JEQ
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published online 6 July 2006
Published in J Environ Qual 35:1496-1506 (2006)
DOI: 10.2134/jeq2005.0183
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Abstract Freely available
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
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 Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Parkin, T. B.
Right arrow Articles by Kaspar, T. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Parkin, T. B.
Right arrow Articles by Kaspar, T. C.
Agricola
Right arrow Articles by Parkin, T. B.
Right arrow Articles by Kaspar, T. C.
Related Collections
Right arrow Soil Microbiology
Right arrow Global Change
Right arrow Microbial Processes

Nitrous Oxide Emissions from Corn–Soybean Systems in the Midwest

Timothy B. Parkin* and Thomas C. Kaspar

USDA-ARS, National Soil Tilth Laboratory, 2150 Pammel Drive, Ames, IA 50011


Figure 1
View larger version (42K):

[in a new window]
  		Fig. 1. Nitrous oxide emissions, daily precipitation, average daily air temperatures, and average soil water contents at sampling times throughout the study period.

 

Figure 2
View larger version (29K):

[in a new window]
  		Fig. 2. Average differences between N2O fluxes measured in the row vs. between plant rows. Positive values indicate that in-row emissions are higher than between-row emissions for the soybean plots [(A) and (B)]. Negative values indicate that in-row emissions are lower than between-row emissions in the corn plots [(C) and (D)].

 

Figure 3
View larger version (30K):

[in a new window]
  		Fig. 3. (A) Diurnal variations in 5-cm soil temperature (closed circles) and N2O emissions (open circles) from three automated chambers placed in a corn field in 2004. (B) Relationship between 5-cm soil temperature and N2O emissions.

 

Figure 4
View larger version (19K):

[in a new window]
  		Fig. 4. Estimated and measured nitrous oxide fluxes for different management treatments. Error bars indicate 95% confidence intervals of the means. IPCC-1, IPCC-2, and IPCC-3 indicate estimates derived using Intergovernmental Panel on Climate Change emissions factors of 0.0025, 0.0125, and 0.0225, respectively.

 




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
Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
Copyright © 2006 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.