Table of Contents

Preface.

Opening lecture: The limits to agriculture.

The substrate: how are we treating the soil?.

When is a plant a weed?.

The increasing need for ecological knowledge in pest control.

Flow of water and nutrients through agro-ecosystems.

Relations between ecosystems in the rural landscape.

Closing lecture

About the Author

H. Eijsackers and A. Quispel are the authors of Ecological Bulletins, Bulletin 39, Ecological Implications of Contemporary Agriculture: Proceedings of a Symposium held 7-12 September, 1986, at Wageningen, published by Wiley.