and nitrogen
mineralization rates along an urban-rural land use gradient, Soil Biol. Biochem ., 29, 427Ï430.
Stinner, B.R., D.A. McCartney, J.M. Blair, R.W. Parmelee, and M.F. Allen. 1997. Earthworm effects on crop
and weed biomass and N content in organic and inorganic fertilized agroecosystems, Soil Biol.
Biochem ., 29, 423Ï426.
Stout, J.D. and K.M. Goh. 1980. The use of radiocarbon to measure the effects of earthworms on soil
development, Radiocarbon, 22, 892Ï896.
Surez, E.R., T. J. Fahey, P.M. Groffman, P.J. Bohlen, and M.C. Fisk. 2004. Effects of exotic earthworms on
soil phosphorus cycling in two broadleaf temperate forests, Ecosystems , in press.
Subler, S., C.M. Baranski, and C.A. Edwards. 1997. Earthworm additions increased short-term nitrogen
availability and leaching in two grain-crop agroecosystems, Soil Biol. Biochem ., 29, 413Ï421.
Svensson, B.H., U. Bostrom, and L. Klemedtson. 1986. Potential for higher rates of denitrification in earthworm
casts than in the surrounding soil, Biol. Fertil. Soil , 2, 147Ï149.
Syers, J.K. and J.A. Springett. 1984. Earthworms and soil fertility, Plant Soil , 76, 93Ï104.
Tian, G., B.T. Kang, and L. Brussaard. 1997. Effect of mulch quality on earthworm activity and nutrient
supply in the humid tropics, Soil Biol. Biochem ., 29, 369Ï373.
Tiunov, A. and S. Scheu. 2000. Microbial biomass, biovolume and respiration in Lumbricus terrestris L. cast
material of different age, Soil Biol. Biochem ., 32, 265Ï275.
Whalen, J.K. and H.H. Janzen. 2002. Labeling earthworms uniformly with 13 C and 15 N: implications for
monitoring nutrient fluxes, Soil Biol. Biochem ., 34, 1913Ï1918.
Whalen, J.K. and H.H. Janzen. 2003. Isotopic labelling of earthworms: response to comments by Schmidt et
al. (2003), Soil Biol. Biochem ., 35, 1265.
Whalen, J.K. and R.W. Parmelee. 1999. Quantification of nitrogen assimilation efficiencies and their use to
estimate organic matter consumption by the earthworms Aporrectodea tuberculata (Eisen) and Lum-
bricus terrestris L. Appl. Soil Ecol. , 13, 199Ï208.
Whalen, J.K. and R.W. Parmelee. 2000. Earthworm secondary production and determination of N flux through
earthworm communities in agroecosystems: comparison of two approaches, Oecologia , 124, 561Ï573.
Whalen, J.K., R.W. Parmelee, D.A. McCartney, and J.L. Vanardsdale. 1999. Movement of N from decomposing
earthworm tissue to soil, microbial and plant N pools, Soil Biol. Biochem ., 31, 487Ï492.
Whalen, J.K., R.W. Parmelee, and S. Subler. 2000. Quantification of nitrogen excretion rates for three lumbricid
earthworms using 15 N, Biol. Fertil. Soils , 32, 347Ï352.
Wolters, V. and R.G. Joergensen. 1992. Microbial carbon turnover in beech forest soils worked by Aporrectodea
caliginosa (Savigny) (Oligochaeta: Lumbricidae), Soil Biol. Biochem ., 24, 171Ï177.
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