Soil Carbon and Nitrogen Mineralization
Influence of Drying Temperature
R. L. Haney*,a,
A. J. Franzluebbersc,
E. B. Porterb,
F. M. Honsb and
D. A. Zubererb
a USDA-ARS, 808 E. Blackland Rd, Temple, TX 76502
b Dep. of Soil & Crop Sciences, Texas A&M University, Texas Agricultural Experiment Station, College Station, TX 77843
c USDA-ARS, 1420 Experiment Station Road, Watkinsville, GA 30677-2373

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Fig. 1. Rate of CO2 evolution during the first 4 d of incubation after drying at 40, 60, and 100°C and then rewetting.
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Fig. 2. Nitrogen mineralized after 24 d in soils dried at 40, 60, or 100°C following rewetting compared with 24-d N mineralization in soils that were kept continuously moist.
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Fig. 3. Nitrogen mineralized (NH4+N, NO2N, NO3N) after 24 d in soils kept continuously moist vs. soils that were dried and rewetted.
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Copyright © 2004 by the Soil Science Society of America.