JEQ Grow Your Career With ASA
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in J Environ Qual 25:227-235 (1996)
© 1996 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 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
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Mallawatantri, A. P.
Right arrow Articles by Mulla, D. J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Mallawatantri, A. P.
Right arrow Articles by Mulla, D. J.
Agricola
Right arrow Articles by Mallawatantri, A. P.
Right arrow Articles by Mulla, D. J.

Characterization of Pesticide Sorption and Degradation in Macropore Linings and Soil Horizons of Thatuna Silt Loam

A. P. Mallawatantri, B. G. McConkey and D. J. Mulla*

Dep. of Soil, Water, and Climate, Univ. of Minnesota, St. Paul, MN 55108-6028.
Agriculture Canada, Agric. Res. Stn., P.O. Box 1030, Saskatchewan, S9H3X2, Canada.

* Corresponding author (dmulla{at}soils.umn.edu).

ABSTRACT

The effect of changes in soil characteristics with depth because of soil horizonation and macroporosity on fate of pesticides is poorly understood. Soil from the surface A horizons (0–0.65 m), albic E horizons (1.05–1.35 m), argillic Bt horizons (1.4–3.5 m), and surface linings of macropores in the argillic horizons (Bt-M, 1.4–3.5 m) of a Thatuna silt loam (fine-silty, mixed, mesic Xeric Argialbolls) were characterized for their physical, chemical, and microbiological effects on adsorption, desorption, and mineralization of 2,4-D, carbofuran, and metribuzin. Organic carbon (OC) contents decreased for soil materials in the order A (1.22%) > Bt-M (0.36%) > Bt (0.25%) = E (0.20%), and were correlated with the number of soil microbial colony forming units (log CFU) that decreased in the order A (7.4) > Bt-M (6.1) > E (5.6) = Bt (5.4). Percent macroporosity (pores 2–5 mm diam.) decreased in the order Bt (1.1%) > A (0.7%) > E (0.6%), which is the same order for decreases in saturated hydraulic conductivity (log m s–1), namely; Bt (–6) > A (–6.2) > E (–7.0). Freundlich adsorption partition coefficients (Kf– L kg–1) for A horizon soil with 2,4-D (1.1), carbofuran (1.0), and metribuzin (1.6) were significantly greater than in subsurface E or Bt matrix material. Sorption Kf values in macropore linings with carbofuran (1.1) and metribuzin (2.0) were comparable to or greater than their respective values of 1.0 and 1.6 in A horizon material. Percent mineralization in the A horizon after 139 d for [U-14C] 2,4-D (81.8%) and carbofuran (14.7%) was significantly greater than in all subsurface soil materials. Mineralization in Bt macropore linings for 2,4-D (17.0%) and carbofuran (8.4%) was significantly greater than in other subsurface soil materials. Mineralization of [U-14C] metribuzin was negligible (<3%) in all soil materials after 139 d.




This article has been cited by other articles:


Home page
 J. Environ. Qual.Home page
C. K. Keller, C. N. Butcher, J. L. Smith, and R. M. Allen-King
Nitrate in Tile Drainage of the Semiarid Palouse Basin
J. Environ. Qual., March 1, 2008; 37(2): 353 - 361.
[Abstract] [Full Text] [PDF]

Home page
 J. Environ. Qual.Home page
S. Hiradate, A. Furubayashi, N. Uchida, and Y. Fujii
Adsorption of 2,4-Dichlorophenoxyacetic Acid by an Andosol
J. Environ. Qual., January 9, 2007; 36(1): 101 - 109.
[Abstract] [Full Text] [PDF]

Home page
 J. Environ. Qual.Home page
T. Henriksen, B. Svensmark, and R. K. Juhler
Degradation and Sorption of Metribuzin and Primary Metabolites in a Sandy Soil
J. Environ. Qual., March 1, 2004; 33(2): 619 - 627.
[Abstract] [Full Text] [PDF]

Home page
 Soil Sci.Home page
S. L. Rockefeller, P. A. McDaniel, and A. L. Falen
Perched Water Table Responses to Forest Clearing in Northern Idaho
Soil Sci. Soc. Am. J., January 1, 2004; 68(1): 168 - 174.
[Abstract] [Full Text] [PDF]

Home page
 Soil Sci.Home page
M. Bundt, M. Jaggi, P. Blaser, R. Siegwolf, and F. Hagedorn
Carbon and Nitrogen Dynamics in Preferential Flow Paths and Matrix of a Forest Soil
Soil Sci. Soc. Am. J., September 1, 2001; 65(5): 1529 - 1538.
[Abstract] [Full Text] [PDF]

Home page
 J. Environ. Qual.Home page
M. Bundt, M. Krauss, P. Blaser, and W. Wilcke
Forest Fertilization with Wood Ash: Effect on the Distribution and Storage of Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyls (PCBs)
J. Environ. Qual., July 1, 2001; 30(4): 1296 - 1304.
[Abstract] [Full Text] [PDF]

Home page
 Soil Sci.Home page
P.A. McDaniel, R.W. Gabehart, A.L. Falen, J.E. Hammel, and R.J. Reuter
Perched Water Tables on Argixeroll and Fragixeralf Hillslopes
Soil Sci. Soc. Am. J., May 1, 2001; 65(3): 805 - 810.
[Abstract] [Full Text] [PDF]


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 © 1996 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.