I have also seen the term "micronutrients" used on the packages of various types of plant fertilizer. These typically include minerals/elements such as iron, copper, manganese, boron, etc. For example, citrus fertilizer always includes several of these elements because citrus trees require them for plant health and/or good fruit production. --Lee Poulsen Pasadena, California, USA - USDA Zone 10a Latitude 34°N, Altitude 1150 ft/350 m On Aug 22, 2012, at 7:50 PM, Eugene Zielinski wrote: > In the U.S.A. they're better known as trace elements or trace minerals. > > Eugene Zielinski > Rapid City, SD > USA > > > -----Original Message----- >> From: Bulborum Botanicum <bulborum@gmail.com> >> Sent: Aug 22, 2012 5:27 PM >> To: Pacific Bulb Society <pbs@lists.ibiblio.org> >> Subject: Re: [pbs] Tulipa saxatilis >> >> Dietary minerals you call them probably >> >> Roland >> >> 2012/8/23 Ina <klazina@orcon.net.nz>: >>> Spore elements? >>> On 23/08/2012 11:08 a.m., Bulborum Botanicum wrote: >>>> spore elements >>> >>> -- >>> Ina Crossley >>> Auckland New Zealand Zone 10 >>> >>> _______________________________________________ >>> pbs mailing list >>> pbs@lists.ibiblio.org >>> http://pacificbulbsociety.org/list.php >>> http://pacificbulbsociety.org/pbswiki/ >> >> >> >> -- >> R de Boer >> La Maugardiere 1 >> F 27260 EPAIGNES >> FRANCE >> >> Phone./Fax 0033-232-576-204 >> Email: bulborum@gmail.com >> _______________________________________________ >> pbs mailing list >> pbs@lists.ibiblio.org >> http://pacificbulbsociety.org/list.php >> http://pacificbulbsociety.org/pbswiki/ > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/