SOIL PREPARATION

FOREWORD

T he relationships between data, information, knowledge and wisdom are well-known. In this hierarchical model, data comes first, information is next, then knowledge follows and finally wisdom is on the top. The authors of this book are well equipped for taking all the steps in this hierarchy, and hence it is no surprise that their capabilities to translate research information into applicable technology is demonstrated throughout this book. One of the most important functions of soil is that it serves as a medium for root growth. However, such a blunt statement does not define the optimal conditions needed for a healthy and quality root system for sustaining commercial vineyards. The authors present excellent documentation, particularly in describing root impediments of a wide nature as well as management and amelioration practices needed to create favourable conditions for grapevine root growth. The nature of variation in soil types in the South African grapevine regions results in site-specific impediments and, therefore, necessitates unique and tailor-made soil preparation practices, which lead to a great deal of innovation for creating optimal rooting conditions.

Leopoldt van Huyssteen

4 | FOREWORD