I applaud Keith’s comments on getting it right in terms of nutrients. The NZ Daffodil Annual, 2004 has a cultural manual embedded within it. Chapter 1 is entitled “Site and Soil- First Fundamentals” It contains a full account of interpreting soil tests written by me with major input from Max Hamilton. Unfortunately the Annual is sold out – however anyone interested can E Mail me for a copy of Chapter 1 _ will try to get it scanned. One of my tasks over the next year is to revise the Manual bringing in more recent research findings and to publish it as a stand-alone document. Will keep you informed of progress.