(19)

(11)

EP 1 816 907 A2

(12)

(88) Date of publication A3: 31.08.2006 (43) Date of publication: 15.08.2007 Bulletin 2007/33 (21) Application number: 05848867.7 (22) Date of filing: 01.12.2005

(51) International Patent Classification (IPC):  A01C 14/00(2006.01) A01G 7/00(2006.01) (86) International application number: PCT/US2005/043439 (87) International publication number: WO 2006/060551 (08.06.2006 Gazette 2006/23)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 01.12.2004 US 632119 P (71) Applicant: FMC CORPORATION Philadelphia, PA 19103 (US)	(72) Inventors: LEBLANC, Jean F-69480 Amberieux D'Azergues (FR) SARAZIN, Michel F-69130 Ecully (FR) HULLEBROECK, Marc B-9100 Sint-Niklaas (BE) VAN AST, Jos NL-4223 MB Hoornaar (NL) (74) Representative: Thom, Russell  Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)