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Research ArticleResearchR

Measuring crop residue cover

J. M. Laflen, M. Amemiya and E. A. Hintz
Journal of Soil and Water Conservation November 1981, 36 (6) 341-343;
J. M. Laflen
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M. Amemiya
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E. A. Hintz
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ABSTRACT:

The photographic, meterstick, and line-transect methods of measuring the percentage of land covered with crop residue were evaluated by comparing residue cover on 10 Iowa fields farmed with conservation tillage. Although the line-transect method overestimated crop residue by 6 to 10 percent, variability in measurements proved less than with the photograph and meterstick methods. The line-transect method is preferable for field use, particularly if technicians are carefully trained in its use and in self-calibration so that overestimation of crop residue can be avoided.

Footnotes

  • J. M. Laflen is an agricultural engineer with the Agricultural Research Service, U.S. Department of Agriculture, located in Davidson Hall, Iowa State University, Ames, Iowa 50011. M. Amemiya is a professor of agronomy and extension agronomist with Iowa State University, Ames. E. A. Hintz is conservation agronomist with USDA's Soil Conservation Service, Des Moines, Iowa 50309. This article is a contribution from USDA and Iowa State University. Journal paper J-10213 of the Iowa Agriculture and Home Economics Experiment Station, Ames. Project 2450.

  • Copyright 1981 by the Soil and Water Conservation Society

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Journal of Soil and Water Conservation: 36 (6)
Journal of Soil and Water Conservation
Vol. 36, Issue 6
November/December 1981
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Measuring crop residue cover
J. M. Laflen, M. Amemiya, E. A. Hintz
Journal of Soil and Water Conservation Nov 1981, 36 (6) 341-343;

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Measuring crop residue cover
J. M. Laflen, M. Amemiya, E. A. Hintz
Journal of Soil and Water Conservation Nov 1981, 36 (6) 341-343;
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