Spatial and temporal dynamics of weed populations

Publication Type
Book chapter
Authors
Roland Gerhards
Year of publication
2010
Published in
Precision Crop Protection - the Challenge and Use of Heterogeneity
Editor
Erich-Christian Oerke and Roland Gerhards and Gunter Menz and Richard A. Sikora
Pubisher
Springer Verlag , Dordrecht, Heidelberg, London, New York
ISBN / ISSN / eISSN
978-90-481-9276-2_2
Page (from - to)
17-25
Keywords
Populationsdynamik, Unkrautregulierung
Abstract

Spatial and temporal variations in weed seedlings distributions often occur in arable fields and can be assessed and mapped using modern sensor- and information technologies. Both management and site-characteristics can result in the heterogeneity of weed populations. When site-specific weed management decisions were taken based on distribution maps a high potential for herbicide savings was calculated. It was found that for many weed species distribution remained stable over time when site-specific herbicides applications were realized based on economic weed thresholds.

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