Crop and Soil Productivity Response to Corn Residue Removal
A Literature Review
W. W. Wilhelm*,a,
J. M. F. Johnsonb,
J. L. Hatfieldc,
W. B. Voorheesd and
D. R. Lindene
a USDA-ARS, 120 Keim Hall, Univ. of Nebraska, Lincoln, NE 68583-0934
b USDA-ARS, 803 Iowa Ave., Morris, MN 56267-1065
c 108 Natl. Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011-3120
d USDA-ARS (retired), 803 Iowa Ave., Morris, MN 56267-1065
e USDA-ARS (retired), 1991 Upper Buford Circle, St. Paul, MN 55108-0000

View larger version (46K):
[in a new window]
|
Fig. 1. Corn production in the United States (USDA, 1995).
|
|

View larger version (41K):
[in a new window]
|
Fig. 2. Corn production on land classified as highly erodible land by NRCS (USDA, 1995).
|
|

View larger version (17K):
[in a new window]
|
Fig. 3. (a) Temperature effect and (b) moisture effect for the CENTURY model used to quantify the change in soil organic matter pools (redrawn from Parton et al., 1987). ET, evapotranspiration.
|
|
Copyright © 2004 by the American Society of Agronomy.