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Implications of weed seedbank dynamics to weed management

Published online by Cambridge University Press:  12 June 2017

Robert G. Hartzler
Affiliation:
Department of Agronomy, Iowa State University, Ames, IA 50011
Frank Forcella
Affiliation:
North Central Soil Conservation Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Morris, MN 56267

Abstract

The species composition and density of weed seed in the soil vary greatly and are closely linked to the cropping history of the land. Altering tillage practices changes weed seed depth in the soil, which plays a role in weed species shifts and affects efficacy of control practices. Crop rotation and weed control practices also affect the weed seedbank. Information on the influence of cropping practices on the weed seedbank should be a useful tool for integrated weed management. Decision aid models use information on the weed seedbank to estimate weed populations, crop yield loss, and recommend weed control tactics. Understanding the light requirements of weed seed may provide new approaches to weed management. Improving and applying our understanding of weed seedbank dynamics is essential to developing improved weed management systems. The principles of plant ecology must be integrated with the science of weed management to develop strategies that take advantage of basic plant responses in weed management systems for agronomic crops.

Information

Type
Symposium
Copyright
Copyright © 1997 by the Weed Science Society of America 

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