Thank you again David! Ina Ina Crossley Auckland New Zealand Zone 10 On 28/02/2013 1:08 a.m., David Pilling wrote: > Hi, > > ppm = parts per million > > There is a web page calculator for fertiliser here: > > http://www.firstrays.com/fertcalc.htm > > > > David Pilling > david@pilling.demon.co.uk > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >