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Indhold

Contents

Summary

Sammendrag

1 Introduction

2 Simulation of growth

	2.1 Competition for a maximum yield potential
	2.2 Growth of crops

3 Seed bank

	3.1 Seed deposits
	3.2 Seed decay
	3.3 Germination

4 Comparison of different herbicide strategies in oilseed rape

	4.1 Introduction
	4.2 Materials and methods
	4.3 Results
	4.4 Discussion

5 Herbicide resistance

	5.1 Stellaria media
	5.2 Brassica campestris

6 Output from the sugarbeet model

	6.1 Introduction
	6.2 Materials and methods
	6.3 Results
	6.4 Discussion

7 Output from the oilseed rape model

	7.1 Introduction
	7.2 Materials and methods
	7.3 Results
	7.4 Sensitivity of selected parameters
	7.5 Discussion
	7.6 Conclusions

8 Canadian experiences

9 Final comment

Appendix 1: Sugarbeet model - equations and parameters

Appendix 2: Oilseed rape model - equations and parameters

Literature

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