Type: Chapter

Key issues and challenges of integrated weed management


C. J. Swanton

University of Guelph

T. Valente

University of Guelph

Publication date:

26 December 2017

ID: 9781838794262

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In order to intensify agricultural productivity while at the same time enhance ecosystem services, it is necessary to evaluate carefully how current weed-management technologies are deployed, including herbicides and herbicide-resistant crops. Herbicide chemistries and herbicide-resistant crops have provided excellent technologies that have resulted in significant changes to the way weeds can be controlled. This chapter highlights several key components that must form the basis for an effective integrated weed-management strategy, including tillage, the importance of understanding weed emergence relative to the crop, critical periods for weed control, crop morphology, row width, nutrient management and crop rotation.

Table of contents

1 Introduction
2 Tillage
3 Time of weed emergence relative to the crop
4 Critical periods for weed control
5 Crop morphology
6 Row width and seeding density to reduce weed competitiveness
7 Nutrient management
8 Crop rotation
9 Future trends and conclusion
10 Where to look for further information
11 References