SSSAJ Journal of Natural Resources and Life Sciences Education
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Soil Sci Soc Am J 49:968-973 (1985)
© 1985 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Potter, K. N.
Right arrow Articles by Horton, R.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Potter, K. N.
Right arrow Articles by Horton, R.
Agricola
Right arrow Articles by Potter, K. N.
Right arrow Articles by Horton, R.

Tillage Effects on Soil Thermal Properties1

K. N. Potter, R. M. Cruse and R. Horton2

ABSTRACT

Theoretical considerations indicate soil thermal properties may be altered by tillage, but few field studies have been conducted to compare soil thermal properties as affected by conservation or notill management systems. Surface-soil thermal properties were determined in the row zone for three soils in three tillage systems: conventional till, chisel plow, and no-till. The apparent thermal diffusivity was determined by harmonic analysis of soil temperature data, volumetric heat capacity from the volume fraction of the soil components, and thermal conductivity by the line source heat-probe method. Soil volumetric heat capacity was similar for all tillage treatments. Thermal diffusivity was significantly greater in the notill system than in conventional and chisel plow tillage systems, indicating that thermal conductivity also was greater in the no-till system. Direct determination of thermal conductivity by the line source heat-probe method at one site indicated that thermal conductivity was more than 20% greater in no-till than in the conventional till system. Percentage surface residue cover had a greater influence on soil temperature and soil heat flux than soil thermal properties.

NOTES

1 Journal paper no. J-11502 of the Iowa Agriculture and Home Econ. Exp. Stn., Ames, IA. Project 2423. This research was supported in part by USDA-SEA Agreement no. 58-519B-0-885.

2 Research Associate, Associate Professor and Assistant Professor, respectively, Agronomy Dep., Iowa State Univ., Ames, IA.

Received for publication June 25, 1984. Accepted for publication March 14, 1985.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1985 by the Soil Science Society of America.