Agricultural Engineering/Agronomy, Central Iowa, and BioCentury Research Farms

Velvetleaf Responses to 2-Year and 4-Year Crop Rotation Systems

Authors: Matthew Z. Liebman (Iowa State University) , Robert G. Hartzler (Iowa State University) , Paula R. Westerman (University of Rostock) , Fabián D. Menalled (Iowa State University) , Andrew Howard Heggenstaller (Iowa State University) , Philip M. Dixon (Iowa State University)

  • Velvetleaf Responses to 2-Year and 4-Year Crop Rotation Systems

    Agricultural Engineering/Agronomy, Central Iowa, and BioCentury Research Farms

    Velvetleaf Responses to 2-Year and 4-Year Crop Rotation Systems

    Authors: , , , , ,

Abstract

In 1938, C.E. Leighty described crop rotation as “the most effective means yet devised for keeping land free of weeds.” Despite the accumulation of a considerable amount of evidence to support this assertion, little has been learned over the past six decades about why, mechanistically, cropping system diversity suppresses weeds. The field experiment and modeling work described here were initiated to address this issue and focused particularly attention on the question of whether diverse rotations can achieve effective weed control through greater reliance on ecological interactions, such as seed predation, rather than herbicides.

Keywords: Statistics, Agronomy

How to Cite:

Liebman, M. Z. & Hartzler, R. G. & Westerman, P. R. & Menalled, F. D. & Heggenstaller, A. H. & Dixon, P. M., (2004) “Velvetleaf Responses to 2-Year and 4-Year Crop Rotation Systems”, Iowa State University Research and Demonstration Farms Progress Reports 2003(1).

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Published on
01 Jan 2004
Peer Reviewed