One of three student talks given at DairyNZ as part of their seminar series. I apologise I thought I had requested permission for this talk at the same time as the New Zealand Society of Soil Science talk (they are identical talks). DairyNZ is also asking if they can put the talk on line (Mootube) for their extension people to be able to access. 

To complete the form I have had to alter the date above: The talk was given on 28-11-20014.